GRB 120404A
Redshift:
Other Observatory Detections:
2.876 (Gemini-North: absorption)Host Galaxy:
~2.88 (VLT/UT2: absorption)
Other Observatory Detections:
Faulkes North (2m), Gemini-North, TNT, MITSuME (50cm), Murikabushi (1m), VLT/UT2, Mt John University Observatory (61cm), MPG/ESO (2.2m), MASTER II, EVLA @ 22 GHz, ARIES (1.04m), ISON-Blagoveschensk Observatory (0.25m and 0.4m), Sayan Observatory
Time: 12:51:02
Trigger Number: 519380
Burst Advocate: Giulia Stratta
Burst Alert Telescope (BAT):
| RA (J2000) |
Dec (J2000) |
90% Error a Radius |
T90 b | Fluence c (15-150 keV) |
1-sec Peak d Photon Flux (15-150 keV) |
Photon Index e (15-150 keV) |
|---|---|---|---|---|---|---|
| 235.002 15:40:00.5 |
12.883 12:52:58.8 |
1.2 | 38.7 | 16 (1) | 1.2 (0.2) | 1.85, PL (0.13) |
90% error in parentheses,
a arcmin; b seconds; c 10-7 erg/cm2; d ph/cm2/sec; e PL = simple power-law, CPL = cutoff power-law
X-Ray Telescope (XRT):
| RA (J2000) |
Dec (J2000) |
90% Error a Radius |
Time to First b Observation |
Early Flux c (0.3-10 keV) |
11 Hour Flux c (0.3-10 keV) |
24 Hour Flux c (0.3-10 keV) |
Initial d LC Index |
Spectral Index (Gamma) |
Column e Density (NH) |
|---|---|---|---|---|---|---|---|---|---|
| 15:40:02.34 | 12:53:05.9 | 1.4 | 130.02 | 73.4 | 0.021299642 | 0.0052762 | -2.17 | 1.89579 | 5.12667 |
a arcsec; b seconds; c 10-11 erg/cm2/s; d temporal; e 1021 cm-2
Note: Please be aware that only the very basic temporal and spectral quantities are reported here. You are strongly encouraged to see the referenced GCN circulars for full details.
UltraViolet/Optical Telescope (UVOT):
| RA (J2000) |
Dec (J2000) |
90% Error a Radius |
Time to First b Observation |
Magnitude | Other Filter Magnitudes |
|---|---|---|---|---|---|
| 15:40:02.29 | 12:53:06.3 | 0.65 | 138 | V=17.69 | B=19.22 U=19.90 UVW1>20.3 UVM2>21.5 UVW2>22.1 White=19.43 |
a arcsec; b seconds
Comments:
References:
BAT: GCN 13208; GCN 13220
XRT: GCN 13208; GCN 13218; GCN 13222; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13208; GCN 13226
Radio: GCN 13231 (EVLA)
Redshift: GCN 13213 (Gemini-North); GCN 13217 (Gemini-North); GCN 13227 (VLT/UT2)
Host:
Other: GCN Report 372.1
BAT Light Curve:
