期刊
ASTRONOMISCHE NACHRICHTEN
卷 327, 期 1, 页码 14-16出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asna.200510489
关键词
stars : formation; stars : low-mass, brown dwarfs; stars : pre-main sequence; infrared : stars
The Serpens cloud core is populated by a young, low-mass stellar cluster with members in many different evolutionary stages. We revisit the near-IR properties of the cluster in this contribution. A total of 188 near-IR sources are identified, including new members suggested in this work. Near-IR colour-magnitude and colour-colour diagrams allow us to suggest 42 objects among the cluster members as brown dwarf candidates. A considerable fraction of them present near-IR excesses which indicates that many of these very low mass objects are still surrounded by prominent dust accretion disks.
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