Gamma-ray Burst 100119A

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 19 Jan 10 18:26:00 UT
NOTICE_TYPE:     Swift-BAT GRB Position
TRIGGER_NUM:     383063,   Seg_Num: 0
GRB_RA:          299.327d {+19h 57m 18s} (J2000),
                 299.520d {+19h 58m 05s} (current),
                 298.360d {+19h 53m 26s} (1950)
GRB_DEC:         -53.160d {-53d 09' 36"} (J2000),
                 -53.133d {-53d 07' 57"} (current),
                 -53.295d {-53d 17' 39"} (1950)
GRB_ERROR:       3.00 [arcmin radius, statistical only]
GRB_INTEN:       14910 [cnts]    Image_Peak=284 [image_cnts]
TRIGGER_DUR:     2.048 [sec] 
TRIGGER_INDEX:   486     E_range: 50-350 keV
BKG_INTEN:       110638 [cnts]
BKG_TIME:        66290.54 SOD {18:24:50.54} UT
BKG_DUR:         24 [sec]
GRB_DATE:        15215 TJD;    19 DOY;   10/01/19
GRB_TIME:        66325.74 SOD {18:25:25.74} UT
GRB_PHI:         -134.67 [deg]
GRB_THETA:        48.77 [deg]
SOLN_STATUS:     0x3
RATE_SIGNIF:     40.89 [sigma]
IMAGE_SIGNIF:    9.61 [sigma]
MERIT_PARAMS:     +1  +0  +0  +1  +3  +0 -100  +0 -83  +0 
SUN_POSTN:       301.74d {+20h 06m 56s}  -20.24d {-20d 14' 19"}
SUN_DIST:         32.94 [deg]   Sun_angle= 0.1 [hr] (West of Sun)
MOON_POSTN:      347.12d {+23h 08m 29s}   -0.67d {-00d 40' 10"}
MOON_DIST:        65.55 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      345.10,-31.08 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      290.20,-31.76 [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 = 8.97,-19.63 [deg].

red DSS finding chart ps-file

GCN Notice

TITLE:          GCN/INTEGRAL NOTICE
NOTICE_DATE:    Tue 19 Jan 10 18:26:23 UT
NOTICE_TYPE:    INTEGRAL SPI ACS Trigger
TRIGGER_NUM:    5979,   Sub_Num: 0
GRB_INTEN:      9.13 [sigma]
GRB_TIME:       66309.83 SOD {18:25:09.83} UT
GRB_DATE:       15215 TJD;    19 DOY;   10/01/19
COMMENTS:       INTEGRAL SPI_ACS GRB Trigger.
COMMENTS:
COMMENTS:        NOTE: This SPIACS event is temporally(16.0<100sec) coincident with the SWIFT_BAT event (trignum=383063).
COMMENTS:
+ftp://isdcarc.unige.ch/arc/FTP/ibas/spiacs/2010-01/2010-01-19T18-25-09.7348-21359-00007-0.lc

GCN NOTICE

TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Tue 19 Jan 10 18:32:32 UT
NOTICE_TYPE:     Swift-BAT GRB Lightcurve
TRIGGER_NUM:     1076704,   Seg_Num: 66
GRB_RA:          299.327d {+19h 57m 18s} (J2000),
                 299.520d {+19h 58m 05s} (current),
                 298.360d {+19h 53m 26s} (1950)
GRB_DEC:         -53.160d {-53d 09' 36"} (J2000),
                 -53.133d {-53d 07' 57"} (current),
                 -53.295d {-53d 17' 39"} (1950)
GRB_DATE:        15215 TJD;    19 DOY;   10/01/19
GRB_TIME:        66325.74 SOD {18:25:25.74} UT
TRIGGER_INDEX:   486
GRB_PHI:         -134.67 [deg]
GRB_THETA:        48.77 [deg]
DELTA_TIME:      -22010.00 [sec]
TRIGGER_DUR:     2.048 [sec] 
SOLN_STATUS:     0x3
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    0.00 [sigma]
LC_URL:          sw00383063000msb.lc
SUN_POSTN:       301.74d {+20h 06m 58s}  -20.24d {-20d 14' 16"}
SUN_DIST:         32.94 [deg]   Sun_angle= 0.1 [hr] (West of Sun)
MOON_POSTN:      347.17d {+23h 08m 40s}   -0.65d {-00d 38' 45"}
MOON_DIST:        65.60 [deg]
MOON_ILLUM:      17 [%]
GAL_COORDS:      345.10,-31.08 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      290.20,-31.76 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT-BAT GRB Lightcurve.  
COMMENTS:           
COMMENTS:        WARNING: No BAT_Position TDRSS message was received for this trigger_number!  
COMMENTS:           
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 = 8.97,-19.63 [deg].  
COMMENTS:        The 3rd packet (of 3) was missing in the lightcurve data stream.

