On the X-ray source SCO XR-1 |
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Authors: | Osmi Vilhu Ilkka V Tuominen |
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Institution: | (1) Astrophysics Laboratory, University of Helsinki, Helsinki, Finland |
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Abstract: | If the assumption of a catastrophic explosion during the formation of a neutron star is correct, the parent systems for klovsky's model of SCO XR-1 seem to have been very short-period white-dwarf binaries. A white dwarf originally in contact with its Roche limit is forced to lose mass. During the ejection of matter the primary may pass the white-dwarf mass limit and become a neutron star. The mass transfer time-scale can change from pulsational to thermal, and a mass flow of 10–9
M
per year needed for SCO XR-1 can be understood, while at the same time the orbital period will increase. |
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