Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...366l..27t&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 366, Jan. 1, 1991, p. L27-L31.
Astronomy and Astrophysics
Astrophysics
33
Pulsars, Stellar Evolution, X Ray Binaries, Companion Stars, Stellar Mass, Stellar Mass Accretion
Scientific paper
The apparent statistical discrepancy currently observed between the number of Galactic millisecond pulsars and their low-mass X-ray binary (LMXB) progenitors is solved if the evolution of a relatively large number of LMXBs is driven by mass transfer sustained by radiation illuminating the companion star. The effective life-time of a radiation-driven LMXB is expected to be of order 10 to the 7th yr, and much shorter (by a factor about 10-100) than the typical lifetimes associated with evolutionary mechanisms which neglect the effect of radiation from the primary star. The proposed mechanism of evolution may be operating for LMXBs with P(orb) not greater than about 10 days. This class of X-ray binaries is not expected to be produced by binary evolution involving the 'prompt' formation of millisecond pulsars after accretion-induced collapse of white dwarf primaries.
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