The mass of the neutron star in the binary millisecond pulsar PSR J1012+5307
dc.contributor.author | Callanan, Paul J. | |
dc.contributor.author | Garnavich, Peter M. | |
dc.contributor.author | Koester, D. | |
dc.contributor.funder | National Aeronautics and Space Administration | |
dc.date.accessioned | 2017-11-07T09:38:59Z | |
dc.date.available | 2017-11-07T09:38:59Z | |
dc.date.issued | 1998 | |
dc.description.abstract | We have measured the radial velocity variation of the white dwarf secondary in the binary system containing the millisecond pulsar PSR J1012 + 5307. Combined with the orbital parameters of the radio pulsar, we infer a mass ratio q (=M-1/M-2) = 10.5 +/- 0.5 OUT optical spectroscopy has also allowed us to determine the mass of the white dwarf companion by fitting the spectrum to a grid of DA model atmospheres: we estimate M-2 = 0.16 +/- 0.02 M., and hence the mass of the neutron star is 1.64 +/- 0.22 M., where the error is dominated by that of M-2. The orbital inclination is 52 +/- 4 deg. For an initial neutron star mass of similar to 1.4 M., only a few tenths of a solar mass at most has been successfully accreted over the lifetime of the progenitor low-mass X-ray binary. If the initial mass of the secondary was similar to 1 M., our result suggests that the mass transfer may have been non-conservative. | en |
dc.description.sponsorship | National Aeronautics and Space Administration (NAGW-4296) | |
dc.description.status | Peer reviewed | en |
dc.description.version | Published Version | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Callanan, P. J., Garnavich, P. M. and Koester, D. (1998) 'The mass of the neutron star in the binary millisecond pulsar PSR J1012 + 5307', Monthly Notices of the Royal Astronomical Society, 298(1), pp. 207-211. doi: 10.1046/j.1365-8711.1998.01634.x | en |
dc.identifier.doi | 10.1046/j.1365-8711.1998.01634.x | |
dc.identifier.endpage | 211 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.issued | 1 | |
dc.identifier.journaltitle | Monthly Notices of the Royal Astronomical Society | en |
dc.identifier.startpage | 207 | |
dc.identifier.uri | https://hdl.handle.net/10468/4992 | |
dc.identifier.volume | 298 | |
dc.language.iso | en | en |
dc.publisher | Oxford University Press | en |
dc.relation.uri | https://academic.oup.com/mnras/article-lookup/doi/10.1046/j.1365-8711.1998.01634.x | |
dc.rights | © 1998, Royal Astronomical Society | en |
dc.subject | Stars | en |
dc.subject | Binaries | en |
dc.subject | General | en |
dc.subject | Neutron | en |
dc.subject | Pulsars | en |
dc.subject | Individual | en |
dc.subject | PSR J1012 + 5307 | en |
dc.title | The mass of the neutron star in the binary millisecond pulsar PSR J1012+5307 | en |
dc.type | Article (peer-reviewed) | en |
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