Gamma-ray Burst 070129

(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 29 Jan 07 23:36:25 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     258408,   Seg_Num: 0
GRB_RA:           37.014d {+02h 28m 03s} (J2000),
                  37.109d {+02h 28m 26s} (current),
                  36.339d {+02h 25m 21s} (1950)
GRB_DEC:         +11.697d {+11d 41' 51"} (J2000),
                 +11.729d {+11d 43' 44"} (current),
                 +11.474d {+11d 28' 27"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       0 [cnts]    Image_Peak=1246 [image_cnts]
TRIGGER_DUR:     64.000 [sec] 
TRIGGER_INDEX:   20000     E_range: 15-50 keV
BKG_INTEN:       0 [cnts]
BKG_TIME:        0.00 SOD {00:00:00.00} UT
BKG_DUR:         0 [sec]
GRB_DATE:        14129 TJD;    29 DOY;   07/01/29
GRB_TIME:        84910.26 SOD {23:35:10.26} UT
GRB_PHI:          79.34 [deg]
GRB_THETA:        29.05 [deg]
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.28 [sigma]
MERIT_PARAMS:     +1  +0  +0  +6  +1  -3  +0  +0  -2  +1 
SUN_POSTN:       312.13d {+20h 48m 30s}  -17.82d {-17d 49' 27"}
SUN_DIST:         88.89 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.80d {+06h 03m 12s}  +28.47d {+28d 27' 55"}
MOON_DIST:        52.66 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.21,-44.65 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       38.48, -2.78 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Coordinates.  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF & BKG_{INTEN, TIME, DUR} are undefined.)  
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 = 267.07,-7.42 [deg].

red DSS finding chart ps-file

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:37:52 UT
NOTICE_TYPE:     Swift-XRT Image
TRIGGER_NUM:     258408,   Seg_Num: 0
GRB_RA:           37.0033d {+02h 28m 00.7s} (J2000),
                  37.0989d {+02h 28m 23.7s} (current),
                  36.3287d {+02h 25m 18.8s} (1950)
GRB_DEC:         +11.6852d {+11d 41' 06.7"} (J2000),
                 +11.7167d {+11d 42' 59.9"} (current),
                 +11.4619d {+11d 27' 42.7"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       117 [cnts]
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85043.95 SOD {23:37:23.95} UT,   133.7 [sec] since BAT Trigger Time
CENTROID_X:      318.24,  raw= 318  [pixels]
CENTROID_Y:      302.26,  raw= 302  [pixels]
ROLL:            251.51 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   10.05
GRB_POS_XRT_Z:   37.59
IMAGE_URL:       sw00258408000msxps_rw.img
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 27"}
SUN_DIST:         88.88 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.81d {+06h 03m 15s}  +28.46d {+28d 27' 54"}
MOON_DIST:        52.68 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.21,-44.66 [deg] galactic lon,lat of the burst
ECL_COORDS:       38.47, -2.79 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:37:51 UT
NOTICE_TYPE:     Swift-XRT Position
TRIGGER_NUM:     258408,   Seg_Num: 0
GRB_RA:           37.0033d {+02h 28m 00.7s} (J2000),
                  37.0989d {+02h 28m 23.7s} (current),
                  36.3287d {+02h 25m 18.8s} (1950)
GRB_DEC:         +11.6852d {+11d 41' 06.7"} (J2000),
                 +11.7167d {+11d 42' 59.9"} (current),
                 +11.4619d {+11d 27' 42.7"} (1950)
GRB_ERROR:       4.7 [arcsec radius, statistical plus systematic, 90% containment]
GRB_INTEN:       3.30e-09 [erg/cm2/sec]
GRB_SIGNIF:      10.81 [sigma]
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85043.95 SOD {23:37:23.95} UT,   133.7 [sec] since BAT Trigger Time
TAM[0-3]:        327.62 237.16 261.16 243.48
AMPLIFIER:       2
WAVEFORM:        134
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 27"}
SUN_DIST:         88.88 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.81d {+06h 03m 15s}  +28.46d {+28d 27' 54"}
MOON_DIST:        52.68 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.21,-44.66 [deg] galactic lon,lat of the burst
ECL_COORDS:       38.47, -2.79 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Coordinates.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:37:56 UT
NOTICE_TYPE:     Swift-XRT Processed Image
TRIGGER_NUM:     258408,   Seg_Num: 0
GRB_RA:           37.0033d {+02h 28m 00.7s} (J2000),
                  37.0989d {+02h 28m 23.7s} (current),
