Symbiotic stars in Galactic open clusters
Lukas Kueß and Ernst Paunzen
Abstract

The age determination of symbiotic stars is essential to put further constraints on models explaining these binary systems. In the Galactic field, this is especially problem- atic because of several limitations due to reddening estimations, for example. We searched for symbiotic stars as members of Galactic open clusters for which the age and overall metal- licity can be determined in a statistical sense. The most recent lists of well-established and candidate symbiotic stars and open clusters were matched, and we found seven good can- didates from which the well-established symbiotic star CQ Dra seems to be a true member of the old open cluster HSC 1224. The colour-magnitude diagrams for the other candidates raise some doubts about membership.

Keywords: symbiotic binaries – open clusters – stellar associations

DOI: To be filled later
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