Fragmentation Of Cold Atlasgal Dust Clumps

Details Fragmentation Of Cold Atlasgal Dust Clumps Fragmentation Of Cold Atlasgal Dust Clumps

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21711301p&link_type=abstract

American Astronomical Society, AAS Meeting #217, #113.01; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

The APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) has revealed a large sample of dust continuum sources that are potential sites of high-mass star/cluster formation. This dataset, when combined with 70 and 24 micron data from the Spitzer MIPSGAL survey allows identification of sources at the earliest phases of star formation. One of the open questions in high-mass star formation is the nature of fragmentation in early evolutionary phases. To address this question, we have observed a sample of high-mass ATLASGAL sources that have no counterpart at 70 micron or 24 micron in MIPSGAL, at 345 GHz using the SMA in its compact configuration. The sources are chosen to have kinematic distances less than 5 kpc, and consequently our observations probe scales down to 0.1 pc. We present initial results of this work and discuss the mass assembly from large scale dust clumps to small scale cores.

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