The Initial Mass Functions of Four Embedded Stellar Clusters | Zendy

A. Leistra | Zendy; A. Cotera | Zendy; James Liebert | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

The Initial Mass Functions of Four Embedded Stellar Clusters

Author(s) -

A. Leistra,

A. Cotera,

James Liebert

Publication year - 2006

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/500641

Subject(s) - physics , initial mass function , astrophysics , luminosity function , stars , extinction (optical mineralogy) , star cluster , galaxy , cluster (spacecraft) , luminosity , sequence (biology) , diagram , hertzsprung–russell diagram , function (biology) , star formation , main sequence , star (game theory) , open cluster , stellar evolution , mathematics , statistics , computer science , chemistry , optics , evolutionary biology , biology , programming language , biochemistry

We present near-infrared $J$, $H$, and $K$ images of four embedded stellarclusters in the Galaxy. We find a significant fraction of pre-main-sequencestars present in at least one of the clusters. For the clusters dominated bymain-sequence stars, we determine the initial mass function (IMF) both by usingthe $K$ luminosity function and a global extinction correction and by derivingindividual extinction corrections for each star based on their placement in the$K$ vs. $H-K$ color-magnitude diagram. Based on our IMFs we find a significantdiscrepancy between the mean IMF derived via the different methods, suggestingthat taking individual extinctions into account is necessary to correctlyderive the IMF for an embedded cluster.Comment: 21 pages, 16 figures, accepted to A

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research