Gamma-ray Burst 060814

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:02:34 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     224552,   Seg_Num: 0
GRB_RA:          221.348d {+14h 45m 23s} (J2000),
                 221.424d {+14h 45m 42s} (current),
                 220.776d {+14h 43m 06s} (1950)
GRB_DEC:         +20.583d {+20d 34' 58"} (J2000),
                 +20.555d {+20d 33' 19"} (current),
                 +20.793d {+20d 47' 34"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       6427 [cnts]    Image_Peak=492 [image_cnts]
TRIGGER_DUR:     1.024 [sec] 
TRIGGER_INDEX:   146     E_range: 25-100 keV
BKG_INTEN:       32594 [cnts]
BKG_TIME:        82926.61 SOD {23:02:06.61} UT
BKG_DUR:         8 [sec]
GRB_DATE:        13961 TJD;   226 DOY;   06/08/14
GRB_TIME:        82939.03 SOD {23:02:19.03} UT
GRB_PHI:          28.49 [deg]
GRB_THETA:        28.14 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     32.58 [sigma]
IMAGE_SIGNIF:    15.61 [sigma]
MERIT_PARAMS:     +1  +0  +0  +0  +2 +14  +0  +0 -29  +1 
SUN_POSTN:       144.37d {+09h 37m 30s}  +14.17d {+14d 10' 21"}
SUN_DIST:         73.18 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.12d {+02h 16m 29s}  +17.25d {+17d 14' 51"}
MOON_DIST:       141.52 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 215.42,13.74 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:04:20 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     224552,   Seg_Num: 0
GRB_RA:          221.3385d {+14h 45m 21.2s} (J2000),
                 221.4142d {+14h 45m 39.3s} (current),
                 220.7670d {+14h 43m 04.0s} (1950)
GRB_DEC:         +20.5841d {+20d 35' 02.7"} (J2000),
                 +20.5564d {+20d 33' 23.2"} (current),
                 +20.7940d {+20d 47' 38.5"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       88 [cnts]
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83010.57 SOD {23:03:30.57} UT,   71.5 [sec] since BAT Trigger Time
CENTROID_X:      283.83,  raw= 284  [pixels]
CENTROID_Y:      300.37,  raw= 300  [pixels]
ROLL:            279.17 [deg]
GAIN:            1
MODE:            2, Short Image mode
WAVEFORM:        134
EXPO_TIME:       0.10 [sec]
GRB_POS_XRT_Y:   3.71
GRB_POS_XRT_Z:   -41.17
IMAGE_URL:       sw00224552000msxps_rw.img
SUN_POSTN:       144.38d {+09h 37m 30s}  +14.17d {+14d 10' 20"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.14d {+02h 16m 33s}  +17.25d {+17d 15' 15"}
MOON_DIST:       141.52 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      211.31, 34.65 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:04:17 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     224552,   Seg_Num: 0
GRB_RA:          221.3385d {+14h 45m 21.2s} (J2000),
                 221.4142d {+14h 45m 39.3s} (current),
                 220.7670d {+14h 43m 04.0s} (1950)
GRB_DEC:         +20.5841d {+20d 35' 02.7"} (J2000),
                 +20.5564d {+20d 33' 23.2"} (current),
                 +20.7940d {+20d 47' 38.5"} (1950)
GRB_ERROR:       5.0 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       5.67e-08 [erg/cm2/sec]
GRB_SIGNIF:      9.38 [sigma]
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83010.57 SOD {23:03:30.57} UT,   71.5 [sec] since BAT Trigger Time
TAM[0-3]:        327.64 237.17 261.31 243.38
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       144.38d {+09h 37m 30s}  +14.17d {+14d 10' 20"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.14d {+02h 16m 32s}  +17.25d {+17d 15' 15"}
MOON_DIST:       141.52 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      211.31, 34.65 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:06:41 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.352d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.586d {+20d 35' 09"} (J2000)
POINT_ROLL:      279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83018.04 SOD {23:03:38.04} UT,   79.0 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.452
N_STARS:         13
X_OFFSET:        488 [pixels]
Y_OFFSET:        536 [pixels]
X_MAX:           1447 [pixels]
Y_MAX:           1495 [pixels]
DET_THRESH:      13
PHOTO_THRESH:    7
SL_URL:          sw00224552000msufc0079.fits
SUN_POSTN:       144.38d {+09h 37m 30s}  +14.17d {+14d 10' 18"}
SUN_DIST:         73.18 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.16d {+02h 16m 38s}  +17.26d {+17d 15' 48"}
MOON_DIST:       141.51 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       25.00, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:10:42 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
ROLL:            279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83123.86 SOD {23:05:23.86} UT,   184.8 [sec] since BAT Trigger Time
FILTER:          4, UVM2
EXPOSURE_ID:     177289525
X_OFFSET:        864 [pixels]
Y_OFFSET:        830 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1024
Y_GRB_POS:       990
BINNING_INDEX:   1
IM_URL:          sw00224552000msuni0184.fits
SUN_POSTN:       144.38d {+09h 37m 31s}  +14.17d {+14d 10' 15"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.20d {+02h 16m 47s}  +17.28d {+17d 16' 44"}