                  36.3287d {+02h 25m 18.8s} (1950)
GRB_DEC:         +11.6852d {+11d 41' 06.7"} (J2000),
                 +11.7167d {+11d 42' 59.9"} (current),
                 +11.4619d {+11d 27' 42.7"} (1950)
GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
GRB_INTEN:       117 [cnts]
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85043.95 SOD {23:37:23.95} UT,   133.7 [sec] since BAT Trigger Time
CENTROID_X:      318.24,  raw= 318  [pixels]
CENTROID_Y:      302.26,  raw= 302  [pixels]
ROLL:            251.51 [deg]
GAIN:            1
MODE:            3, Long Image mode
WAVEFORM:        134
EXPO_TIME:       2.50 [sec]
GRB_POS_XRT_Y:   10.05
GRB_POS_XRT_Z:   37.59
IMAGE_URL:       sw00258408000msxps_rw.img
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 26"}
SUN_DIST:         88.88 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.81d {+06h 03m 16s}  +28.46d {+28d 27' 53"}
MOON_DIST:        52.68 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.21,-44.66 [deg] galactic lon,lat of the burst
ECL_COORDS:       38.47, -2.79 [deg] ecliptic lon,lat of the burst
COMMENTS:        SWIFT-XRT Processed Image.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:39:05 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     258408,   Seg_Num: 0
GRB_RA:           37.014d {+02h 28m 03s} (J2000),
                  37.109d {+02h 28m 26s} (current),
                  36.339d {+02h 25m 21s} (1950)
GRB_DEC:         +11.697d {+11d 41' 51"} (J2000),
                 +11.729d {+11d 43' 44"} (current),
                 +11.474d {+11d 28' 27"} (1950)
GRB_DATE:        14129 TJD;    29 DOY;   07/01/29
GRB_TIME:        84910.26 SOD {23:35:10.26} UT
TRIGGER_INDEX:   20000
GRB_PHI:          79.34 [deg]
GRB_THETA:        29.05 [deg]
DELTA_TIME:      0.00 [sec]
TRIGGER_DUR:     64.000 [sec] 
SOLN_STATUS:     0x13
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    7.28 [sigma]
LC_URL:          sw00258408000msb.lc
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 26"}
SUN_DIST:         88.89 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.83d {+06h 03m 18s}  +28.46d {+28d 27' 52"}
MOON_DIST:        52.68 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.21,-44.65 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:       38.48, -2.78 [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 an image 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 = 267.07,-7.42 [deg].

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:39:36 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.993d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.685d {+11d 41' 05"} (J2000)
POINT_ROLL:      251.513d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85052.37 SOD {23:37:32.37} UT,   142.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.802
N_STARS:         7
X_OFFSET:        336 [pixels]
Y_OFFSET:        680 [pixels]
X_MAX:           1295 [pixels]
Y_MAX:           1639 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0142.fits
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 25"}
SUN_DIST:         88.87 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.83d {+06h 03m 20s}  +28.46d {+28d 27' 52"}
MOON_DIST:        52.71 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.20,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.46, -2.78 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:40:05 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.993d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.685d {+11d 41' 05"} (J2000)
POINT_ROLL:      251.513d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85052.37 SOD {23:37:32.37} UT,   142.1 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.802
N_STARS:         7
X_OFFSET:        336 [pixels]
Y_OFFSET:        680 [pixels]
X_MAX:           1295 [pixels]
Y_MAX:           1639 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0142.fits
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 25"}
SUN_DIST:         88.87 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.84d {+06h 03m 21s}  +28.46d {+28d 27' 51"}
MOON_DIST:        52.71 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.20,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.46, -2.78 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Source List.  
COMMENTS:        All 4 attachments are included.

