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Quest for the donor star in the magnetic precataclysmic variable V1082 Sgr
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dc.contributor.author | Tovmassian, G. | |
dc.contributor.author | González, J. F. | |
dc.contributor.author | Hernández, M.-S. | |
dc.contributor.author | González–Buitrago, D. | |
dc.contributor.author | Zharikov, S. | |
dc.contributor.author | Hernández Santisteban, J. V. | |
dc.date.accessioned | 2019-09-11T09:30:02Z | |
dc.date.available | 2019-09-11T09:30:02Z | |
dc.date.issued | 2018-12-10 | |
dc.identifier | 261034925 | |
dc.identifier | 7ddefc5f-c1b0-4cd5-bdac-a0845d085275 | |
dc.identifier | 85058469666 | |
dc.identifier.citation | Tovmassian , G , González , J F , Hernández , M-S , González–Buitrago , D , Zharikov , S & Hernández Santisteban , J V 2018 , ' Quest for the donor star in the magnetic precataclysmic variable V1082 Sgr ' , Astrophysical Journal , vol. 869 , no. 1 , 22 . https://doi.org/10.3847/1538-4357/aaec02 | en |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | BibCode: 2018ApJ...869...22T | |
dc.identifier.other | ORCID: /0000-0002-6733-5556/work/61370251 | |
dc.identifier.uri | https://hdl.handle.net/10023/18455 | |
dc.description.abstract | We obtained high-resolution spectra and multicolor photometry of V1082 Sgr to study the donor star in this 20.8 hr orbital period binary, which is assumed to be a detached system. We measured the rotational velocity (v sin i = 26.5 ± 2.0 km s−1), which, coupled with the constraints on the white dwarf mass from the X-ray spectroscopy, leads to the conclusion that the donor star barely fills 70% of its corresponding Roche lobe radius. It appears to be a slightly evolved K2-type star. This conclusion was further supported by a recently published distance to the binary system measured by the Gaia mission. At the same time, it becomes difficult to explain a very high (>10−9 M⊙ yr-1 ) mass transfer and mass accretion rate in a detached binary via stellar wind and magnetic coupling. | |
dc.format.extent | 10 | |
dc.format.extent | 1706589 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal | en |
dc.subject | Binaries: close | en |
dc.subject | Novae | en |
dc.subject | Cataclysmic variables | en |
dc.subject | Stars: individual: V1082 Sgr | en |
dc.subject | Star: rotation | en |
dc.subject | Stars: winds | en |
dc.subject | Outflows | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | DAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Quest for the donor star in the magnetic precataclysmic variable V1082 Sgr | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | https://doi.org/10.3847/1538-4357/aaec02 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | https://arxiv.org/abs/1811.08049 | en |
dc.identifier.url | http://adsabs.harvard.edu/abs/2018ApJ...869...22T | en |
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