Symbiotic Binary YY Her – Eclipses, Flares and Outbursts

Issue Title: Close Binaries in the 21st Century: New Opportunities and Challenges The long-term CCD and photoelectric observations of YY Her covering the period of its post-outburst activity (JD 2 451 823 -- 2 452 996) are presented. We explain the periodic variations of the brightness of YY Her by...

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Published inAstrophysics and space science Vol. 304; no. 1-4; pp. 307 - 309
Main Authors Hric, L., Gális, R., Niarchos, P., Gazeas, K.
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.08.2006
Subjects
Astrophysics
Double stars
White dwarfs
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Summary:Issue Title: Close Binaries in the 21st Century: New Opportunities and Challenges The long-term CCD and photoelectric observations of YY Her covering the period of its post-outburst activity (JD 2 451 823 -- 2 452 996) are presented. We explain the periodic variations of the brightness of YY Her by the eclipses of the components in the system. The model with a deformed (non-homogeneous) envelope, surrounding the white dwarf is discussed. In addition, we observed a flare in about JD 2 452 440, during the primary minimum, that was later followed by an energetic outburst in JD 2 452 700.[PUBLICATION ABSTRACT]
Bibliography:ObjectType-Article-1
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ISSN:0004-640X
1572-946X
DOI:10.1007/s10509-006-9138-4