Star Formation and Environment: Comparing Three Large 1.1 mm Surveys of Perseus, Ophiuchus, and Serpens

Details Star Formation and Environment: Comparing Three Large 1.1 mm Surveys of Perseus, Ophiuchus, and Serpens Star Formation and Environment: Comparing Three Large 1.1 mm Surveys of Perseus, Ophiuchus, and Serpens

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20719601e&link_type=abstract

American Astronomical Society Meeting 207, #196.01; Bulletin of the American Astronomical Society, Vol. 37, p.1494

Astronomy and Astrophysics

Astronomy

Scientific paper

We compare the properties of the 1.1 mm continuum emission in three star-forming molecular clouds. We have completed large surveys of Perseus (Enoch et al. 2006), Ophiuchus (Young et al. in prep), and Serpens (Glenn et al. in prep) with Bolocam at the CSO, down similar flux density limits. By surveying several large regions with the same instrument we are able to eliminate biases that may result from observations with different instruments or at different wavelengths. In addition, our observations cover the largest areas to date in the millimeter or submillimeter for each cloud. Here we compare the distribution of 1.1 mm sources in both mass and space, to determine if there is a difference with local environment in the 1.1 mm core mass function, spatial clustering properties, or percentage of mass in dense cores at different Av levels. Preliminary results suggest that the core mass distributions are quite similar in Perseus and Ophiuchus, but the minimum extinction level at which cores are found is very different, and spatial clustering is significant on larger scales in Perseus. These data are complementary to the Spitzer "Cores to Disks" (c2d) Legacy project, which has observed the same cloud areas at Infrared wavelengths from 3.6 to 160 microns. Where possible we will use c2d data to further our analysis, separating prestellar cores from early protostars and older objects in each cloud.

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