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:42:36 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     9085451,   Seg_Num: 6
POINT_RA:          0.000d {+00h 00m 00s} (J2000)
POINT_DEC:        +0.000d {+00d 00' 00"} (J2000)
ROLL:            -214748.365d
IMG_START_DATE:  18706 TJD;   4606 DOY;   07/135087209/160610832
IMG_START_TIME:  28480.00 SOD {07:54:40.00} UT,   29969.7 [sec] since BAT Trigge
r Time
FILTER:          13, illegal value
EXPOSURE_ID:     -587149610
X_OFFSET:        1920 [pixels]
Y_OFFSET:        1004 [pixels]
WIDTH:           2 [pixels]
HEIGHT:          768 [pixels]
X_GRB_POS:       336
Y_GRB_POS:       31
BINNING_INDEX:   2
IM_URL:          sw00258408000msuni395396369.fits
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 23"}
SUN_DIST:         50.58 [deg]   Sun_angle= -3.2 [hr] (East of Sun)
MOON_POSTN:       90.86d {+06h 03m 27s}  +28.46d {+28d 27' 49"}
MOON_DIST:        90.49 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:       96.34,-60.19 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:        0.00,  0.00 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Image.  
COMMENTS:        WARNING: This Notice was received with 1 (or more) critical values out of range.  
COMMENTS:        This Notice is generated as a result of an uploaded TOO on an old GRB -- this is not a newly detected burst.  
COMMENTS:        And the IMG_START_DATE/TIME fields are the current epoch -- not the original detection.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Comm and.
COMMENTS:        The image has 4x4 binning (compression).  
COMMENTS:        This notice was forced out after watchdog timer expiring -- most likely due to missing packet(s);  
COMMENTS:        as a consequence some of the fields may be incoorect (eg TRIGGER_NUM,RA,DEC).

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:42:50 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     9085451,   Seg_Num: 6
POINT_RA:          0.000d {+00h 00m 00s} (J2000)
POINT_DEC:        +0.000d {+00d 00' 00"} (J2000)
ROLL:            -214748.365d
IMG_START_DATE:  18706 TJD;   4606 DOY;   07/135087209/160610832
IMG_START_TIME:  28480.00 SOD {07:54:40.00} UT,   29969.7 [sec] since BAT Trigge
r Time
FILTER:          13, illegal value
EXPOSURE_ID:     -587149610
X_OFFSET:        1920 [pixels]
Y_OFFSET:        1004 [pixels]
WIDTH:           2 [pixels]
HEIGHT:          768 [pixels]
X_GRB_POS:       336
Y_GRB_POS:       31
BINNING_INDEX:   2
IM_URL:          sw00258408000msuni395396369.fits
SUN_POSTN:       312.13d {+20h 48m 31s}  -17.82d {-17d 49' 23"}
SUN_DIST:         50.58 [deg]   Sun_angle= -3.2 [hr] (East of Sun)
MOON_POSTN:       90.87d {+06h 03m 28s}  +28.46d {+28d 27' 49"}
MOON_DIST:        90.49 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:       96.34,-60.19 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:        0.00,  0.00 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Processed Image.  
COMMENTS:        WARNING: This Notice was received with 1 (or more) critical values out of range.  
COMMENTS:        This Notice is generated as a result of an uploaded TOO on an old GRB -- this is not a newly detected burst.
COMMENTS:        And the IMG_START_DATE/TIME fields are the current epoch -- not the original detection.  
COMMENTS:        The GRB Position came from the Window Position in the Mode Comm and.  
COMMENTS:        The image has 4x4 binning (compression).  
COMMENTS:        All 4 attachments are included.  
COMMENTS:        This notice was forced out after watchdog timer expiring -- most likely due to missing packet(s);  
COMMENTS:        as a consequence some of the fields may be incoorect (eg TRIGGER_NUM,RA,DEC).

