English

Evidences for a double component in GRB 101023

High Energy Astrophysical Phenomena 2011-11-10 v1

Abstract

We present the results of the analysis of GRB 101023 in the fireshell scenario. Its redshift has not been determined due to the lack of data in the optical band, so we tried to infer it from the Amati Relation, obtaining z=0.9. Its light curve presents a double emission, which makes it very similar to the already studied GRB 091018. We performed a time-resolved spectral analysis with XSPEC using different spectral models, and fitted the light curve with the numerical code GRBsim. We used Fermi GBM data to build the light curve, in particular the second INa detector, in the range (8-440 keV). We found that the first emission does not match the requirements for a GRB, while the second part perfectly agrees with being a canonical GRB, with a P-GRB lasting 4s.

Keywords

Cite

@article{arxiv.1111.2225,
  title  = {Evidences for a double component in GRB 101023},
  author = {A. V. Penacchioni and R. Ruffini and L. Izzo and M. Muccino and B. Patricelli and C. L. Bianco and L. Caito},
  journal= {arXiv preprint arXiv:1111.2225},
  year   = {2011}
}

Comments

4 pages, 6 figures, 2011 Fermi Symposium proceedings - eConf C110509

R2 v1 2026-06-21T19:33:24.359Z