| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB090815300 |
|
| T0 |
7:12:10.912 UTC |
Fermi_GBM |
| ra |
306.1300° |
GCN_circulars,INTEGRAL |
| decl |
-6.1700° |
GCN_circulars,INTEGRAL |
| T90 |
48.385 s |
Fermi_GBM |
| T90_error |
1.086 s |
Fermi_GBM |
| T90_start |
7:12:10.912 UTC |
Fermi_GBM |
| fluence |
1.43e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
4.43e-08 erg/cm² |
Fermi_GBM |
| T100 |
48.385 s |
|
| GBM_located |
False |
|
| mjd |
55058.30012629629 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB090815300 |
| trigger_name |
bn090815300 |
| ra |
41.0300° |
| decl |
-2.7300° |
| pos_error |
6.30e+00° |
| datum |
2009-08-15 |
| t_trigger |
7:12:12.448 UTC |
| T90 |
48.385 s |
| T90_error |
1.086 s |
| T90_start |
7:12:10.912 UTC |
| fluence |
1.43e-06 erg/cm² |
| fluence_error |
4.43e-08 erg/cm² |
| flux_1024 |
1.59e+00 erg/cm²/s |
| flux_1024_error |
2.56e-01 erg/cm²/s |
| flux_1024_time |
2.24e+00 erg/cm²/s |
| flux_64 |
4.50e+00 erg/cm²/s |
| flux_64_error |
1.47e+00 erg/cm²/s |
| GCN 9812 table |
|---|
| GRB_name |
GRB090815A |
| GCN_number |
9812 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
7:12:12.450 UTC |
| ra |
41.7000° |
| decl |
-2.0000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 9812
SUBJECT: GRB 090815: Fermi GBM detection
DATE: 09/08/15 13:11:29 GMT
FROM: Andreas von Kienlin at MPE
A. von Kienlin (MPE) reports on behalf of the Fermi GBM Team:
"At 07:12:12.45 UT on 15 August 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090815 (trigger 272013134 / 090815300).
The on-ground calculated location, using the GBM trigger
data, is RA = 41.7, DEC = -2.0 (J2000 degrees, equivalent
to 02h 47m, -02d 00'), with an uncertainty of 7.6 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 87 degrees.
The GBM light curve shows two broad pulses with a duration
(T90) of about 200 s (8-1000 keV). The time-averaged spectrum
from T0-5.120 s to T0+24.576 s is well fit by a simple power
law function with index -1.5 +/- 0.1 (chi squared 261 for 241 d.o.f.).
The event fluence (8-1000 keV) in this time interval is
(3.4 +/- 0.3)E-06 erg/cm^2. The 1.024-sec peak photon flux measured
starting from T0+ 3.072 s in the 8-1000 keV band
is 1.9 +/- 0.3 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
|
| GCN 10025 table |
|---|
| GRB_name |
GRB090815A |
| GCN_number |
10025 |
| Detection_method |
INTEGRAL |
| t_trigger |
23:00:17 UTC |
| ra |
306.1300° |
| decl |
-6.1700° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 10025
SUBJECT: GRB 090815: a faint long GRB localized by INTEGRAL
DATE: 09/10/16 13:22:55 GMT
FROM: Carlo Ferrigno at IAAT/ISDC
C. Ferrigno (ISDC, Versoix/IAAT, Tuebingen), D.Gotz (CEA-Saclay),
S.Mereghetti, A.Paizis (IASF-Milano), E. Bozzo, M. Beck (ISDC,
Versoix), and J.Borkowski (CAMK, Torun) on behalf of the IBAS
Localization Team report:
A faint long GRB with duration of about 100 s has been detected by
IBAS in IBIS/ISGRI data at 23:00:17 UTC on August 15th. No automatic
alert has been issued because the trigger was at low significance.
Interactive off-line analysis has allowed to confirm the GRB nature of
the trigger.
The refined coordinates (J2000) are:
RA: 306.13 [degrees] DEC: -6.17 [degrees]
with an uncertainty of 3 arcmin (90% c.l.).
The soft spectrum of the GRB (only detected in the 20-40 keV energy
range) and the long, slowly rising light curve may indicate a highly
redshifted burst. Follow-up observations at other wavelengths are
encouraged.
The light curve of the GRB will be posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html
This message can be cited.
--
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Carlo Ferrigno Institut fr Astronomie
und Astrophysik Tbingen (IAAT)
and
ISDC Data Centre for Astrophysics
Chemin d'cogia 16
CH-1290 Versoix Switzerland
Office +41.22.3792178
mobile (IT) +39.333.3599421
mobile (CH) +41.78.9210855
E-mail: Carlo.Ferrigno@unige.ch
Home Page: http://www.ifc.inaf.it/~ferrigno/
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