Non-absorption dips in the spectra of gamma-ray bursts

Details Non-absorption dips in the spectra of gamma-ray bursts Non-absorption dips in the spectra of gamma-ray bursts

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.304..139l&link_type=abstract

Nature (ISSN 0028-0836), vol. 304, July 14, 1983, p. 139-141.

Astronomy and Astrophysics

Astronomy

9

Black Body Radiation, Gamma Ray Bursts, Gamma Ray Spectra, Spectrum Analysis, Synchrotron Radiation, Bremsstrahlung, High Energy Electrons, Neutron Stars, Relativistic Particles, Stellar Luminosity, Thermal Radiation

Scientific paper

Observed dips in the gamma ray spectra in the 30-70 keV range during radioastronomy studies are attributed to a superposition of two spectra. One is an optically thin thermal synchrotron spectrum with a turnover of 55-110 keV and the second is black-body temperatures of 7-12 keV. The black body thermal bremsstrahlung, and a synchrotron spectrum are quantified, assuming a harmonic number value of 4. Attention is also given to the synchrotron luminosity, and the values are compared with four sample spectra, including data from the Solar Maximum Mission. Support for the two component model is found in the soft component of the object GB7903524, and further confirmation is indicated with observations in the 1-20 keV range.

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