SS433: the second Wolf-Rayet X-ray binary ?

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dc.creatorFuchs, Yael
dc.creatorKoch-Miramond, Lydie
dc.creatorAbraham, Peter
dc.date2002-08-23
dc.date2002-08-27
dc.date.accessioned2026-07-07T02:04:47Z
dc.date.available2026-07-07T02:04:47Z
dc.descriptionWe present mid-infrared spectrophotometric observations of SS433 with ISOPHOT. The HeI+HeII lines in both spectra of SS433 and of the Wolf-Rayet star WR147, a wind-colliding WN8+BO5 binary system, closely match. The 2.5-12 micron continuum radiation is due to an expanding wind free-free emission in an intermediate case between optically thick and optically thin regimes. The inferred mass loss rate evaluation gives ~10^{-4} Msun/yr. Our results are consistent with a Wolf-Rayet-like companion to the compact object in SS433. A similar study for Cygnus X-3 confirms the Wolf-Rayet-like nature of its companion, although with a later WN type than previously suggested.
dc.description4 pages, 3 figures, Proceedings of the 4th Microquasar Workshop, eds. Ph Durouchoux, Y. Fuchs and J. Rodriguez, published by the Center for Space Physics: Kolkata minor typos corrected
dc.identifierhttps://arxiv.org/abs/astro-ph/0208432
dc.identifierhttp://arxiv.org/abs/astro-ph/0208432
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4895
dc.subjectAstrophysics
dc.titleSS433: the second Wolf-Rayet X-ray binary ?
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