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http://hdl.handle.net/2289/1599
Title: | Some constraints on the evolutionary history of the binary pulsar PSR 1913+16 |
Authors: | Srinivasan, G. van den Heuvel, E.P.J. |
Keywords: | Binary stars Neutron stars Pulsars Stellar evolution X-ray sources Angular momentum Roche limit Stellar magnetic fields Stellar mass accretion |
Issue Date: | Apr-1982 |
Publisher: | Springer-Verlag |
Citation: | Astronomy and Astrophysics, 1982, Vol.108, p143-147. |
Abstract: | It is argued that the combination of 0.059 s pulse period and weak surface dipole magnetic field strength of PSR 1913 + 16 is excluded for a newly born pulsar. This yields support to the suggestion that PSR 1913 + 16 obtained its short pulse period during a spiral-in history, in which it underwent heavy accretion of matter with angular momentum from its companion. The shortest possible pulse period compatible with its magnetic field in such a case is approximately 0.04 s. As this spiral-in will have completely circularized the orbit, its presently large orbital eccentricity indicates that a second supernova explosion must have taken place in the system and, consequently, that its companion is also a neutron star (or a black hole). It is argued that the progenitor system was a binary with component masses of at least 8 solar masses. The various possible types of radio pulsars resulting from the evolution of close binaries are discussed. |
URI: | http://hdl.handle.net/2289/1599 |
ISSN: | 0004-6361 |
Alternative Location: | http://adsabs.harvard.edu/cgi-bin/bib_query?1982A&A...108..143S |
Copyright: | (1982) by the European Southern Observatory. Scanned images provided by the NASA ADS. |
Appears in Collections: | Research Papers (A&A) |
Files in This Item:
File | Description | Size | Format | |
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1982 A&A V108 p143.pdf | 5p. | 793.1 kB | Adobe PDF | View/Open |
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