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The Evolutionary Status of PSR 1718–19

Published online by Cambridge University Press:  25 May 2016

Ene Ergma  and
Marek J. Sarna
Ene Ergma
Affiliation:
Physics Department, Tartu University, Ulikooli 18, EE2400 Tartu, Estonia
Marek J. Sarna
Affiliation:
N. Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18, 00-716 Warsaw, Poland

Abstract

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Possible models for the matter source inside the eclipsing binary system PSR 1718–19, and for the evolution of this system are reviewed, including Zwitter's (1993) stripped main-sequence (MS) turnoff star model. Both the accretion induced collapse (AIC) scenario with a young neutron star, and the capture scenario with an old neutron star are discussed. Although Burderi & King (1994) claim that the size of the Roche lobe (∼0.5 R⊙) unambiguously rules out the AIC formation scenario, we show that in our evolutionary picture an AIC scenario will be possible.

Type
1 Binary Evolution
Information
Symposium - International Astronomical Union , Volume 165: Compact Stars in Binaries , 1996 , pp. 73 - 79
Copyright
Copyright © Kluwer 1996 

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