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:46:38 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
POINT_ROLL:      251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85157.62 SOD {23:39:17.62} UT,   247.4 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        2.806
N_STARS:         10
X_OFFSET:        388 [pixels]
Y_OFFSET:        581 [pixels]
X_MAX:           1347 [pixels]
Y_MAX:           1540 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0247.fits
SUN_POSTN:       312.13d {+20h 48m 32s}  -17.82d {-17d 49' 21"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.91d {+06h 03m 37s}  +28.46d {+28d 27' 45"}
MOON_DIST:        52.78 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:47:03 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
POINT_ROLL:      251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85157.62 SOD {23:39:17.62} UT,   247.4 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        2.806
N_STARS:         10
X_OFFSET:        388 [pixels]
Y_OFFSET:        581 [pixels]
X_MAX:           1347 [pixels]
Y_MAX:           1540 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0247.fits
SUN_POSTN:       312.13d {+20h 48m 32s}  -17.82d {-17d 49' 20"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.91d {+06h 03m 38s}  +28.46d {+28d 27' 44"}
MOON_DIST:        52.78 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 29 Jan 07 23:47:59 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
ROLL:            251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85157.62 SOD {23:39:17.62} UT,   247.4 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     191806759
X_OFFSET:        708 [pixels]
Y_OFFSET:        901 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       868
Y_GRB_POS:       1061
BINNING_INDEX:   1
IM_URL:          sw00258408000msuni0247.fits
SUN_POSTN:       312.13d {+20h 48m 32s}  -17.82d {-17d 49' 20"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.92d {+06h 03m 41s}  +28.46d {+28d 27' 43"}
MOON_DIST:        52.79 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 29 Jan 07 23:48:20 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
ROLL:            251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85157.62 SOD {23:39:17.62} UT,   247.4 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     191806759
X_OFFSET:        708 [pixels]
Y_OFFSET:        901 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       868
Y_GRB_POS:       1061
BINNING_INDEX:   1
IM_URL:          sw00258408000msuni0247.fits
SUN_POSTN:       312.13d {+20h 48m 32s}  -17.82d {-17d 49' 19"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.92d {+06h 03m 42s}  +28.46d {+28d 27' 43"}
MOON_DIST:        52.79 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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:        All 4 attachments are included.

GCN Circular #6053
O. Godet (U Leicester), D. N. Burrows (PSU), M. M. Chester (PSU), S. T. Holland (CRESST/GSFC/USRA), J. A. Kennea (PSU), C. B. Markwardt (GSFC/UMD), K. M. McLean (LANL/UTD), K. L. Page (U Leicester), D. M. Palmer (LANL), T. Sakamoto (NASA/ORAU), M. Stamatikos (NASA/ORAU), R. L. C. Starling (U Leicester), E. Troja (INAF-IASFPA), D. E. Vanden Berk (PSU) and S. D. Vergani (DIAS-DCU) report on behalf of the Swift Team:
At 23:35:10 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 070129 (trigger=258408). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 37.014, +11.697 which is
```
   RA(J2000) = 02h 28m 03s
   Dec(J2000) = +11d 41' 51"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows no obvious variation in the count rate, which is not uncommon for image triggers.
The XRT began observing the field at 23:37:23 UT, 134 seconds after the BAT trigger. XRT found a bright, fading, uncatalogued X-ray source located at RA, Dec 37.0033, +11.6852 which is
```
   RA(J2000)  =  02h 28m 00.7s
   Dec(J2000) =  11d 41' 06.7"
```
with an uncertainty of 4.7 arcseconds (radius, 90% containment). This location is 57 arcseconds from the BAT on-board position, within the BAT error circle. The initial flux in the 2.5s image was 3.3e-09 erg/cm2/s (0.2-10 keV).
UVOT took a finding chart exposure of 100 seconds with the White (160-650 nm) filter starting 143 seconds after the BAT trigger. No afterglow candidate has been found in the initial data products. The overlap of the sub-image and the XRT error circle is 100%. 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 0.14.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:51:35 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
