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arXiv · astro-ph/9904305

The possible companions of young radio pulsars

Simon Portegies Zwart·Lev Yungelson
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Abstract

We discuss the formation of pulsars with massive companions in eccentric orbits. We demonstrate that the probability for a non-recycled radio pulsar to have a white dwarf as a companion is comparable to that of having an old neutron star as a companion. Special emphasis is given to PSR B1820-11 and PSR B2303+46. Based on population synthesis calculations we argue that PSR B1820-11 and PSR B2303+46 could very well be accompanied by white dwarfs with mass > 1.1Msun. For PSR B1820-11, however, we can not exclude the possibility that its companion is a main-sequence star with a mass between about 0.7Msun and 5Msun.

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Simon Portegies Zwart, Lev Yungelson. 1999-05-19. The possible companions of young radio pulsars. https://doi.org/10.1046/j.1365-8711.1999.02792.x

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