The latest Gaia Data Release 3 provides an opportunity to expand the census of Galactic open clusters harboring classical Cepheid variables, thereby bolstering the cosmic distance scale. A comprehensive analysis yielded a total of 50 classical Cepheids associated with 45 open clusters, of which 39 open cluster-classical Cepheid pairs are considered probable, with the remaining 11 pairs considered improbable but worth following up. Two previously identified clusters by us possibly host classical Cepheids (OC-0125/V1788 Cyg and OC-0675/OGLE-BLG-CEP-114). In addition, we identify 38 new open cluster candidates within the Galactic disk.
@article{arxiv.2210.01521,
title = {Open clusters housing classical Cepheids in Gaia DR3},
author = {C. J. Hao and Y. Xu and Z. Y. Wu and Z. H. Lin and S. B. Bian and Y. J. Li and D. J. Liu},
journal= {arXiv preprint arXiv:2210.01521},
year = {2022}
}
Comments
14 pages, 4 figures, Accepted for publication in A&A