POINT_ROLL:      251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85783.80 SOD {23:49:43.80} UT,   873.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.783
N_STARS:         10
X_OFFSET:        388 [pixels]
Y_OFFSET:        581 [pixels]
X_MAX:           1347 [pixels]
Y_MAX:           1540 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0873.fits
SUN_POSTN:       312.14d {+20h 48m 33s}  -17.82d {-17d 49' 17"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.96d {+06h 03m 50s}  +28.46d {+28d 27' 40"}
MOON_DIST:        52.82 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:52:03 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
POINT_ROLL:      251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85783.80 SOD {23:49:43.80} UT,   873.5 [sec] since BAT Trigger Time
FILTER:          10, White
BKG_MEAN:        2.783
N_STARS:         10
X_OFFSET:        388 [pixels]
Y_OFFSET:        581 [pixels]
X_MAX:           1347 [pixels]
Y_MAX:           1540 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0873.fits
SUN_POSTN:       312.14d {+20h 48m 33s}  -17.82d {-17d 49' 17"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.96d {+06h 03m 51s}  +28.46d {+28d 27' 39"}
MOON_DIST:        52.83 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 29 Jan 07 23:52:56 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
ROLL:            251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85783.80 SOD {23:49:43.80} UT,   873.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     191807385
X_OFFSET:        707 [pixels]
Y_OFFSET:        900 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       867
Y_GRB_POS:       1060
BINNING_INDEX:   1
IM_URL:          sw00258408000msuni0873.fits
SUN_POSTN:       312.14d {+20h 48m 33s}  -17.82d {-17d 49' 16"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.97d {+06h 03m 53s}  +28.46d {+28d 27' 38"}
MOON_DIST:        52.83 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 29 Jan 07 23:53:19 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.991d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
ROLL:            251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85783.80 SOD {23:49:43.80} UT,   873.5 [sec] since BAT Trigger Time
FILTER:          10, White
EXPOSURE_ID:     191807385
X_OFFSET:        707 [pixels]
Y_OFFSET:        900 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       867
Y_GRB_POS:       1060
BINNING_INDEX:   1
IM_URL:          sw00258408000msuni0873.fits
SUN_POSTN:       312.14d {+20h 48m 33s}  -17.82d {-17d 49' 16"}
SUN_DIST:         88.86 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       90.98d {+06h 03m 54s}  +28.46d {+28d 27' 38"}
MOON_DIST:        52.84 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:58:23 UT
NOTICE_TYPE:     Swift-UVOT Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.990d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
POINT_ROLL:      251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85889.45 SOD {23:51:29.45} UT,   979.2 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        2.745
N_STARS:         10
X_OFFSET:        388 [pixels]
Y_OFFSET:        581 [pixels]
X_MAX:           1347 [pixels]
Y_MAX:           1540 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0979.fits
SUN_POSTN:       312.14d {+20h 48m 34s}  -17.82d {-17d 49' 13"}
SUN_DIST:         88.85 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       91.03d {+06h 04m 07s}  +28.46d {+28d 27' 33"}
MOON_DIST:        52.88 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [deg] ecliptic lon,lat of the pointing direction
COMMENTS:        SWIFT-UVOT Source List.

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Mon 29 Jan 07 23:58:49 UT
NOTICE_TYPE:     Swift-UVOT Processed Source List
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.990d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
POINT_ROLL:      251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85889.45 SOD {23:51:29.45} UT,   979.2 [sec] since BAT Trigger Time
FILTER:          3, V
BKG_MEAN:        2.745
N_STARS:         10
X_OFFSET:        388 [pixels]
Y_OFFSET:        581 [pixels]
X_MAX:           1347 [pixels]
Y_MAX:           1540 [pixels]
DET_THRESH:      14
PHOTO_THRESH:    7
SL_URL:          sw00258408000msufc0979.fits
SUN_POSTN:       312.14d {+20h 48m 34s}  -17.82d {-17d 49' 12"}
SUN_DIST:         88.85 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       91.03d {+06h 04m 08s}  +28.46d {+28d 27' 32"}
MOON_DIST:        52.89 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 29 Jan 07 23:59:33 UT
NOTICE_TYPE:     Swift-UVOT Image
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.990d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
