//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 10372 SUBJECT: GRB 100113A: Fermi GBM detection DATE: 10/02/05 19:31:27 GMT FROM: Sylvain Guiriec at UAH Sylvain Guiriec (UAH) reports on behalf of the Fermi GBM Team: "At 17:29:24.14 UT on 10 January 2010, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 100130A (trigger 286565366 / 100130729). The on-ground calculated location, using the GBM trigger data, is RA = 19.89, DEC = -25.21 (J2000 degrees, equivalent to 01h19m, -25d12'), with an uncertainty of 2.30 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 51 degrees. The GBM triggered on a weak and soft peak followed by a very bright one starting at ~T0+50 s and a weaker one at ~T0+75 s. The duration (T90) is about 106+/-4 s (8-1000 keV). The time-averaged spectrum from T0-8 s to T0+96 s is adequately fit by a power law function with an exponential high energy cutoff. The power law index is -0.97 +/- 0.06 and the cutoff energy, parameterized as Epeak, is 100.50 +/- 4.77 keV (Castor C-stat 762 for 488 d.o.f.). The event fluence (8-1000 keV) in this time interval is (8.21+/-0.30)E-6 erg/cm^2. The 1-sec peak photon flux measured starting from T0+72.7 s in the 8-1000 keV band is 5.90 +/- 0.23 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog." ------------------------------ GBMwiki: GCN-100130729-Draft (last edited 01.02.2010 21:09:41 by SylvainGuiriec ) - Edit - Comments - Info - Subscribe - Add Link - Attachments - More Actions:Raw Text Print View Render as Docbook Delete Cache ------------------------ Check Spelling Like Pages Local Site Map ------------------------ Rename Page Delete Page ------------------------ Subscribe User ------------------------ Remove Spam Revert to this revision Package Pages Sync Pages ------------------------ AttachMany Load Save