MOON_DIST:       141.51 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        If you have elected to receive attachments:  
COMMENTS:        The uvot_catalog_image.fits.gz file does not exist; skipping the attachment.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:08:15 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
POINT_ROLL:      279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83123.86 SOD {23:05:23.86} UT,   184.8 [sec] since BAT Trigger Time
FILTER:          4, UVM2
BKG_MEAN:        0.022
N_STARS:         3
X_OFFSET:        544 [pixels]
Y_OFFSET:        510 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1469 [pixels]
DET_THRESH:      3
PHOTO_THRESH:    2
SL_URL:          sw00224552000msufc0184.fits
SUN_POSTN:       144.38d {+09h 37m 31s}  +14.17d {+14d 10' 17"}
SUN_DIST:         73.18 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.17d {+02h 16m 41s}  +17.27d {+17d 16' 10"}
MOON_DIST:       141.51 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:04:45 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     224552,   Seg_Num: 0
GRB_RA:          221.3385d {+14h 45m 21.2s} (J2000),
                 221.4142d {+14h 45m 39.3s} (current),
                 220.7670d {+14h 43m 04.0s} (1950)
GRB_DEC:         +20.5841d {+20d 35' 02.7"} (J2000),
                 +20.5564d {+20d 33' 23.2"} (current),
                 +20.7940d {+20d 47' 38.5"} (1950)
GRB_ERROR:       5.0 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       88 [cnts]
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83010.57 SOD {23:03:30.57} UT,   71.5 [sec] since BAT Trigger Time
CENTROID_X:      283.83,  raw= 284  [pixels]
CENTROID_Y:      300.37,  raw= 300  [pixels]
ROLL:            279.17 [deg]
GAIN:            1
MODE:            2, Short Image mode
WAVEFORM:        134
EXPO_TIME:       0.10 [sec]
GRB_POS_XRT_Y:   3.71
GRB_POS_XRT_Z:   -41.17
IMAGE_URL:       sw00224552000msxps_rw.img
SUN_POSTN:       144.38d {+09h 37m 30s}  +14.17d {+14d 10' 20"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.14d {+02h 16m 33s}  +17.26d {+17d 15' 21"}
MOON_DIST:       141.52 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.21 [deg] galactic lon,lat of the burst
ECL_COORDS:      211.31, 34.65 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:07:40 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     224552,   Seg_Num: 0
GRB_RA:          221.348d {+14h 45m 23s} (J2000),
                 221.424d {+14h 45m 42s} (current),
                 220.776d {+14h 43m 06s} (1950)
GRB_DEC:         +20.583d {+20d 34' 58"} (J2000),
                 +20.555d {+20d 33' 19"} (current),
                 +20.793d {+20d 47' 34"} (1950)
GRB_DATE:        13961 TJD;   226 DOY;   06/08/14
GRB_TIME:        82939.03 SOD {23:02:19.03} UT
TRIGGER_INDEX:   146
GRB_PHI:          28.49 [deg]
GRB_THETA:        28.14 [deg]
DELTA_TIME:      38.00 [sec]
TRIGGER_DUR:     1.024 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     32.58 [sigma]
IMAGE_SIGNIF:    15.61 [sigma]
LC_URL:          sw00224552000msb.lc
SUN_POSTN:       144.38d {+09h 37m 31s}  +14.17d {+14d 10' 17"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.17d {+02h 16m 40s}  +17.27d {+17d 16' 02"}
MOON_DIST:       141.51 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Lightcurve.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is a rate trigger.  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 215.42,13.74 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:09:34 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
ROLL:            279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83123.86 SOD {23:05:23.86} UT,   184.8 [sec] since BAT Trigger Time
FILTER:          4, UVM2
EXPOSURE_ID:     177289525
X_OFFSET:        864 [pixels]
Y_OFFSET:        830 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1024
Y_GRB_POS:       990
BINNING_INDEX:   1
IM_URL:          sw00224552000msuni0184.fits
SUN_POSTN:       144.38d {+09h 37m 31s}  +14.17d {+14d 10' 16"}
SUN_DIST:         73.18 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.18d {+02h 16m 44s}  +17.27d {+17d 16' 28"}
MOON_DIST:       141.51 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:07:11 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.352d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.586d {+20d 35' 09"} (J2000)
ROLL:            279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83018.04 SOD {23:03:38.04} UT,   79.0 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     177289419
X_OFFSET:        864 [pixels]
Y_OFFSET:        830 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1024
Y_GRB_POS:       990
BINNING_INDEX:   1
IM_URL:          sw00224552000msuni0079.fits
SUN_POSTN:       144.38d {+09h 37m 31s}  +14.17d {+14d 10' 18"}
SUN_DIST:         73.18 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.16d {+02h 16m 39s}  +17.27d {+17d 15' 55"}
MOON_DIST:       141.51 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       25.00, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the XRT Position Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:10:23 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