ROLL:            251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85889.45 SOD {23:51:29.45} UT,   979.2 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     191807491
X_OFFSET:        707 [pixels]
Y_OFFSET:        900 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       867
Y_GRB_POS:       1060
BINNING_INDEX:   1
IM_URL:          sw00258408000msuni0979.fits
SUN_POSTN:       312.14d {+20h 48m 34s}  -17.82d {-17d 49' 12"}
SUN_DIST:         88.85 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       91.04d {+06h 04m 10s}  +28.46d {+28d 27' 32"}
MOON_DIST:        52.89 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 29 Jan 07 23:59:54 UT
NOTICE_TYPE:     Swift-UVOT Processed Image
TRIGGER_NUM:     258408,   Seg_Num: 0
POINT_RA:         36.990d {+02h 27m 58s} (J2000)
POINT_DEC:       +11.684d {+11d 41' 02"} (J2000)
ROLL:            251.514d
IMG_START_DATE:  14129 TJD;    29 DOY;   07/01/29
IMG_START_TIME:  85889.45 SOD {23:51:29.45} UT,   979.2 [sec] since BAT Trigger Time
FILTER:          3, V
EXPOSURE_ID:     191807491
X_OFFSET:        707 [pixels]
Y_OFFSET:        900 [pixels]
WIDTH:           160 [pixels]
HEIGHT:          160 [pixels]
X_GRB_POS:       867
Y_GRB_POS:       1060
BINNING_INDEX:   1
IM_URL:          sw00258408000msuni0979.fits
SUN_POSTN:       312.14d {+20h 48m 34s}  -17.82d {-17d 49' 12"}
SUN_DIST:         88.85 [deg]   Sun_angle= -5.7 [hr] (East of Sun)
MOON_POSTN:       91.04d {+06h 04m 11s}  +28.46d {+28d 27' 31"}
MOON_DIST:        52.90 [deg]
MOON_ILLUM:      89 [%]
GAL_COORDS:      157.19,-44.67 [deg] galactic lon,lat of the pointing direction
ECL_COORDS:       38.45, -2.78 [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 #6055
Daniele Malesani (Dark, NBI), Pall Jakobsson (Univ. Hertfordshire), Paul M. Vreeswijk (ESO), Anreas O. Jaunsen (Univ. Oslo), and D. Alexander Kann (TLS Tautenburg), report on behalf of a larger collaboration:
Using FORS2 on the ESO Very Large Telescope, we have imaged the GRB 070129 field (Godet et al., GCN 6053) on Jan 30.07 UT (2.15 hours post-burst). Inside the refined XRT circle (Butler 2006, AJ, in press, astro-ph/0611031; DSS catalog; version 0.2) we find an R ~ 21.3 mag source. At present we cannot assess the source variability. It is possibly extended but not readily visible in the DSS.
Its coordinates are:
```
R.A.(J2000) =  02:28:00.94
Dec(J2000)  =  11:41:04.0
```
with a error of 0.2" in each coordinate.
An image of the field is shown at:
http://star-www.herts.ac.uk/~palli/GRB070129.jpg
We thank the Paranal staff, especially Elena Valenti, Paul Lynam and Leonardo Vanzi, for excellent support.

Declination corrected by editor.
GCN Circular #6056
O. Godet, K. Page, P. Evans, J. Osborne (U. Leicester), D. N. Burrows (PSU) report on behalf of the Swift XRT team:
We analysed the first 5 orbits of XRT data from GRB 070129 (from T0+140s to T0+24749s). An 11ks photon counting (PC) mode image provides a refined XRT position:
```
RA(J2000) = 02h 28m 00.83s
Dec(J2000) = +11d 41' 05.1''
```
with an uncertainty of 3.6 arcsec (90% containment). This position is within the BAT error circle and is 2.5 arcsec away from the on-board XRT position quoted in Godet et al. (GCN 6053) and includes the latest XRT boresight correction. We note that our error circle includes the position of the source reported in Malesani et al. 2007 (GCN 070129).
The BAT triggered on a precursor and saw the main burst around T0+380s. The XRT started to observe the field 140s after the BAT trigger (T0). The X-ray light curve shows the main burst consisting of several X-ray flares from T0+140s to T0+700s, followed by a steep decay to T0+1200s and then a flatter decay (so far to T0+24749s). This flatter decay can be fitted by a single power-law with a decay slope of alpha = 0.33 +0.09/-0.10.
The Windowed Timing (WT) data correspond to the main burst, which shows strong spectral evolution. An absorbed power-law fit of the WT data (first orbit) from T+140s to T+792s gives a photon index of 1.81+/-0.03 and an absorption value of (2.1 +/-0.1)e21 cm**-2, compared to the Galactic value of 8.4e20 cm**-2 in the burst direction. The error are given at a 90% confidence level. The spectrum of the PC data from T0 +795s to T0+24749s can be fit by an absorbed power-law with Gamma = 2.39 +0.22/-0.19 and an absorption value of (1.6 +/-0.5)e21 cm**-2.
If the burst continues decaying at the current rate (alpha = 0.33) we estimate an XRT count rate of 0.042 counts/s at T0 + 24hr, which corresponds to an observed 0.3-10.keV flux of 2.5e-12 ergs cm**-2 s**-1 and an unabsorbed flux of 2.9e-12 ergs cm**-2 s**-1.
This circular is an official product of the Swift XRT Team.
