S 10947 Aql = RX J2009.8+1557: A probable RS CVn star which sometimes stops its eclipses

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dc.creatorRichter, G. A.
dc.creatorGreiner, J.
dc.date2000-08-25
dc.date.accessioned2026-07-07T01:55:06Z
dc.date.available2026-07-07T01:55:06Z
dc.descriptionWe report the discovery of a new variable star, called S 10947 Aql, as the likely optical counterpart of RX J2009.8+1557. The optical variability pattern as well as the detected X-ray emission suggest that it is a chromospherically active binary of the RS Canum Venaticorum type. We discovered an occasional disappearance of the eclipsing minima as well as large variations in the eclipse amplitude. We discuss possible causes of this peculiarity.
dc.description5 pages, LATEX with aa.sty, 4 ps-figs., A&A (accepted), also available at http://www.aip.de/~jcg/publis.html
dc.identifierhttps://arxiv.org/abs/astro-ph/0008400
dc.identifierhttp://arxiv.org/abs/astro-ph/0008400
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1543
dc.subjectAstrophysics
dc.titleS 10947 Aql = RX J2009.8+1557: A probable RS CVn star which sometimes stops its eclipses
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