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GRB 070429B

Time: 03:09:04
Trigger Number: 277582
Burst Advocate: Craig Markwardt

BAT Data:

RA: a 328.006
21:52:01.4
Dec: a -38.857
-38:51:25.2
90% Error Radius: b 1.8
T90: c 0.470
Fluence: d 0.63 (0.10)
1s Peak Photon Flux: e 1.76 (0.24)
Photon Index: f 1.72, PL (0.23)

90% error in parentheses,
a J2000; b arcmin; c seconds; d 10-7 erg/cm2 (15-150 keV); e ph/cm2/sec (15-150 keV); f PL = simple power-law, CPL = cutoff power-law (15-150 keV)

BAT Light Curve:

BAT Light Curve for GRB 070429B

XRT Data:

RA: a 21:52:03.81
Dec: a -38:49:42.0
90% Error Radius: b 2.4
Time to First Observation: c 256.26
Early Flux: d 0.699
11 Hour Flux: d 0.0023801462
24 Hour Flux: d 0.0011558538
Initial Temporal Index: -0.9259
Spectral Index (Gamma): 3.00655
Column Density (NH): e 6.34239

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.
a J2000; b arcsec; c seconds; d 10-11 erg/cm2/s (0.3-10 keV); e 1021 cm-2

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

UVOT Data:

RA: a 21:52:03.68
Dec: a -38:49:43.6
90% Error Radius: b 0.6
Time to First Observation: c 230
V Magnitude: V=19.3
Other Filter Magnitudes: B=20.5
U>21.8
UVW1>22.4
UVM2>22.0
UVW2>22.4
White=21.6

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
0.904 (Keck I: from probable host)
Host Galaxy:
r=23.18, possible host (Gemini South)
2 host candidates (VLT)
g=24.79,R=23.24, probable host (Keck I)
Other Observatory Detections:

Comments:

165 sec slew delay (Earth-limb constraint)
UVOT: possible detection

References:

BAT: GCN 6358; GCN 6365; arXiv:0707.4626
XRT: GCN 6358; GCN 6360; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 6358; GCN 6366; GCN 7145
Radio:
Redshift: GCN 7140 (Keck I)
Host: GCN 6368; GCN 6370 (Gemini South); GCN 6372 (VLT); GCN 7140 (Keck I)
Other: GCN Report 51.1