POINT_ROLL:      279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83123.86 SOD {23:05:23.86} UT,   184.8 [sec] since BAT Trigger Time
FILTER:          4, UVM2
BKG_MEAN:        0.022
N_STARS:         3
X_OFFSET:        544 [pixels]
Y_OFFSET:        510 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1469 [pixels]
DET_THRESH:      3
PHOTO_THRESH:    2
SL_URL:          sw00224552000msufc0184.fits
SUN_POSTN:       144.38d {+09h 37m 31s}  +14.17d {+14d 10' 15"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.19d {+02h 16m 46s}  +17.28d {+17d 16' 40"}
MOON_DIST:       141.51 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        If you have elected to receive attachments:  
COMMENTS:        The uvot_catalog_srclist.fits.gz file does not exist; skipping the attachment.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:23:40 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
POINT_ROLL:      279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83798.99 SOD {23:16:38.99} UT,   860.0 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.434
N_STARS:         47
X_OFFSET:        544 [pixels]
Y_OFFSET:        510 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1469 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00224552000msufc0859.fits
SUN_POSTN:       144.39d {+09h 37m 33s}  +14.17d {+14d 10' 05"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.32d {+02h 17m 16s}  +17.33d {+17d 19' 44"}
MOON_DIST:       141.48 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:24:42 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
POINT_ROLL:      279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83798.99 SOD {23:16:38.99} UT,   860.0 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        1.434
N_STARS:         47
X_OFFSET:        544 [pixels]
Y_OFFSET:        510 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1469 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00224552000msufc0859.fits
SUN_POSTN:       144.39d {+09h 37m 33s}  +14.17d {+14d 10' 04"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.33d {+02h 17m 18s}  +17.33d {+17d 19' 59"}
MOON_DIST:       141.48 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:25:08 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
ROLL:            279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83798.99 SOD {23:16:38.99} UT,   860.0 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     177290200
X_OFFSET:        863 [pixels]
Y_OFFSET:        829 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1023
Y_GRB_POS:       989
BINNING_INDEX:   1
IM_URL:          sw00224552000msuni0859.fits
SUN_POSTN:       144.39d {+09h 37m 33s}  +14.17d {+14d 10' 04"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.33d {+02h 17m 19s}  +17.33d {+17d 20' 05"}
MOON_DIST:       141.48 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:25:50 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 60"} (J2000)
POINT_ROLL:      279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  84206.54 SOD {23:23:26.54} UT,   1267.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.479
N_STARS:         28
X_OFFSET:        544 [pixels]
Y_OFFSET:        510 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1469 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00224552000msufc1267.fits
SUN_POSTN:       144.39d {+09h 37m 33s}  +14.17d {+14d 10' 03"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.34d {+02h 17m 21s}  +17.34d {+17d 20' 14"}
MOON_DIST:       141.47 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:28:10 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 60"} (J2000)
POINT_ROLL:      279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  84206.54 SOD {23:23:26.54} UT,   1267.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        1.479
N_STARS:         28
X_OFFSET:        544 [pixels]
Y_OFFSET:        510 [pixels]
X_MAX:           1503 [pixels]
Y_MAX:           1469 [pixels]
DET_THRESH:      10
PHOTO_THRESH:    5
SL_URL:          sw00224552000msufc1267.fits
SUN_POSTN:       144.39d {+09h 37m 34s}  +14.17d {+14d 10' 02"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.36d {+02h 17m 26s}  +17.35d {+17d 20' 47"}
MOON_DIST:       141.47 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:28:38 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 60"} (J2000)
ROLL:            279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  84206.54 SOD {23:23:26.54} UT,   1267.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     177290607
X_OFFSET:        863 [pixels]
Y_OFFSET:        829 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1023
Y_GRB_POS:       989
BINNING_INDEX:   1
IM_URL:          sw00224552000msuni1267.fits
SUN_POSTN:       144.39d {+09h 37m 34s}  +14.17d {+14d 10' 01"}
SUN_DIST:         73.16 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.36d {+02h 17m 27s}  +17.35d {+17d 20' 53"}
MOON_DIST:       141.47 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        If you have elected to receive attachments:  
COMMENTS:        The uvot_catalog_image.fits.gz file does not exist; skipping the attachment.