GCN Circular #6057
L.P. Xin, M.Zhai, Y.L. Qiu, J.Y. Wei, J.Y. Hu, J.S. Deng, Y. Urata, J.Z. Li and W.K. Zheng on behalf of EAFON report:
We have imaged the field of GRB 070129(Godet et al. GCN6053) with the TNT 0.8m telescope at Xinglong Observatory 11.98 hours after the burst. Totally 10*300s R band images were obtained. The source identified by Daniele Malesani et al.(GCN 6055,we assume the Dec coordinate reported in this GCN is Dec(J2000) = +11:41:04.0) was not seen in our combined image, and no new source was find in the refined XRT circle,the 3-sigma limit is ~21.1 derieved form USNO A-2.0.
This message may be cited.
GCN Circular #6058
H. Krimm (GSFC/USRA), L. Barbier (GSFC), S. D. Barthelmy (GSFC), J. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC), O. Godet (U Leicester), C. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC) on behalf of the Swift-BAT team:
Using the data set from T-239.0 to T+963.1 sec from the recent telemetry downlink, we report further analysis of BAT GRB 070129 (trigger #258408) (Godet, et al., GCN Circ. 6053). The BAT ground-calculated position is RA, Dec = 37.001, 11.730 deg which is
```
    RA(J2000) = 2h 28m 0.3s
    Dec(J2000) = +11d 43' 46.7"
```
with an uncertainty of 2.6 arcmin, (radius, sys+stat, 90% containment). The partial coding was 41%.
The mask-tagged light curve showed that the trigger was on a precursor to the main burst which started at approximately T+200 sec, coincident with the detections reported in the XRT (Godet et al, GCN 6056). Emission started at ~T-180 sec, then continued through a series of peaks out to ~T+160 sec, where there was a dip in the light curve preceding the main peak of the prompt emission which lasted until T+380 sec. This was followed by some possible low level emission out to ~T+600 sec. T90 (15-350 keV) is 460 +- 20 sec (estimated error including systematics).
The time-averaged spectrum from T-125.0 to T+373.9 is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 2.05 +- 0.16. The fluence in the 15-150 keV band is 3.1 +- 0.3 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T+361.46 sec in the 15-150 keV band is 0.6 +- 0.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
GCN Circular #6062
T. Ishimura, Y. Yatsu, T. Shimokawabe, N. Vasquez, and N. Kawai (Tokyo Tech) report on behalf of the MITSuME collaboration:
We observed the error box of GRB070129 (Godet et al., GCN 6053) with the 3-color 50cm MITSuME Telescope at Akeno, Japan starting at 9:44:12 UT, 10.1 hours after the trigger. In the co-added images of Ic, Rc, and g' bands, we did not detect the afterglow . The 3-sigma limiting magnitudes based on USNO-B1.0 (I-band) and NOMAD (R-band,g'-band) stars are following.
```
Filter   start time   end time    Exp(s)    Mag (3-sigma upper limit)
-----------------------------------------------------------------
Ic        9:44:12      10:22:57     60s * 25       18.4 
Rc        9:44:12      10:22:57     60s * 25       19.0 
g'        9:44:12      10:22:57     60s * 25	   19.4
-----------------------------------------------------------------
```
GCN Circular #6065
G. Vianello (INAF, IASF-Milano & Univ. dell'Insubria), A. Tiengo, S. Mereghetti (INAF, IASF-Milano) report:
We discovered a faint dust scattering halo in the Swift XRT Photon Counting mode data of GRB 070129. The halo consists of a partial ring of radius ~2 arcmin located to the North-West of the GRB afterglow position.
Analysis of the dynamical image (see Tiengo & Mereghetti 2006 A&A 449, 203) covering the period from T0+4700s to T0+7300s (where T0 is the BAT trigger time, as reported in GCN 6053) indicates that the halo is expanding and leads to an estimate of ~300 pc for the distance of the dust layer responsible for the scattering.
Dust maps (Schlegel, Finkbeiner, & Davis 1998, ApJ, 500, 525) show a diffuse structure in the direction indicated by the partial ring, and a total Galactic extinction of A_v~0.4.

