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Doppler tomography and photometry of the cataclysmic variable 1RXS J064434.5+334451
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dc.contributor.author | Hernández Santisteban, J. V. | |
dc.contributor.author | Echevarría, J. | |
dc.contributor.author | Michel, R. | |
dc.contributor.author | Costero, R. | |
dc.date.accessioned | 2019-09-10T14:30:08Z | |
dc.date.available | 2019-09-10T14:30:08Z | |
dc.date.issued | 2017-01 | |
dc.identifier | 261035784 | |
dc.identifier | d8898aa7-4eb7-42c2-bf83-8a9c41957eaf | |
dc.identifier | 85014786056 | |
dc.identifier.citation | Hernández Santisteban , J V , Echevarría , J , Michel , R & Costero , R 2017 , ' Doppler tomography and photometry of the cataclysmic variable 1RXS J064434.5+334451 ' , Monthly Notices of the Royal Astronomical Society , vol. 464 , no. 1 , pp. 104-113 . https://doi.org/10.1093/mnras/stw2282 | en |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | BibCode: 2017MNRAS.464..104H | |
dc.identifier.other | ORCID: /0000-0002-6733-5556/work/61370252 | |
dc.identifier.uri | https://hdl.handle.net/10023/18446 | |
dc.description.abstract | We have obtained simultaneous photometric and spectroscopic observations of the cataclysmic variable 1RXS J064434.5+334451. We have calibrated the spectra for slit losses using simultaneous photometry, allowing us to construct reliable Doppler images from Hα and He ii 4686-Å emission lines. We have improved the ephemeris of the object based on new photometric eclipse timings, obtaining HJD = 245 3403.759 533 + 0.269 374 46E. Some eclipses present a clear internal structure, which we attribute to a central He ii emission region surrounding the white dwarf, a finding supported by Doppler tomography. This indicates that the system has a large inclination angle i = 78 ± 2°. We have also analysed the radial velocity curve from the emission lines to measure its semi-amplitude, K1, from Hα and He ii 4686 and derive the masses of the components M1 = 0.82 ± 0.06 M⊙, M2 = 0.78 ± 0.04 M⊙ and their separation a = 2.01 ± 0.06 R⊙. The Doppler tomography and other observed features in this nova-like system strongly suggest that this is a SW Sex type system. | |
dc.format.extent | 3913974 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.subject | Accretion | en |
dc.subject | Accretion discs | en |
dc.subject | Methods: observational | en |
dc.subject | Stars: individual: J0644+3344 | en |
dc.subject | Stars: individual: SW Sex | en |
dc.subject | Novae | en |
dc.subject | Cataclysmic variables | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Doppler tomography and photometry of the cataclysmic variable 1RXS J064434.5+334451 | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | 10.1093/mnras/stw2282 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | https://arxiv.org/abs/1609.03154 | en |
dc.identifier.url | http://adsabs.harvard.edu/abs/2017MNRAS.464..104H | en |
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