GCN Circular #5447
A. Moretti (INAF-OAB), S. D. Barthelmy (GSFC), J. R. Cummings (NASA/UMD), C. Guidorzi (Univ Bicocca&INAF-OAB), K. M. McLean (LANL/UTD), D. M. Palmer (LANL), P. Romano (INAF-OAB), M. Stamatikos (NASA/ORAU) and D. E. Vanden Berk (PSU) report on behalf of the Swift Team:
At 23:02:19 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 060814 (trigger=224552). Swift slewed immediately to the burst. The BAT on-board calculated location is RA,Dec 221.348, +20.583 {14h 45m 23s, +20d 34' 58"} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows at least 3 large peaks. The first peak starts at T-10 sec, peaks at T+16 sec with 12,000 cnts/sec. The second peaks at T+70 sec at 6000 cnts/sec. The third peaks at T+120 sec at ~1000 cnts/sec.
The XRT began observing the field at 23:03:30 UT, 72 seconds after the BAT trigger. XRT found a bright variable X-ray source located at RA(J2000) = 14h 45m 21.2s, Dec(J2000) = +20d 35' 02.7", with an estimated uncertainty of 5.0 arcseconds (90% confidence radius). This location is 32 arcseconds from the BAT on-board position, within the BAT error circle. The initial flux in the 0.1s image was 5.7e-08 erg/cm2/s (0.2-10 keV).
UVOT took a finding chart exposure of 100 seconds with the White (160-650 nm) filter starting 80 seconds after the BAT trigger. No afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of the XRT error circle. The typical 3-sigma upper limit has been about 18.5 mag. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.04.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:27:00 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 60"} (J2000)
ROLL:            279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  84206.54 SOD {23:23:26.54} UT,   1267.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     177290607
X_OFFSET:        863 [pixels]
Y_OFFSET:        829 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1023
Y_GRB_POS:       989
BINNING_INDEX:   1
IM_URL:          sw00224552000msuni1267.fits
SUN_POSTN:       144.39d {+09h 37m 34s}  +14.17d {+14d 10' 02"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.35d {+02h 17m 24s}  +17.34d {+17d 20' 31"}
MOON_DIST:       141.47 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 14 Aug 06 23:26:37 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     224552,   Seg_Num: 0
POINT_RA:        221.351d {+14h 45m 24s} (J2000)
POINT_DEC:       +20.583d {+20d 34' 59"} (J2000)
ROLL:            279.167d
IMG_START_DATE:  13961 TJD;   226 DOY;   06/08/14
IMG_START_TIME:  83798.99 SOD {23:16:38.99} UT,   860.0 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     177290200
X_OFFSET:        863 [pixels]
Y_OFFSET:        829 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       1023
Y_GRB_POS:       989
BINNING_INDEX:   1
IM_URL:          sw00224552000msuni0859.fits
SUN_POSTN:       144.39d {+09h 37m 34s}  +14.17d {+14d 10' 03"}
SUN_DIST:         73.17 [deg]   Sun_angle= -5.1 [hr] (East of Sun)
MOON_POSTN:       34.34d {+02h 17m 23s}  +17.34d {+17d 20' 25"}
MOON_DIST:       141.47 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:       24.99, 63.20 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:      211.32, 34.65 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
COMMENTS:        The image has 2x2 binning (compression).  
COMMENTS:        All 4 attachments are included.

GCN Circular #5448
Klotz, A. (CESR-OMP), Boer M. (OHP), Atteia J.L. (LATT-OMP) report:
We imaged the field of GRB 060814 detected by SWIFT (trigger 224552) with the TAROT robotic telescope (D=25cm) located at the Calern observatory, France.
First image was acquired 21.5s after the GRB trigger (6s after the notice). 3 first images were recorded during the gamma propt emission.
The field elevation decreased from 11 degrees above horizon and weather conditions were good.
Date of trigger : t0 = 2006-08-14T23:02:18.816
First image is 60s exposure trailed. No OT is visible: t0+21.5s to t0+81.5s : R > 14.8
Second image is 30s exposure. No OT is visible: t0+88s to t0+118s : R > 15.7
Third image is 30s exposure. No OT is visible: t0+125s to t0+155s : R > 15.7
Fourth image is 30s exposure. No OT is visible: t0+161s to t0+191s : R > 15.7
We co-added a series of exposures. No OT is visible: t0+88s to t0+228s : R > 17.4
Magnitudes were estimated with the nearby USNO-B1 stars
Galactic coordinates are lon= 24.9891 lat=+63.2011 and the galactic extinction in R band is 0.1 magnitudes estimated from D. Schlegel et al. 1998ApJ...500..525S.
This message may be cited.
