Star Formation in Clusters: Early Subclustering in the Serpens Core | Zendy

L. Testi | Zendy; Anneila I. Sargent | Zendy; L. Olmi | Zendy; Joseph S. Onello | Zendy

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Star Formation in Clusters: Early Subclustering in the Serpens Core

Author(s) -

L. Testi,

Anneila I. Sargent,

L. Olmi,

Joseph S. Onello

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312858

Subject(s) - serpens , astrophysics , physics , cluster (spacecraft) , homogeneous , star formation , fragmentation (computing) , star cluster , core (optical fiber) , astronomy , stars , biology , ecology , computer science , optics , thermodynamics , programming language

We present high resolution interferometric and single dish observations ofmolecular gas in the Serpens cluster-forming core. Star formation does notappear to be homogeneous throughout the core, but is localised in spatially-and kinematically-separated sub-clusters. The stellar (or proto-stellar)density in each of the sub-clusters is much higher than the mean for the entireSerpens cluster. This is the first observational evidence for the hierarchicalfragmentation of proto-cluster cores suggested by cluster formation models.Comment: 11 pages, 3 Figures, ApJ Letters in pres

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