Be/X-ray binaries as the progenitors of the supergiant fast X-ray transients IGR J18483-0311 and IGR J11215-5952

Details Be/X-ray binaries as the progenitors of the supergiant fast X-ray transients IGR J18483-0311 and IGR J11215-5952 Be/X-ray binaries as the progenitors of the supergiant fast X-ray transients IGR J18483-0311 and IGR J11215-5952

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mnras.415.3349l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 415, Issue 4, pp. 3349-3353.

Astronomy and Astrophysics

Astronomy

3

Binaries: Close, Pulsars: Individual: Igr J18483-0311, Pulsars: Individual: Igr J11215-5952, X-Rays: Binaries

Scientific paper

The relation between the spin period (Ps) and the orbital period (Po) in high-mass X-ray binaries is investigated. Be/X-ray binaries and SG/X-ray binaries occupy different areas in the Corbet diagram. The supergiant fast X-ray transients, IGR J18483-0311 and IGR J11215-5952, however, fall into the area occupied by Be/X-ray binaries. After excluding the other evolution scenarios, we find that the positions of the two supergiant fast X-ray transients in the diagram can be interpreted by being the descendants of O-emission X-ray binaries, i.e. the supergiant stars in these systems formed from O-type emission line stars instead of normal main-sequence stars. Therefore, we suggest that there are two types of SG/X-ray binaries: the first one is directly evolved from OB-type main-sequence star and neutron star systems without accretion history, and the other evolved from Be/X-ray binaries with accretion history.

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