The main-sequence rotation���colour relation in the Coma Berenices open cluster
نویسندگان
چکیده
منابع مشابه
Lithium in the Coma Berenices open cluster
Lithium abundances, radial velocities, and rotational velocities are reported for 20 candidate F, G and K stars of the sparse Coma Berenices open cluster. All the stars are proper-motion selected, and our radial velocities support the membership credentials of at least 12 of the candidates. Combining our data with that in the literature, we have a close-to-complete census of Li abundances for l...
متن کاملNew stellar members of the Coma Berenices open star cluster
We present the results of a survey of the Coma Berenices open star cluster (Melotte 111), undertaken using proper motions from the USNO-B1.0 and photometry from the 2MASS Point Source catalogues. We have identified 60 new candidate members with masses in the range 1.007M⊙<M<0.269M⊙. For each we have estimated a membership probability by extracting control clusters from the proper motion vector ...
متن کاملA massive white dwarf member of the Coma Berenices Open Cluster
We report the identification, from a photometric, astrometric and spectroscopic study, of a massive white dwarf member of the nearby, approximately solar metalicity, Coma Berenices open star cluster (Melotte 111). We find the optical to near-IR energy distribution of WD1216+260 to be entirely consistent with that of an isolated DA and determine the effective temperature and surface gravity of t...
متن کاملThe Stellar Populations of Praesepe and Coma Berenices
We present the results of a stellar membership survey of the nearby open clusters Praesepe and Coma Berenices. We have combined archival survey data from the SDSS, 2MASS, USNOB1.0, and UCAC-2.0 surveys to compile proper motions and photometry for ∼5 million sources over 300 deg. Of these sources, 1010 stars in Praesepe and 98 stars in Coma Ber are identified as candidate members with probabilit...
متن کاملThe Coma Cluster in Relation to Its Environs
Clusters of galaxies are often embedded in larger-scale superclusters with dimensions of tens or perhaps even hundreds of Mpc. Observational and theoretical evidence suggest an important connection between cluster properties and their surroundings, with cluster formation being driven primarily by the infall of material along large-scale filaments. Nowhere is this connection more obvious than th...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2009
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2009.15476.x