A model for A 0538-066 - The fast flaring pulsar

Details A model for A 0538-066 - The fast flaring pulsar A model for A 0538-066 - The fast flaring pulsar

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.204.1179m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 204, Sept. 1983, p. 1179-1184.

Astronomy and Astrophysics

Astronomy

10

Binary Stars, Flare Stars, Neutron Stars, Pulsars, Stellar Models, X Ray Sources, Stellar Envelopes, Stellar Mass Accretion

Scientific paper

A model of A0538-66, where the X-ray and optical outbursts are associated with impulsive accretion onto a neutron star, is explored. The critical density for the onset of accretion onto a fast pulsar is discussed. The region emitting optical outbursts is substantially larger than the accretion disc and its mass greatly exceeds that of an ordinary Be envelope. The optical outbursts may be due to X-ray reprocessing in the primary's envelope and/or to cooling of an expanding shell accelerated by the X-ray burst. During inactive periods the rotational energy loss of the pulsar should give rise to synchrotron radiation from radio to infrared frequencies.

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