A Dense Microcluster of Class 0 Protostars in NGC 2264 D-MM1
- Author(s)
- Paula S. Teixeira, Luis A. Zapata, Charles J. Lada
- Abstract
We present sensitive and high angular resolution (~1") 1.3 mm continuum observations of the dusty core D-MM1 in the Spokes cluster in NGC 2264using the Sub millimeter Array. A dense micro cluster of seven Class 0sources was detected in a 20''×20'' regionwith masses between 0.4 and 1.2 Msolar and deconvolved sizes of ~600 AU. We interpret the 1.3 mm emission as arising from the envelopes of the Class 0 protostellar sources. The mean separation of the 11 known sources (SMA Class 0 and previously known infrared sources)within D-MM1 is considerably smaller than the characteristic spacing between sources in the larger Spokes cluster and is consistent with hierarchical thermal fragmentation of the dense molecular gas in this region.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- Universidade Técnica de Lisboa, Max-Planck-Institut für Radioastronomie, Harvard-Smithsonian Center for Astrophysics
- Journal
- The Astrophysical journal Letters
- Volume
- 667
- Pages
- L179-L182
- ISSN
- 2041-8205
- DOI
- https://doi.org/10.1086/522494
- Publication date
- 10-2007
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Keywords
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/d540b0db-7342-4216-ae7e-f6a6cf1a7fc1