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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.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 | PURE: 261034925 | |
dc.identifier.other | PURE UUID: 7ddefc5f-c1b0-4cd5-bdac-a0845d085275 | |
dc.identifier.other | BibCode: 2018ApJ...869...22T | |
dc.identifier.other | Scopus: 85058469666 | |
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.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal | en |
dc.rights | Copyright © 2018 American Astronomical Society. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.3847/1538-4357/aaec02 | 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.description.version | Publisher PDF | 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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