| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB130708488 |
|
| T0 |
11:43:03.700 UTC |
Swift |
| ra |
17.4740° |
Swift |
| decl |
0.0030° |
Swift |
| pos_error |
1.86e-02° |
Swift |
| T90 |
14.077 s |
Fermi_GBM |
| T90_error |
3.114 s |
Fermi_GBM |
| T90_start |
11:43:04.272 UTC |
Fermi_GBM |
| fluence |
2.53e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
2.70e-08 erg/cm² |
Fermi_GBM |
| T100 |
14.649 s |
|
| GBM_located |
False |
|
| mjd |
56481.48823726852 |
Swift |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB130708488 |
| trigger_name |
bn130708488 |
| ra |
17.4742° |
| decl |
0.0031° |
| pos_error |
3.23e+00° |
| datum |
2013-07-08 |
| t_trigger |
11:43:04.269 UTC |
| T90 |
14.077 s |
| T90_error |
3.114 s |
| T90_start |
11:43:04.272 UTC |
| fluence |
2.53e-06 erg/cm² |
| fluence_error |
2.70e-08 erg/cm² |
| flux_1024 |
3.55e+00 erg/cm²/s |
| flux_1024_error |
2.44e-01 erg/cm²/s |
| flux_1024_time |
5.82e+00 erg/cm²/s |
| flux_64 |
5.83e+00 erg/cm²/s |
| flux_64_error |
1.20e+00 erg/cm²/s |
| IPN table |
|---|
| GRB_name |
GRB130708A |
| ra |
217.3125° |
| decl |
15.7667° |
| pos_error |
5.00e-02° |
| Swift table |
|---|
| GRB_name |
GRB130708A |
| t_trigger |
11:43:03.700 UTC |
| ra |
17.4740° |
| decl |
0.0030° |
| pos_error |
1.86e-02° |
| T90 |
9.0 s |
| fluence |
7.80e-06 erg/cm² |
| GCN 14997 table |
|---|
| GRB_name |
GRB130708A |
| GCN_number |
14997 |
| Detection_method |
Swift-BAT Det |
| ra |
17.4740° |
| decl |
0.0030° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 14997
SUBJECT: GRB 130708A found in ground analysis of Swift-BAT data
DATE: 13/07/09 14:57:45 GMT
FROM: Jay R. Cummings at NASA/GSFC/Swift
J. R. Cummings reports on behalf of the Swift-BAT team
At 11:43:03.7 Swift-BAT triggered on GRB 130708A (trigger 560515). No
significant source was found onboard, and rate-trigger processing was
terminated prematurely by a pre-planned slew. A significant source was found
in ground analysis at RA, Dec 17.474, 0.003, which is:
RA (J2000) 01h 09m 53.7s
Dec (J2000) 00d 00' 11.9"
with an estimated 90% error radius of 2.4 arcmin. This position is 5.0 degrees
from the location found by Fermi-GBM for trigger 394976587, which has an
estimated error of 2.2 degrees. The partial coding was 11%.
We note that this position is 1.6 arcmin from a Seyfert I galaxy at Z = 0.16,
[VV2003c] J010946.5-000023.
The BAT lightcurve shows a double-peaked long GRB. The T90 of the GRB was about
9 +/- 1 seconds, with a spectral power-law index of 1.38 +/- 0.28 and a fluence
of (7.8 +/- 1.8) x 10^-6 ergs/cm^2 in the 15-150 keV BAT energy range. Error
estimates are 90% confidence.
A Swift TOO request has been approved to locate the afterglow with XRT. Since
this burst was not located onboard, the usual automated analysis products are
not available.
|
| GCN 14999 table |
|---|
| GRB_name |
GRB130708A |
| GCN_number |
14999 |
| Detection_method |
Fermi GBM Det |
| t_trigger |
11:43:04.270 UTC |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 14999
SUBJECT: GRB 130708A: Fermi GBM observation
DATE: 13/07/10 11:23:35 GMT
FROM: Gerard Fitzpatrick at UCD
G. Fitzpatrick (UCD) reports on behalf of the Fermi GBM Team:
At 11:43:04.27 UT on 08 July 2013, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 130708A (trigger 394976587/130708488)
which was also detected by the Swift/BAT (Cummings et al., GCN Circ. 14997).
The GBM on-ground location is consistent with the Swift position.
The GBM light curve consists of a single peak
with a duration (T90) of about 14 s (50-300 keV).
The time-averaged spectrum from T0 s to T0 + 8 s is
adequately fit by a power law function with an exponential
high-energy cutoff. The power law index is -0.9 +/- 0.1 and
the cutoff energy, parameterized as Epeak, is 158 +/- 16 keV
The event fluence (10-1000 keV) in this time interval is
(2.3 +/- 0.1)E-06 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+5.8 s in the 10-1000 keV band is 1.0 +/- 0.07 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog.
|
| GCN 15001 table |
|---|
| GRB_name |
GRB130708A |
| GCN_number |
15001 |
| Detection_method |
Swift Other |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 15001
SUBJECT: GRB 130708A: Swift XRT and UVOT Observations
DATE: 13/07/10 20:07:37 GMT
FROM: Alessandro Maselli at INAF/IASF Palermo
A. Maselli (INAF-IASF Palermo) and A. Breeveld (MSSL-UCL) report on behalf of the Swift XRT and UVOT teams:
The Swift/XRT started observing the field of the BAT ground-detected GRB 130708A (Cummings, GCN Circ. 14997) on 2013-07-09 at 14:49:07 UT, 97564 s after the BAT trigger. In 3881 s of XRT data in Photon Counting mode we detected no significant X-ray source within the BAT error circle. The 3-sigma upper limit at the reported BAT position is 4.0E-03 cts/s.
The Swift/UVOT began settled observations of the field of GRB 130708A 97557 s after the BAT trigger. No optical afterglow consistent with the BAT position is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
white 97741 107968 1001 >21.6
v 97926 103874 1037 >20.1
u 97557 107909 1804 >21.4
The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.03 in the direction of the burst (Schlegel et al. 1998).
This circular is an official product of the Swift XRT and UVOT teams.
|