Variable cosmic X and gamma ray sources

Details Variable cosmic X and gamma ray sources Variable cosmic X and gamma ray sources

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974csgr.conf..345b&link_type=abstract

In ESRO The Context and Status of Gamma Ray Astronomy p 345-352 (SEE N75-25813 16-93)

Astronomy and Astrophysics

Astronomy

Cosmic Rays, Gamma Rays, X Ray Sources, Cos-B Satellite, Crab Nebula, Eclipsing Binary Stars, Emission Spectra, Flux Density, Galactic Radiation, Line Spectra, Point Sources, Radiation Sources, Satellite-Borne Instruments, Time Dependence, Variable Stars

Scientific paper

Celestial X-ray sources are characterized by the time variability observed in their luminosity. The source intensity versus time profile observed at low X-ray energy (few keV range), where the flux is high enough for a comfortable counting rate at the detector, is used as a valuable tool for the contemporary detection and identification of the source at higher energies where the luminosity could be too low to allow a significant analysis on its own. Information on the source emission mechanism is derived from a knowledge of the time correlation of the fluxes detected in different energy ranges. The feasibility of utilizing the COS-B X-ray detector to establish the reference time profile for the source analysis at various gamma energies is examined. X-ray sources which could become target sources for the COS-B mission are analyzed.

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