| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB140906429 |
|
| T0 |
10:18:02.360 UTC |
GCN_circulars,Fermi GBM Det |
| ra |
185.8400° |
Fermi_GBM |
| decl |
0.9800° |
Fermi_GBM |
| pos_error |
3.50e+00° |
Fermi_GBM |
| T90 |
20.736 s |
Fermi_GBM |
| T90_error |
2.111 s |
Fermi_GBM |
| T90_start |
10:18:03.388 UTC |
Fermi_GBM |
| fluence |
8.37e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
6.78e-08 erg/cm² |
Fermi_GBM |
| T100 |
21.764 s |
|
| GBM_located |
True |
|
| mjd |
56906.42919398148 |
GCN_circulars,Fermi GBM Det |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB140906429 |
| trigger_name |
bn140906429 |
| ra |
185.8400° |
| decl |
0.9800° |
| pos_error |
3.50e+00° |
| datum |
2014-09-06 |
| t_trigger |
10:18:02.364 UTC |
| T90 |
20.736 s |
| T90_error |
2.111 s |
| T90_start |
10:18:03.388 UTC |
| fluence |
8.37e-06 erg/cm² |
| fluence_error |
6.78e-08 erg/cm² |
| flux_1024 |
1.10e+01 erg/cm²/s |
| flux_1024_error |
2.99e-01 erg/cm²/s |
| flux_1024_time |
1.53e+01 erg/cm²/s |
| flux_64 |
1.52e+01 erg/cm²/s |
| flux_64_error |
1.29e+00 erg/cm²/s |
| GCN 16790 table |
|---|
| GRB_name |
GRB140906B |
| GCN_number |
16790 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
10:18:02.360 UTC |
| ra |
187.0900° |
| decl |
1.0200° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 16790
SUBJECT: GRB 140906B: Fermi GBM Detection of a Long GRB
DATE: 14/09/07 19:18:41 GMT
FROM: Oliver Roberts at UCD/Fermi
O.J. Roberts (UCD) reports on behalf of the Fermi GBM Team:
"At 10:18:02.36 UT on the 6th of September 2014, the Fermi Gamma-Ray
Burst Monitor triggered and located GRB 140906B
(trigger 431691485/140906429). The trigger resulted in an Autonomous
Repoint Request (ARR) that was accepted. The GBM on-ground location
is consistent with the Fermi flight software position.
The on-ground calculated location, using the GBM trigger data, is
RA = 187.09, DEC = +1.02 (J2000 degrees, equivalent to
+16h 33m, +49d 30'), with an uncertainty of 2 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 Fermi LAT boresight is 47 degrees.
The GBM light curve consists of several bright emission episodes,
with a duration (T90) of about 23 seconds (50-300 keV). The
time-averaged spectrum from T0+0 s to T0+23 s is well fit by a
power law function with an exponential high-energy cutoff. The power
law index is -1.4 +/- 0.1 and the cutoff energy, parameterized as
Epeak, is 330 +/- 48 keV.
The event fluence (10-1000 keV) in this time interval is
(9.91 +/- 0.07)E-06 erg/cm^2. The 1.024-sec peak photon flux
measured starting from T0+15 s in the 10-1000 keV band is
11.0+/-0.3 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|