| Download | - View accepted manuscript: Far-Ultraviolet Spectroscopy of the Supersoft X-Ray Binary RX J0513.9−6951 (PDF, 838 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1086/343839 |
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| Author | Search for: Hutchings, J.B.1; Search for: Winter, K.1; Search for: Crampton, D.1; Search for: Cowley, A.P.; Search for: Schmidtke, P.C. |
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| Affiliation | - National Research Council of Canada. NRC Herzberg Institute of Astrophysics
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| Format | Text, Article |
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| Subject | binaries: close; ISM: jets and outflows; stars: individual (RX J0513.9-6951); ultraviolet emission; X-rays |
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| Abstract | We have obtained spectroscopy with the Far Ultraviolet Spectroscopic Explorer (FUSE) of the supersoft X-ray binary RX J0513.9-6951 over a complete binary orbital cycle. The spectra show a hot continuum with extremely broad O VI emission and weak Lyman absorptions. He II emission is weak and narrow, while N III and C III emissions are undetected, although lines from these ions are prominent at optical wavelengths. The broad O VI emission and Lyman absorption show radial velocity curves that are approximately antiphased and have semiamplitudes of ~117 +- 40 and 54 +- 10 km/s, respectively. Narrow emissions from He II and O VI show small velocity variations with phasing different from the broad O VI, but consistent with the optical line peaks. We also measure considerable changes in the FUV continuum and O VI emission line flux. We discuss the possible causes of the measured variations and a tentative binary interpretation. |
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| Publication date | 2002 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275273 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | b36874fe-d772-4356-bfc6-7e7541928c70 |
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| Record created | 2015-05-28 |
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| Record modified | 2020-06-04 |
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