Analysis of gamma ray burst spectra with cyclotron lines

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Description

Motivated by the recent developments in the cyclotron resonance upscattering of soft photons or CUSP model of Gamma Ray Burst (GRB) continuum spectra, we revisit a select database of GRBs with credible cyclotron absorption features. We measure the break energy of the continuum, the slope below the break and deduce the soft photon energy or the electron beam Lorentz factor cutoff. We study the correlation (or lack of) between various parameters in the context of the CUSP model. One surprise result is that there appears to be marginal correlation between the break energy and the spectral index below the break. ... continued below

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Pages: (8 p)

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Kargatis, V. (Rice Univ., Houston, TX (USA). Dept. of Space Physics and Astronomy) & Liang, E.P. (Lawrence Livermore National Lab., CA (USA)) September 26, 1990.

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Motivated by the recent developments in the cyclotron resonance upscattering of soft photons or CUSP model of Gamma Ray Burst (GRB) continuum spectra, we revisit a select database of GRBs with credible cyclotron absorption features. We measure the break energy of the continuum, the slope below the break and deduce the soft photon energy or the electron beam Lorentz factor cutoff. We study the correlation (or lack of) between various parameters in the context of the CUSP model. One surprise result is that there appears to be marginal correlation between the break energy and the spectral index below the break. 20 refs., 8 figs., 2 tabs.

Physical Description

Pages: (8 p)

Notes

NTIS, PC A02/MF A01 - OSTI; GPO Dep.

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  • Los Alamos workshop on gamma-ray bursts, Taos, NM (USA), 29 Jul - 3 Aug 1990

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  • Other: DE91001745
  • Report No.: UCRL-JC-106057
  • Report No.: CONF-9007101--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 6480312
  • Archival Resource Key: ark:/67531/metadc1210202

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  • September 26, 1990

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  • July 5, 2018, 11:11 p.m.

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  • Dec. 11, 2018, 2:27 p.m.

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Kargatis, V. (Rice Univ., Houston, TX (USA). Dept. of Space Physics and Astronomy) & Liang, E.P. (Lawrence Livermore National Lab., CA (USA)). Analysis of gamma ray burst spectra with cyclotron lines, article, September 26, 1990; California. (https://digital.library.unt.edu/ark:/67531/metadc1210202/: accessed April 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.