The evolutionary history of PSR 0655 + 64 and PSR 1913 + 16

Details The evolutionary history of PSR 0655 + 64 and PSR 1913 + 16 The evolutionary history of PSR 0655 + 64 and PSR 1913 + 16

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.174..135m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 174, no. 1, Dec. 1990, p. 135-141.

Astronomy and Astrophysics

Astrophysics

1

Accretion Disks, Binary Stars, Pulsars, Stellar Evolution, Angular Momentum, Helium, Mass Transfer, Stellar Mass, Stellar Mass Accretion, Stellar Orbits

Scientific paper

It is shown that the existing evolutionary scenario for the binary radio pulsars PSR 0655 + 64 and PSR 1913 + 16, which have with short orbital periods (1 day and 8 days, respectively) and relatively massive (mass greater than 0.5 solar mass) companions, is unsatisfactory, because it does not allow for a prolonged phase of the angular momentum transfer. A modified evolutionary scenario is proposed, which includes such a prolonged phase of angular momentum transfer from a low-mass He star to the neutron star. The transfer is mediated by an accretion disk along the case-B evolutionary track. It is shown that this scheme explains the genesis of PSR 0655 + 64 and PSR 1913 + 16.

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