The Swift Gamma-Ray Burst Mission Italian site U.K. site

GRB 120815A

Redshift:
2.358 (VLT/X-shooter: absorption)
Host Galaxy:
Other Observatory Detections:
MPG/ESO (2.2m), VLT/X-shooter

Time: 02:13:58
Trigger Number: 531003
Burst Advocate: Claudio Pagani

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)
273.976
18:15:54.2
-52.125
-52:07:30.0
1.8 9.7 4.9 (0.7) 2.2 (0.3) 2.29, PL (0.23)

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)
18:15:49.92 -52:07:53.1 1.4 2686.79 n/a 0.1638908 0.0798164 -0.9222 1.84293 5.92144

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
18:15:49.88 -52:07:52.1 0.6 2672 V=19.34 B=20.11
U>20.5
UVW1>20.2
UVM2>19.9
UVW2>20.3
White=19.94

a arcsec; b seconds

Comments:

Due to an observing constraint, Swift did not slew until T0+40.6 minutes.

References:

BAT: GCN 13645; GCN 13652
XRT: GCN 13647; GCN 13650; GCN 13653; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13666
Radio:
Redshift: GCN 13649 (VLT/X-shooter)
Host:
Other: GCN Report 387.1

BAT Light Curve:

BAT Light Curve for GRBblc/120815A.png