| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB100423244 |
|
| T0 |
5:51:25.750 UTC |
Fermi_GBM |
| ra |
119.6700° |
Fermi_GBM |
| decl |
5.7800° |
Fermi_GBM |
| pos_error |
3.00e+00° |
Fermi_GBM |
| T90 |
16.512 s |
Fermi_GBM |
| T90_error |
2.226 s |
Fermi_GBM |
| T90_start |
5:51:27.350 UTC |
Fermi_GBM |
| fluence |
7.92e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
1.21e-07 erg/cm² |
Fermi_GBM |
| T100 |
18.112 s |
|
| GBM_located |
True |
|
| mjd |
55309.24404803241 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB100423244 |
| trigger_name |
bn100423244 |
| ra |
119.6700° |
| decl |
5.7800° |
| pos_error |
3.00e+00° |
| datum |
2010-04-23 |
| t_trigger |
5:51:25.750 UTC |
| T90 |
16.512 s |
| T90_error |
2.226 s |
| T90_start |
5:51:27.350 UTC |
| fluence |
7.92e-06 erg/cm² |
| fluence_error |
1.21e-07 erg/cm² |
| flux_1024 |
3.35e+00 erg/cm²/s |
| flux_1024_error |
1.46e-01 erg/cm²/s |
| flux_1024_time |
5.31e+00 erg/cm²/s |
| flux_64 |
5.38e+00 erg/cm²/s |
| flux_64_error |
7.56e-01 erg/cm²/s |
| GCN 10659 table |
|---|
| GRB_name |
GRB100423B |
| GCN_number |
10659 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
5:51:25.750 UTC |
| ra |
119.7000° |
| decl |
5.8000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 10659
SUBJECT: GRB 100423B: Fermi GBM detection
DATE: 10/04/23 12:48:10 GMT
FROM: David Gruber at MPE
David Gruber (MPE)
reports on behalf of the Fermi GBM Team:
"At 05:51:25.75 UT on 23 April 2010, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 100423B (trigger 293694687 / 100423244).
The on-ground calculated location, using the GBM trigger
data, is RA = 119.7, DEC = 5.8 (J2000 degrees,
equivalent to 07h 58m, 05d 46'), with an uncertainty
of 1.5 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 40 degrees.
The GBM light curve consists of one pulse
with a duration (T90) of about 21.6 +/- 1.1 s (8-1000 keV).
The time-averaged spectrum from T0-2.0 s to T0+23.6s is
best fit by a power law function with an exponential
high energy cutoff. The power law index is -0.84 +/-0.05 and
the cutoff energy, parameterized as Epeak, is 1034 (+144/-117) keV
(CSTAT 1395.6 for 845 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(1.226 +/- 0.019)E-5 erg/cm^2. The 1.024-sec peak photon flux measured
starting from T0+5.3 s in the 8-1000 keV band
is 3.53 +/- 0.13 ph/s/cm^2.
A Band function fits the spectrum equally well (CSTAT 1394.3 for 844 d.o.f.)
with Epeak= 1006 (+122/-113) keV, alpha = -0.83 (+0.05/-0.04)
and beta = -3.15 (+0.45/-1.24).
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|