X-rays from the eclipsing pulsar 1957+20

Details X-rays from the eclipsing pulsar 1957+20 X-rays from the eclipsing pulsar 1957+20

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.359..303f&link_type=abstract

Nature (ISSN 0028-0836), vol. 359, no. 6393, p. 303, 304.

Computer Science

33

Eclipsing Binary Stars, Pulsars, Stellar Winds, X Ray Sources, Companion Stars, Degenerate Matter, H Alpha Line, Interstellar Matter, Rosat Mission, Stellar Flares, Stellar Luminosity

Scientific paper

The detection of soft X-rays of about 1 keV energy from the eclipsing pulsar PSR1957+20 is reported. This high-energy radiation should be a valuable diagnostic of the wind in this recycled pulsar system. Possible sources of the X-ray emission are the interstellar nebula driven by the pulsar wind, the interaction between the pulsar and its evaporating companion, and the pulsar itself. The small apparent size of the X-ray object argues against the first of these possibilities and suggests that the X-rays are produced within the binary.

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