GCN Circular #6066
M. M. Chester (PSU) and O. Godet (U. Leicester) report on behalf of the Swift UVOT team:
The Swift/UVOT observed the field of GRB 070129 starting 124 s after the BAT trigger (Godet et al. 2007, GCN Circ. 6053). We do not find any source, in any of the UVOT observations, inside the refined XRT error circle (Godet et al., 2007 GCN Circ. 6056).
The 3-sigma upper limits for detecting a source inside the XRT error circle in the V-band settling image, the finding-chart exposures, and the co-added frames are:

Filter         T_start   T_stop    Exp(s)    Mag (3-sigma UL)
-----------------------------------------------------------------
V settling     124         133         9     17.3
V finding      247         647       400     19.2
V finding      979        1379       400     19.8
White finding  142         242       100     19.7
White finding  873         973       100     20.0

V              124       47339      3046     20.7
B              726       53670      3073     21.4
U              701       53414      5398     21.3
UVW1           678       52501      4895     22.2
UVM2           653       58021      3956     22.0
UVW2           754       46426      2239     22.0
White          143       13183      1460     20.8
-----------------------------------------------------------------

The values quoted above are not corrected for the expected Galactic extinction corresponding to a reddening of E_{B-V} = 0.14 mag towards the direction of the burst (Schlegel et al. 1998).

GCN Circular #6070
D. Malesani (Dark/NBI), P.M. Vreeswijk (ESO), P. Jakobsson (Univ. Hertfordshire), J.P.U. Fynbo (Dark/NBI), D.A. Kann (TLS Tautenburg), G. Micheva (Stockolm Obs.), J. Holopainen (Turku Univ.), report on behalf of a larger collaboration:
We have observed the field of GRB 070129 (Godet et al., GCN 6053) with the NOT telescope equipped with StanCam. R-band observations were carried out starting on 2007 Feb 2.822 UT (mean time 2.828 UT, i.e. 3.84 days after the GRB).
The object seen in our VLT images and lying inside the XRT error circle (Malesani et al., GCN 6055) has clearly faded (by at least 2 mag). It is no longer visible in the new images. It is thus the afterglow of GRB 070129. Its location is consistent with the refined XRT position (Godet et al., GCN 6056).
We also report the object coordinates (J2000):
```
RA   = 02:28:00.94
Dec = +11:41:04.0
```
In our previous circular (GCN 6055), the declination was incorrectly reported as being "-11", as first pointed out by Xin et al. (GCN 6057). We apologize for any inconvenience this may have caused.
GCN Report 30.1
GCN_Report 30.1 has been posted: http://gcn.gsfc.nasa.gov/reports/report_30_1.pdf by O. Godet at U. Leicester titled: "Swift Observations of GRB 070129"
GCN Circular #6097
J. P. Halpern, N. Mirabal (Columbia U.), & J. R. Thorstensen (Dartmouth) report on behalf of the MDM Observatory GRB follow-up team:
"We observed the field of GRB 070129 (Godet et al., GCNs 6053, 6056) in the I-band using the MDM 2.4m telescope on Jan. 30 from 02:14-02:43 UT, or 2.65-3.14 hr after the burst. The optical transient (OT) discovered with the VLT at 2.15 hr post-burst (Malesani et al., GCNs 6055, 6070) with R~21.3 is also present in our images, with magnitude I=20.60+/-0.04. The latter is referenced to a star 27" west of the OT that has I=17.57 in the USNO B1.0 catalog. An image is posted at
http://www.astro.columbia.edu/~jules/grb/070129
This message may be cited."
0707.2343from 16 Jul 2007
Vianello: Dust-scattered X-ray halos around two Swift gamma-ray bursts: GRB 061019 and GRB 070129
Abstract: Two new X-ray expanding rings were detected by the Swift XRT instrument during early follow-up observations of GRB 061019 and GRB 070129, increasing to 5 the number of dust scattering X-ray halos observed around GRBs. Although these two halos were particularly faint, a sensitive analysis can be performed optimizing for the Swift satellite the method developed by Tiengo & Mereghetti (2006) to analyze dust scattering rings observed with XMM-Newton. In the case of GRB 061019, a known giant molecular cloud is identified as the responsible for the scattering process and its distance is accurately measured (d=940 +/- 40 pc) through the dynamics of the expanding ring. In the second case, XRT observed both the main peak of the prompt emission of GRB 070129 and the scattering halo, but the small number of detected halo photons prevents us to discriminate between different dust models.
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]