Coordinated INTEGRAL and optical observations of SS433

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dc.creatorCherepashchuk, A. M.
dc.creatorSunyaev, R. A.
dc.creatorFabrika, S. N.
dc.creatorMolkov, S. V.
dc.creatorBarsukova, E. A.
dc.creatorAntokhina, E. A.
dc.creatorIrsmambetova, T. R.
dc.creatorPanchenko, I. E.
dc.creatorPostnov, K. A.
dc.creatorSeifina, E. V.
dc.creatorShakura, N. I.
dc.creatorTimokhin, A. N.
dc.creatorBikmaev, I. F.
dc.creatorSakhibullin, N. A.
dc.creatorGnedin, Yu. N.
dc.creatorArkharov, A. A.
dc.creatorLarionov, V. M.
dc.date2004-04-24
dc.date.accessioned2026-07-07T02:12:58Z
dc.date.available2026-07-07T02:12:58Z
dc.descriptionResults of simultaneous {\it INTEGRAL} and optical observations of galactic microquasar SS433 in May 2003 are presented. The analysis of the X-ray and optical eclipse duration and hard X-ray spectra obtained by {\it INTEGRAL} together with optical spectroscopy obtained on the 6-m telescope allows us to construct a model of SS433 as a massive X-ray binary. X-ray eclipse in hard X-rays has a depth of $\sim 80%$ and extended wings. The optical spectroscopy allows us to identify the optical companion as a A5-A7 supergiant and to measure its radial velocity semi-amplitude $K_v=132$ km/s. A strong heating effect in the optical star atmosphere is discovered spectroscopically. The observed broadband X-ray spectrum 2-100 keV can be described by emission from optically thin thermal plasma with $kT\sim 15-20 keV$
dc.description8 pages, 11 figures, Proceedings of the V INTEGRAL Workshop, Munich 16-20 February 2004. ESA SP-552
dc.identifierhttps://arxiv.org/abs/astro-ph/0404479
dc.identifierhttp://arxiv.org/abs/astro-ph/0404479
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/7652
dc.subjectAstrophysics
dc.titleCoordinated INTEGRAL and optical observations of SS433
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