2S1145-619 - an X-ray pulsar in an eccentric binary system

Details 2S1145-619 - an X-ray pulsar in an eccentric binary system 2S1145-619 - an X-ray pulsar in an eccentric binary system

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.195..197w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 195, Apr. 1981, p. 197-203.

Astronomy and Astrophysics

Astronomy

34

B Stars, Binary Stars, Eccentric Orbits, Pulsars, Stellar Radiation, X Ray Sources, Ariel 5 Satellite, Light Curve

Scientific paper

Observations of the X-ray pulsar 2S1145-619 over a 4-yr period show that its integrated X-ray emission increases by a factor of not less than 5 for about 10 days once every six months. A possible explanation of this behavior is that the X-ray pulsar and its Be companion form an eccentric binary system in which accretion on to the pulsar is enhanced as its passes periastron. The presence of a second X-ray source within 20 arcmin of 2S1145-619 was also confirmed.

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