| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB080913735 |
|
| T0 |
17:38:31 UTC |
GCN_circulars,Fermi GBM Det |
| ra |
45.1000° |
Fermi_GBM |
| decl |
-3.0000° |
Fermi_GBM |
| pos_error |
4.35e+00° |
Fermi_GBM |
| T90 |
41.217 s |
Fermi_GBM |
| T90_error |
7.281 s |
Fermi_GBM |
| T90_start |
17:38:31.163 UTC |
Fermi_GBM |
| fluence |
3.54e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
8.67e-08 erg/cm² |
Fermi_GBM |
| T100 |
41.38 s |
|
| GBM_located |
True |
|
| mjd |
54722.735081018516 |
GCN_circulars,Fermi GBM Det |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB080913735 |
| trigger_name |
bn080913735 |
| ra |
45.1000° |
| decl |
-3.0000° |
| pos_error |
4.35e+00° |
| datum |
2008-09-13 |
| t_trigger |
17:38:31.419 UTC |
| T90 |
41.217 s |
| T90_error |
7.281 s |
| T90_start |
17:38:31.163 UTC |
| fluence |
3.54e-06 erg/cm² |
| fluence_error |
8.67e-08 erg/cm² |
| flux_1024 |
3.40e+00 erg/cm²/s |
| flux_1024_error |
1.82e-01 erg/cm²/s |
| flux_1024_time |
1.64e+01 erg/cm²/s |
| flux_64 |
5.99e+00 erg/cm²/s |
| flux_64_error |
8.83e-01 erg/cm²/s |
| GCN 8280 table |
|---|
| GRB_name |
GRB080913B |
| GCN_number |
8280 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
17:38:31 UTC |
| ra |
46.3000° |
| decl |
-4.6000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 8280
SUBJECT: GRB 080913B: Fermi GBM detection
DATE: 08/09/21 15:32:20 GMT
FROM: Bill Paciesas at UAH
Bill Paciesas (UAH), Alexander van der Horst (NASA/MSFC) and Adam Goldstein
(UAH), report on behalf of the Fermi Gamma-ray Burst Monitor Team:
"At 17:38:31 UT on 13 September 2008, the Fermi Gamma-Ray Burst Monitor
(GBM) triggered and located GRB 080913B (trigger 243020312 / 080913.735).
The on-ground calculated location, using the GBM trigger data,
is RA = 46.3, Dec = -4.6 (J2000 degrees) (equivalent to J2000 3h 05m,
-4d 36'), with an uncertainty of 3.3 degrees (radius, 1-sigma containment,
statistical only; there is additionally a systematic error which is
currently estimated to be 2 to 3 degrees). The angle from the Large Area
Telescope (LAT) boresight is 71 degrees.
This GRB was about 140 s long consisting of several peaks with a main
emission period of 30 seconds. The time-averaged spectrum from T-2 to T+28 s
is best fit by a power law with exponential cut-off,
with a power-law index of -0.69 +/- 0.16 and a cut-off energy, parameterized as
Epeak, of 114 +/- 14 keV. The fluence between 50 and 300 keV over these 30 seconds
is (2.2 +/- 0.5) x 10^-6 erg/cm^2.
The spectral analysis results presented above are preliminary; the final
results will be published in the GBM GRB Catalog."
|