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New stellar and substellar candidate members of the Coma Berenices open star cluster

Citation

Casewell, SL and Jameson, RF and Dobbie, PD, New stellar and substellar candidate members of the Coma Berenices open star cluster, Astronomische Nachrichten, 326, (10) pp. 991-995. ISSN 0004-6337 (2005) [Refereed Article]

Copyright Statement

Copyright 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

DOI: doi:10.1002/asna.200510435

Abstract

We present the results of a survey of the open star cluster Melotte 111 in Coma Berenices, undertaken using the USNO-B1.0 and 2MASS Point Source catalogues. On the basis of their astrometric and photometric properties, we have identified 60 new candidate members with masses in the range 1.007 < M < 0.269 M⊙. We estimate a membership probability for each by extracting control clusters from the proper motion vector diagram. All 60 are found to have greater than 60 per cent probability of being cluster members, which if they are confirmed as members, more than doubles the number of known cluster members. We also have I and Z photometry for 100 low mass candidate members of the cluster, 13 of which we suggest may be brown dwarfs.

Item Details

Item Type:Refereed Article
Keywords:open clusters and associations: individual (Melotte 111); color-magnitude diagrams, HR diagram; stars: low-mass; brown dwarfs
Research Division:Physical Sciences
Research Group:Astronomical and Space Sciences
Research Field:Stellar Astronomy and Planetary Systems
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Dobbie, PD (Dr Paul Dobbie)
ID Code:81099
Year Published:2005
Web of Science® Times Cited:2
Deposited By:Mathematics and Physics
Deposited On:2012-11-22
Last Modified:2013-06-25
Downloads:0

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