GCN Circular #10348
V. Mangano (INAF-IASFPA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), D. N. Burrows (PSU), S. Campana (INAF-OAB), P.A. Curran (MSSL-UCL), P. A. Evans (U Leicester), N. Gehrels (NASA/GSFC), S. T. Holland (CRESST/USRA/GSFC), E. A. Hoversten (PSU), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), K. L. Page (U Leicester), J. L. Racusin (NASA/GSFC), T. Sakamoto (NASA/UMBC), M. H. Siegel (PSU), M. C. Stroh (PSU), T. N. Ukwatta (GSFC/GWU) and L. Vetere (PSU) report on behalf of the Swift Team:
At 18:25:25 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 100119A (trigger=383063). Swift did not slew because of a Sun observing constraint. The BAT on-board calculated location is RA, Dec 299.327, -53.160 which is
```
   RA(J2000)  =  19h 57m 18s
   Dec(J2000) = -53d 09' 36"
```
with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows multiple overlapping peaks with a duration of about 25 sec. The peak count rate was ~6000 counts/sec (15-350 keV), at T+5 sec.
Due to an observing constraint, Swift cannot slew to the BAT position. There will thus be no XRT or UVOT data for this trigger. No observations with XRT or UVOT will be possible for approximately the next 26 days.
Burst Advocate for this burst is V. Mangano (vanessa AT ifc.inaf.it). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)
GCN Circular #10351
D. M. Palmer (LANL), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), V. Mangano (INAF-IASFPA), C. B. Markwardt (GSFC/UMD), T. Sakamoto (GSFC/UMBC), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team):
Using the data set from T-60 to T+243 sec from the recent telemetry downlink, we report further analysis of BAT GRB 100119A (trigger #383063) (Mangano, et al., GCN Circ. 10348). The BAT ground-calculated position is RA, Dec = 299.308, -53.149 deg which is
```
   RA(J2000)  =  19h 57m 14.0s 
   Dec(J2000) = -53d 08' 56.7" 
```
with an uncertainty of 1.3 arcmin, (radius, sys+stat, 90% containment). The partial coding was 7%.
The mask-weighted light curve shows several overlapping peaks starting at ~T-30 sec, peaking at ~T+3 sec, and ending at ~T+30 sec. T90 (15-350 keV) is 23.8 +- 4 sec (estimated error including systematics).
The time-averaged spectrum from T-15.8 to T+15.5 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.01 +- 0.06. The fluence in the 15-150 keV band is 1.4 +- 0.0 x 10^-5 erg/cm2. The 1-sec peak photon flux measured from T+2.12 sec in the 15-150 keV band is 7.7 +- 1.0 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/383063/BA/
GCN Circular #10356
S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, report:
The long GRB 100119A (Swift-BAT trigger=383063: Mangano et al., GCN 10348) triggered Konus-Wind at T0=66306.167s UT (18:25:06.167)
The burst light curve shows a complex structure with a total duration of ~45 s. The emission is seen up to several MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB100119_T66306/
As observed by Konus-Wind the burst had a fluence of 6.1(+/-0.3)x10-5 erg/cm2, and a 256-ms peak flux measured from T0+18.176s of 4.3(+/-0.3)x10-6 erg/cm2/s (both in the 20 keV - 2 MeV energy range).
The time-integrated spectrum of the burst (from T0 to T0+37.376 s) is well be fitted in the 20 keV - 10 MeV range by a power law with GRB (Band) model, for which: the low-energy photon index alpha = -0.73 (-0.08,+0.09), the high energy photon index beta = -2.8(-1.9, +0.4), the peak energy Ep = 377(-35, +35)keV (chi2 = 66/97 dof).
The spectrum of the most intense part of the burst (measured from T0+15.360 to T0+21.504 s) is well fitted in the 20 keV - 10 MeV range by a power law with exponential cutoff model, for which alpha = -0.52(+/-0.11), and Ep = 387(-32, +37) keV (chi2 = 97/96 dof).
All the quoted results are preliminary. All the quoted errors are at the 90% confidence level.
GCN Circular #10357
N. Vasquez (Tokyo Tech.), K. Yamaoka (Aoyama Gakuin U.), T. Uehara, Y.Hanabata, T. Takahashi, Y. Fukazawa (Hiroshima U.) S. Sugita (Nagoya U), M. Tashiro, Y. Terada, A. Endo, K. Onda, T. Sugasahara, W. Iwakiri (Saitama U.), M. Ohno, M. Suzuki, M. Kokubun, T. Takahashi (ISAS/JAXA), Y. E. Nakagawa, T. Tamagawa (RIKEN), N. Ohmori, A. Daikyuji, E. Sonoda, K. Kono, H. Hayashi, K. Noda, Y. Nishioka, M. Yamauchi (Univ. of Miyazaki), Y. Urata, H. M. Lin (NCU), T. Enoto, K. Nakazawa, K. Makishima (Univ. of Tokyo), S. Hong (Nihon U.), on behalf of the Suzaku WAM team, report:
The long GRB 100119A (Swift BAT trigger #383063; Mangano et al. GCN 10348) triggered the Suzaku Wide-band All-sky Monitor (WAM) which covers an energy range of 50 keV - 5 MeV at 18:25:09.630 UT (=T0).
The observed light curve shows a complicated structure, with overlapping pulses. The duration (T90) was about 24 seconds. The fluence in 100 - 1000 keV band is 4.55(-0.21, +0.17) x 10^-6 erg/cm2 with a 1-s peak flux measured from T0+18.5 sec of 6.94 (-0.63, +0.32) photons/cm^2/s in the same energy range.
```
Preliminary result shows that the time-averaged spectrum from
T0-3.5 s to T0+37.5 s is well fitted by a cut off power-law model:
 dN/dE ~  E^{-alpha} * exp(-(2-alpha)*E/Epeak) with
 alpha      1.17 (-0.27, +0.26), and
 Epeak      510 (-45, +54) keV (chi^2/d.o.f. = 26.7/24).
```
Due to the brightness of this burst, a 3% systematic error was added for low energy channels. All the quoted errors are at 90% confidence level.
The light curves of this event are available at the following URL: http://www.astro.isas.jaxa.jp/suzaku/HXD-WAM/WAM-GRB/grb/trig/grb_table.html

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Jochen Greiner, last update: 19-Jan-2010 [Disclaimer]