GCN Circular #5449
Richard J. Cool (Arizona), Daniel J. Eisenstein (Arizona), David W. Hogg (NYU), Michael R. Blanton (NYU), David J. Schlegel (LBNL), J. Brinkmann (APO), Donald Q. Lamb (Chicago), Donald P. Schneider (PSU), and Daniel E. Vanden Berk (PSU) report:
The Sloan Digital Sky Survey (SDSS) imaged the field of burst GRB060814 prior to the burst. As these data should be useful as a pre-burst comparison and for calibrating photometry, we are supplying the images and photometry measurements for this GRB field to the community.
Data from the SDSS, including 5 FITS images, 3 JPGS, and 3 files of photometry and astrometry, are being placed at http://mizar.as.arizona.edu/~grb/public/GRB060814
We supply FITS images in each of the 5 SDSS bands of a 8'x8' region centered on the GRB position (ra=221.348 (14:45:23.5), dec=20.5830 (20:34:58.8); Swift-BAT TRIGGER 224552), as well as 3 gri color-composite JPGs (with different stretches). The units in the FITS images are nanomaggies per pixel. A pixel is 0.396 arcsec on a side. A nanomaggie is a flux-density unit equal to 10^-9 of a magnitude 0 source or, to the extent that SDSS is an AB system, 3.631e-6 Jy. The FITS images have WCS astrometric information.
In the file GRB060814_sdss.calstar.dat, we report photometry and astrometry of 347 bright stars (r<20.5) within 15' of the burst location. The magnitudes presented in this file are asinh magnitudes as are standard in the SDSS (Lupton 1999, AJ, 118, 1406). Beware that some of these stars are not well- detected in the u-band; use the errors and object flags to monitor data quality.
In the files GRB060814_sdss.objects_flux.dat and GRB060814_sdss.objects_magnitudes.dat, we report photometry of 1071 objects detected within 6' of the GRB position. We have removed saturated objects and objects with model magnitudes fainter than 23.0 in the r- band. The fluxes listed in GRB060814_sdss.objects_flux.dat are in nanomaggies while the magnitudes listed in GRB060814_sdss.objects_magnitudes.dat are asinh magnitudes.
All quantities reported are standard SDSS photometry, meaning that they are very close to AB zeropoints and magnitudes are quoted in asinh magnitudes. Photometric zeropoints are known to about 2% rms. None of the photometry is corrected for dust extinction. The Schlegel, Finkbeiner, and Davis (1998) predictions for this region are A_U=0.201 mag, A_g=0.148 mag, A_r = 0.107 mag, A_i=0.081 mag, and A_z=0.058 mag.
There are currently no objects within 6 arcminutes of the GRB position in the SDSS spectroscopic database.
SDSS astrometry is generally better than 0.1 arcsecond per coordinate. Users requiring high precision astrometry should take note that the SDSS astrometric system can differ from other systems such as those used in other notices; we have not checked the offsets in this region.
More detailed information pertaining to our SDSS GRB releases can be found in our initial data release paper (Cool et al. 2006, astro-ph/0601218). See the SDSS DR4 documentation for more details: http://www.sdss.org/dr5.
These data have been reduced using a slightly different pipeline than that used for SDSS public data releases. We cannot guarantee that the values here will exactly match those in the data release in which these data are included. In particular, we expect the photometric calibrations to differ by of order 0.01 mag.
This note may be cited, but please also cite the SDSS data release paper, Adelman-McCarthy et al. (2006, ApJS, in press, astro-ph/0507711), when using the data or referring to the technical documentation.
GCN Circular #5450
D. Malesani (SISSA) and F. Patat (ESO) report on behalf of the MISTICI collaboration:
We have observed the field of GRB 060814 (Moretti et al., GCN 5447). Observations were carried out with the ESO VLT UT2 equipped with FORS1, under thin clouds.
We find no source at the position of the X-ray afterglow, with a 3sigma limiting magnitude R = 24. The mean time was Aug 15.0 UT (58 minutes after the burst).
This message can be cited.
GCN Circular #5451
A. Moretti (INAF-OAB), C. Guidorzi (Univ. Bicocca & INAF-OAB), P. Romano (INAF-OAB) report on behalf of the Swift-XRT team:
We have analysed the first 4 orbits of Swift-XRT data obtained for GRB 060814 (trigger number 224552). The data consist of 428 s in Windowed Timing (WT) mode, starting 72 seconds after the BAT trigger and 9.2 ks in Photon Counting (PC) mode. Using PC data we obtain a refined position of:
```
RA(J2000) =   14 45 21.48
Dec(J2000) = +20 35 11.8
```
with an estimated uncertainty radius of 3.5 arcsec (90% containment).
