Open clusters housing classical Cepheids in <i>Gaia</i> DR3
Chaojie Hao, Ye Xu, Zhenyu Wu, Z. H. Lin, Shuaibo Bian, Yuting Li, D. J. Liu
Abstract
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.
Topics & Concepts
Cepheid variableOpen clusterPhysicsAstrophysicsCluster (spacecraft)AstronomyStar clusterCOSMIC cancer databaseGalaxyStarsProgramming languageComputer scienceStellar, planetary, and galactic studiesAstrophysics and Star Formation StudiesAstronomy and Astrophysical Research