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

GRB 120811C

Redshift:
2.671 (GTC: absorption)
2.67 {NOT: absorption)
Host Galaxy:
Other Observatory Detections:
MASTER II (Amur), RTT150, GTC (10.4m), NOT (2.5m), MASTER II (Tunka), Fermi (GBM), ISON-NM (0.45m), ISON-Kitab (0.4m)

Time: 15:34:52
Trigger Number: 530689
Burst Advocate: Brad Barlow

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)
199.690
13:18:45.6
62.297
62:17:49.2
1.0 26.8 30 (3) 4.1 (0.2) 1.40, CPL (0.30)

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)
13:18:43.94 62:18:02.1 1.4 68.67 297 0.11858981 0.04829129 -4.617 1.92121 8.26457

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
13:18:43.82 62:18:02.8 0.52 76 V+18.49 B=18.95
U=18.61
UVW1>20.0
UVM2>20.5
UVW2>19.7
White=18.59

a arcsec; b seconds

Comments:

References:

BAT: GCN 13622; GCN 13634
XRT: GCN 13622; GCN 13625; GCN 13630; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 13622; GCN 13629
Radio:
Redshift: GCN 13628 (GTC); GCN 13632 (NOT)
Host:
Other: GCN Report 378.1

BAT Light Curve:

BAT Light Curve for GRBblc/120811C.png