The light-curve, initially, shows a steep decay (alpha1=2.3+/-0.1) up to a break at t_break1=1292+/-140.s. On top of this steep decay there is a flare peaking at 150 s. After the break, the afterglow shows a shallow decay (alpha2=0.3+/-0.1) up to t_break2=7500+/-2000 s, when the light-curve steepens (alpha3=1.0+/-0.2).
The spectrum formed from all the WT data (< t_break1) can be modelled with a power-law of photon index Gamma = 1.67 +/- 0.03, with an excess absorbing column of NH = (2.7 +/- 0.2)e21 cm^-2 in addition to the Galactic value of 2.40e20 cm^-2. The spectrum formed from the PC data (> t_break1) is significantly softer than the pre-break spectrum: it can be modelled with a power-law of photon index Gamma = 2.2 +/- 0.10, with an absorbing column of NH = (3.6 +/- 0.4)e21 cm^-2, which is marginally consistent with the previous one.
Assuming the light-curve continues to decay with alpha3=1.0, the count rate at 24 hours is predicted to be 0.030 count s^-1. This corresponds to an observed (unabsorbed) flux of 1.5e-12 (2.7e-12) erg cm^-2 s^-1.
This circular is an official product of the Swift-XRT team.
[GCN OPS NOTE(15aug06): This Circular was delayed by ~4 hrs due to problems at the GCN end.]
GCN Circular #5453
A. Cucchiara and A. Moretti report on behalf of the Swift/UVOT team:
The Swift UVOT began observing GRB 060814 (trigger #224552, A. Moretti et al., GCN Circ. 5447) 80 seconds after the BAT trigger. No optical afterglow is detected in the XRT refined error circle (A. Moretti et al, GCN Circ. 5451).
The 3-sigma limiting magnitudes for the finding chart and the coadded images for the UVOT filters are listed below:
```
Finding chart:

Filter        T_range (s)    Exposure (s)    3sigma UL
White         80-178         98              19.70

Coadded images:

Filter        T_range (s)    Exposure (s)    3sigma UL
WHITE         80-20180       1445            21.39
V             180-12176      2008            20.36
B             388-25364      2085            21.53
U             364-24651      2310            21.04
W1            340-23738      2138            20.52
M2            285-13073      1080            20.50
W2            416-7882       349             20.02
```
T_range is calculated from the time of the burst. No correction has been made for the Galactic reddening of E(B-V) = 0.04 mag (Schlegel et al. 1998) along the line of sight to the burst.
GCN Circular #5456
D. Malesani (SISSA) reports on behalf of the MISTICI collaboration:
Following the revised position for the X-ray afterglow of GRB 060814 (Moretti et al., GCN 5447, 5451), I have looked at the VLT images taken the last night (Malesani et al., GCN 5450).
On the edge of the XRT error box, there is a source. It is extended, or it may be the superposition of more than one source (the seeing was 0.8"). The source is detected in both R and I images, and is not visible in the SDSS frames (Cool et al., GCN 5449). However, it is likely fainter than the SDSS limit. The "centroid" of the object has the following approximate coordinates:
```
alpha = 14:45:21.3
delta = +20:35:10.19
```
A finding chart is posted at the following URL:
http://www.sissa.it/~malesani/GRB/060814/GRB060814_finder.jpg
At the moment, it is not clear whether the object is related to the GRB.
This message can be cited.
GCN Circular #5455
A.J. Levan (U. Hertfordshire), N.R. Tanvir, E.Rol (U. Leicester), A. Fruchter (STScI), A. Adamson (JAC) report on behalf of a larger collaboration:
We observed the location of GRB 060814 with UKIRT beginning at 05:50 UT (approximately 7 hours post burst). Observations were obtained in the K-band. Within the refined XRT error circle (Moretti GCN Circ. 5451) we find a single source at
```
RA: 14:45:21.1 (J2000)
DEC: +20:35:09 (J2000)
```
With a magnitude of K~18. We suggest this may be the IR afterglow of GRB 060814.
Further observations are planned.
GCN Circular #5457
S. B. Cenko, E. O. Ofek (Caltech), D. Gelino (Michelson Science Center, Caltech), Tommy Thompson (UC-San Diego), P. A. Price (IfA), and E. Berger (Carnegie) report on behalf of a larger collaboration:
We have imaged the field of GRB 060814 (Moretti et al.; GCN 5447) with the Wide Field Infrared Camera mounted on the Palomar 200" Hale Telescope. Images were taken in the Ks band at a mean epoch of approximately 03:25 15 August UT (~ 4.4 hours after the burst).
Near the revised XRT error circle (Moretti et al.; GCN 5451), we find only the possible counterpart identified by Levan et al. (GCN 5455) and Malesani (GCN 5456). We measure the magnitude of this extended object to be Ks ~ 18.2 (calculated with respect to several nearby 2MASS objects). This is in agreement with the measurement of Levan et al. several hours later, indicating significant host contribution to any possible afterglow.
