Menu

GRB 250725A

Time: 01:51:36
Trigger Number: 1336720
Burst Advocate: Phil Evans

BAT Data:

RA: a 35.459
02:21:50.2
Dec: a -82.786
-82:47:09.6
90% Error Radius: b 1.0
T90: c 9.58
Fluence: d 50 (1)
1s Peak Photon Flux: e 12.5 (0.6)
Photon Index: f 0.81, CPL (0.19)

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)

XRT Data:

RA: a 02:21:55.02
Dec: a -82:47:28.4
90% Error Radius: b 2
Time to First Observation: c 740.43
Early Flux: d n/a
11 Hour Flux: d 0.092658163
24 Hour Flux: d 0.0202992712
Initial Temporal Index: -1.133
Spectral Index (Gamma): 1.732008668
Column Density (NH): e 27.92674726

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 n/a
Dec: a n/a
90% Error Radius: b n/a
Time to First Observation: c 880
V Magnitude: V>19.6
Other Filter Magnitudes: B>20.1
U>20.1
UVW1>19.6
UW2>19.5
White>21.2

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
5.26 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
Fermi (GBM & LAT), MASTER-SAAO, MASTER-OAFA, SVOM (VT &GRM), BOOTES-7 (0.6m), VLT, Konus-Wind, PRIME, AstroSat CZTI

Comments:

References:

BAT: GCN 41152; GCN 41167
XRT: GCN 41152; GCN 41153; GCN 41170; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 41152; GCN 41162
Radio:
Redshift: GCN 41160 (VLT)
Host:
Other: