Einstein and EXOSAT observations of Geminga revisited

Details Einstein and EXOSAT observations of Geminga revisited Einstein and EXOSAT observations of Geminga revisited

Dec 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13..343m&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 13, no. 12, p. (12)343-(12)346

Astronomy and Astrophysics

Astronomy

1

Black Body Radiation, Data Processing, Data Reduction, Neutron Stars, Periodic Variations, Spectrum Analysis, Stellar Magnetic Fields, X Ray Astronomy, Cos-B Satellite, Exosat Satellite, Gamma Rays, Heao 2, Proportional Counters, Statistical Analysis

Scientific paper

We have re-analyzed the archive Einstein (HEAO 2) imaging proportional counter (IPC) and EXOSAT CMA x-ray data of Geminga, in the light of the recent discoveries on this source. The results of a search for the 237 msec periodicity are consistent with a pulsed fraction decreasing with x-ray energy. We have combined the EXOSAT CMA and the Einstein data in order to limit the spectral parameters allowed by the IPC fit. This joint analysis confirms that the spectrum cannot be described by a single temperature blackbody component.

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