The limiting magnitude of our co-added stack is approximately Ks > 18.5.
GCN Circular #5458
E. O. Ofek and S. B. Cenko (Caltech) report on behalf of a larger collaboration:
We have imaged the field of GRB 060814 (Moretti et al; GCN 5447) with the automated Palomar 60-inch telescope. We obtained 19 x 180 s i-band images and 15 x 180 s z-band images, both at UTC 2006 August 15.24 (mid time; 0.28 d after the burst). We identify the extended source reported by Malesani (GCN 5456), on the edge of the revised XRT error circle (GCN 5451). We note that this source is also detected in the SDSS g-band image, and possibly also in the SDSS i-band image. The magnitude of this source is g=22.9 and i=22.5, as measured in the SDSS g-band and P60 i-band images, respectively.
We cannot identify any other sources within the XRT error circle to a limiting magnitude of about 23.0 and 21.5 in i- and z-band, respectively.
GCN Circular #5459
M. Stamatikos (GSFC/ORAU), L. Barbier (GSFC), S. D. Barthelmy (GSFC), J. Cummings (GSFC/ORAU), E. Fenimore (LANL), N. Gehrels (GSFC), D. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), M. Koss (GSFC/UMD), C. Markwardt (GSFC/UMD), A. Moretti (INAF-OAB), D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (GSFC/ISAS), J. Tueller (GSFC) on behalf of the Swift-BAT team:
Using the data set from T-239 to T+963 sec from recent telemetry downlinks, we report further analysis of BAT GRB 060814 (trigger #224552) (Moretti, et al., GCN Circ. 5447). The BAT ground-calculated position is RA,Dec = 221.336, 20.593 deg {14h 45m 20.6s, 20d 35' 36.3"} (J2000) +- 0.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 64%.
There are four main peaks. The first starts at ~T-10 sec and blends into the second peak which peaks at T+16 and ends around T+40 sec. The second peak is the brightest. The third peak starts roughly T+50, peaks at ~T+70 and ends at ~T+110 sec. It is half as bright as the second peak. The fourth and much smaller peak is about 40 sec wide and peaks at T+130 sec. T90 (15-350 keV) is 146 +- 10 sec (estimated error including systematics).
The time-averaged spectrum from T-9.4 to T+224 is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.56 +- 0.03. The fluence in the 15-150 keV band is 1.50 +- 0.02 x 10^-5 erg/cm2. The 1-sec peak photon flux measured from T+15.40 sec in the 15-150 keV band is 7.4 +- 0.3 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
GCN Circular #5460
S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, and T. Cline on behalf of the Konus-Wind team report:
The long GRB 060814 (Swift-BAT trigger #224552; Moretti et al., GCN 5447) triggered Konus-Wind at T0=82954.447 s UT (23:02:34.447).
As observed by Konus-Wind the burst shows two main pulses and a weak extended emission seen up to T-T0 ~200s. The most intense pulse starts at T-T0 ~ -21 s and has a duration of ~40 s, the second pulse starts at T-T0 ~38 s and has a duration of ~35 s. T90 (18-1160 keV) is 134 +- 4 sec.
The burst fluence is 2.69(-0.79, +0.12)x10^-5 erg/cm2, and the 256-ms peak flux measured from T0+0.576 s 2.13(-0.55, +0.29)x10^-6 erg/cm2/s (both in the 20 keV - 1 MeV energy range).
The spectrum of the burst integrated from T0 to T0+73.984 s is well fitted (in the 20 keV - 1 MeV range) by a power law with exponential cutoff model: dN/dE ~ E^(-alpha) * exp(-(2-alpha)*E/Ep) with alpha = 1.43(-0.16, +0.15) and Ep = 257(-58, +122) keV (chi2 = 65/57 dof).
All the quoted errors are at the 90% confidence level.
GCN Circular #5461
A.J. Levan (U. Hertfordshire), E. Rol, N.R. Tanvir (U. Leicester), A. Fruchter (STScI), J. Rhoads (ASU), C. Davis, A. Adamson (JAC) report for a larger collaboration:
We obtained a second epoch of K-band observations of GRB 060814 at UKIRT beginining at August 16, 06:46 UT. The suggested IR afterglow (GCN Circ 5455) is still detected and has faded by 0.4 +/- 0.1 mags, confirming its association with GRB 060814.
The afterglow decay is very slow, with alpha~0.25. This may well represent a signficant contribution from an underlying host galaxy (see GCN Circs 5456 & 5457).
