Symbiotic Binary YY Her Eclipses, Flares and Outbursts

Details Symbiotic Binary YY Her Eclipses, Flares and Outbursts Symbiotic Binary YY Her Eclipses, Flares and Outbursts

Aug 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap%26ss.304..307h&link_type=abstract

Astrophysics and Space Science, Volume 304, Issue 1-4, pp. 307-309

Astronomy and Astrophysics

Astrophysics

Stars: Binaries: Symbiotic, Stars: Individual: Yy Her

Scientific paper

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.

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