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GRB 120804A

Redshift:
Host Galaxy:
Gemini-North: likely host
Other Observatory Detections:
Gemini-North, EVLA @ 5.8 GHz, Konus-Wind, Chandra, XMM-Newton

Time: 00:54:14
Trigger Number: 529686
Burst Advocate: A. Lien

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)
233.951
15:35:48.2
-28.768
-28:46:04.8
1.0 0.81 8.8 (0.5) 10.8 (0.6) 1.34, PL (0.08)

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)
15:35:47.51 -28:46:56.9 1.4 93.64 n/a 0.033590955 0.014205566 -1.103 2.05668 4.05642

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.

» XRT GRB Live Catalogue
» XRT Light Curves
» XRT Spectra

UltraViolet/Optical Telescope (UVOT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
Time to First b
Observation
Magnitude Other Filter
Magnitudes
n/a n/a n/a 96 V>20.6 B>20.9
U>21.3
UVW1>20.3
UVM2>21.3
UVW2>21.0
White>22.0

a arcsec; b seconds

Comments:

UVOT: no detection

References:

BAT: GCN 13573; GCN 13581; GCN 13614
XRT: GCN 13573; GCN 13577; GCN 13580; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13573; GCN 13582
Radio: GCN 13587 (EVLA)
Redshift:
Host: GCN 13606 (Gemini-North)
Other: GCN Report 391.1

BAT Light Curve:

BAT Light Curve for GRBblc/120804A.png