GCN Circular #5464
A. Moretti (INAF-OAB), C. Guidorzi (Univ. Bicocca & INAF-OAB), P. Romano (INAF-OAB), D.N. Burrows (PSU), N. Gehrels (GSFC) report on behalf of the Swift-XRT team:
Based on the most recent downlinked data on GRB060814 (trigger number 224552) we find clear evidence of a break in the light curve at 42(+/-6) ks from the burst trigger (see the light curve at http://www.brera.inaf.it/~moretti/grbplot/xrt060814.gif) which could be a jet break. The light curve slope steepens from 1.04+/-0.05 to 1.9+/-0.3 (errors are quoted at 90% confidence level). In order to convert the XRT count rate to absorbed (unabsorbed) flux the conversion factor is 4.9E-11 (8.5E-11)
Therefore we encourage optical data collection on this GRB in order to measure the redshift and to test whether this break is achromatic.
This circular is an official product of the Swift-XRT team.
GCN Circular #5468
A. Pelangeon & J-L. Atteia (LATT-OMP) report:
We have used the spectral parameters obtained for the most intense part of GRB 060814 -- from T0 to T0+8.448 s, Konus time (V. Pal'shin, Ioffe Inst., private communication) -- observed by Konus-Wind (Golenetskii et al., GCNC 5460) to compute the spectral pseudo-redshift** of this bright burst detected by SWIFT-BAT (Moretti et al., GCNC 5447).
We find a pseudo-redshift pz= 2.4 +/- 0.8
We thank V. Pal'shin for having kindly performed the spectrum analysis of the most intense part and providing us the spectral parameters.
** cf. http://www.ast.obs-mip.fr/grb/pz
GCN Circular #5487
M. Suzuki, Y. Terada, T. Tamagawa (RIKEN), M. Ohno, T. Takahashi, T. Asano, T. Uehara, Y. Fukazawa (Hiroshima U.), K. Yamaoka, S. Sugita (Aoyama Gakuin U.), K. Abe, K. Onda, M. Suzuki,Y. Urata, M. Tashiro (Saitama U.), S. Hong (Nihon U.), K. Nakazawa, T. Takahashi (ISAS/JAXA), T. Enoto, R. Miyawaki, K. Kokubun K. Makishima (Univ. of Tokyo), on behalf of the Suzaku WAM team report:
The bright, long burst, GRB 060814 (Swift-BAT trigger #224552; A. Moretti et al., GCN 5447; GCN 5451; M. Stamatikos et al., GCN 5459), triggered the Suzaku Wideband All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 23:02:17.783 (UT). The 1st, 2nd and 3rd peaks (GCN 5459) are clearly seen in the light curve observed by WAM and the 4th peak is marginally seen. The T90 duration is ~125 seconds. The fluence in 100 - 1000 keV was 2.2 (-0.3 +0.2)X10^-5 erg/cm2. The 1-s peak flux was 2.9 (-1.2 +0.1) photons/cm2/s in the same energy range.
Preliminary result shows that the time-averaged spectrum is well-fitted by a power law with an exponential cutoff (A * E^{-alpha} * exp(-(2-alpha)*E/Epeak)) having the following parameters:
```
 alpha        1.6 (-0.5, +0.4), and
 Epeak        312 (-152, +159) keV.
```
All the quoted errors are at statistical 90% confidence level, in which systematic errors are not included.
GCN Circular #6663
Christina C. Thoene (DARK/UC Berkeley), Daniel A. Perley and J. S. Bloom (UC Berkeley) report:
On 2007 April 15 (UT) we imaged the field of GRB 060814 with Keck I 10m telescope + LRIS for 750s in I and 840s in V under poor seeing conditions. The host galaxy reported by Malesani et al. (GCN 5456) and others is well-detected at a position consistent with the locations of the IR (Levan et al., GCN 5455) and X-ray (GCN 5451; [1]) transients. A finding chart of the field can be found at:
http://lyra.berkeley.edu/~dperley/060814/060814_lris_v.png
We also took spectra of the host galaxy on July 18 with LRIS, using grism 600/4000 and dicroic 560, which covers the wavelength range between 5500 and 9700 AA in the red arm. From the detected [OII] 3729 AA and [OIII] 5008 AA emission lines, we infer a redshift of z=0.84 for the host galaxy. The second [OIII] line at 4959 is marginally detected whereas H beta lies in the atmospheric absorption lines and could not be detected. An image of the 2D spectrum indicating the detected emission lines can be found at:
http://lyra.berkeley.edu/~cthoene/GRBs/GRB060814_2dspec.jpg
footnote:
[1] 14:45:21.29, +20:35:10.7, 90% unc. 0.9", from http://astro.berkeley.edu/~nat/swift/xrt_pos.html (v0.0)
New/revised redshift from the TOUGH project, in particular: 1205.3162 1205.3490 1205.3779 1205.4036

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Jochen Greiner, last update: 08-Jul-2012 [Disclaimer]