Symbiotic stars in Galactic open clusters

Fuente: arXiv
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Auteurs principaux: Kueß, Lukas, Paunzen, Ernst
Format: Preprint
Publié: 2025
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author Kueß, Lukas
Paunzen, Ernst
author_facet Kueß, Lukas
Paunzen, Ernst
contents 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 problematic 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 metallicity 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 candidates 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.
format Preprint
id arxiv_https___arxiv_org_abs_2507_21994
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Symbiotic stars in Galactic open clusters
Kueß, Lukas
Paunzen, Ernst
Solar and Stellar Astrophysics
Astrophysics of Galaxies
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 problematic 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 metallicity 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 candidates 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.
title Symbiotic stars in Galactic open clusters
topic Solar and Stellar Astrophysics
Astrophysics of Galaxies
url https://arxiv.org/abs/2507.21994