GRB081130B

This page lists all entries on GRB081130B in GRBweb

Summary Fermi GBM GCN 8593 GCN 8597

Summary table
Variable Value Source
GRB_name_Fermi GRB081130629
T0 15:04:43.465 UTC Fermi_GBM
ra 13.2000° Fermi_GBM
decl -5.5000° Fermi_GBM
pos_error 3.95e+00° Fermi_GBM
T90 39.169 s Fermi_GBM
T90_error 3.62 s Fermi_GBM
T90_start 15:04:43.465 UTC Fermi_GBM
fluence 2.70e-06 erg/cm² Fermi_GBM
fluence_error 4.93e-08 erg/cm² Fermi_GBM
T100 39.169 s
GBM_located True
mjd 54800.62828084491 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB081130629
trigger_name bn081130629
ra 13.2000°
decl -5.5000°
pos_error 3.95e+00°
datum 2008-11-30
t_trigger 15:05:15.722 UTC
T90 39.169 s
T90_error 3.62 s
T90_start 15:04:43.465 UTC
fluence 2.70e-06 erg/cm²
fluence_error 4.93e-08 erg/cm²
flux_1024 4.95e+00 erg/cm²/s
flux_1024_error 2.77e-01 erg/cm²/s
flux_1024_time 1.66e+00 erg/cm²/s
flux_64 6.72e+00 erg/cm²/s
flux_64_error 1.20e+00 erg/cm²/s
GCN 8593 table
GRB_name GRB081130B
GCN_number 8593
Detection_method Fermi GBM Det
t_trigger 15:05:15.720 UTC
ra 14.1000°
decl 4.2000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 8593 SUBJECT: GRB 081130B: Fermi GBM detection DATE: 08/12/02 21:26:01 GMT FROM: Alexander van der Horst at NASA/MSFC A.J. van der Horst (NASA/MSFC/ORAU) reports on behalf of the Fermi GBM Team: "At 15:05:15.72 UT on 30 November 2008, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 081130 (trigger 249750316 / 081130.629). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 14.1, Dec = +4.2 (J2000 degrees, equivalent to J2000 0h 56m, +4d 10'), with a statistical uncertainty of 3.5 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 66 degrees. The GBM light curve shows a spike of ~12 seconds and a possible precursor at ~T0-28 seconds. The time-averaged spectrum from T0-0.8s to T0+7.4s is best fit by a power-law function with an exponential high-energy cutoff. The power-law index is -0.77 +/- 0.12 and the cutoff energy, parameterized as Epeak, is 152 +/- 17 keV. The fluence (50-300 keV) in this time interval is (1.3 +/- 0.1)E-6 erg/cm^2. The 1-sec peak photon flux measured starting from T0+1.3s in the 50-300 keV band is 1.8 +/- 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 8597 table
GRB_name GRB081130B
GCN_number 8597
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 8597 SUBJECT: GRB 081130B: MASTER prompt optical observations DATE: 08/12/03 17:13:15 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State University, Kourovka S.Yazev, K.Ivanov Irkutsk State University One of the four MASTER Very Wide Field Cameras located at Kislovodsk (http://apollo.sai.msu.ru/, D=50 mm, 4x1000 square degrees, 35'' per pix) has observed Fermi error box (A.J. van der Horst, GCN Circ 8593) with 5s exposures during all night without time gap between images (Gorbovskoy et al., GCN 8585). These unfiltered images are calibrated relative to Tycho stars (V). The magnitude limit of the each emage is ~11m. Now we present results final result. We do not detect any new source inside error box (A.J. van der Horst, GCN Circ 8593) brighter than 12.0 mag before and after trigger time. The optical fluence during the 15s-GRBurst is limited by <= 1.5 x 10_-9 erg/cm_2 excluding possible absorbtion. The fluence (50-300 keV) in this time interval is (1.3 +/- 0.1)E-6 erg/cm^2 (A.J. van der Horst, GCN Circ 8593). So: Optical Fluence/Gamma-Fluence(50-300 keV) ~ < 1/1000 The ratio for GRB080319B is Optical Fluence/Gamma-Fluence(15-150 keV) ~ 1/25 (Naked Eye GRB, Racusin, Karpov et al., Nature, vol.455, 183, 2008). The video and other info are available at http://observ.pereplet.ru/images/GRB081130B/grb_film.html Note: the GRB was at the edge of the FOW. The message may be cited. mailto: lipunov@sai.msu.ru