The orbital period of 2S 1223-624 /GX301-2/

Details The orbital period of 2S 1223-624 /GX301-2/ The orbital period of 2S 1223-624 /GX301-2/

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.199..915w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 199, June 1982, p. 915-924. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

47

Binary Stars, Orbital Elements, Periodic Variations, Pulsars, Stellar Motions, X Ray Sources, B Stars, Eccentric Orbits, Light Curve, Neutron Stars, Sky Surveys (Astronomy), Spaceborne Astronomy, Supergiant Stars

Scientific paper

The X-ray light curve of GX 301-2 is investigated, using Ariel 5 Sky Survey Instrument observations spanning 1300 days. The evidence indicates that GX 301-2 is a binary system with an orbital period of 41.4 days. The X-ray light curve is characterized by bright flares occurring just before periastron passage of the neutron star. The results of various simulations using an eccentric orbit model are shown, and it is concluded that simple eccentric orbit stellar wind models cannot reproduce in detail the observed X-ray behavior of the system.

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