Completing the Census of Embedded Population in the Vela Molecular Ridge Cloud-D

Details Completing the Census of Embedded Population in the Vela Molecular Ridge Cloud-D Completing the Census of Embedded Population in the Vela Molecular Ridge Cloud-D

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50109f&link_type=abstract

Spitzer Proposal ID #50109

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Scientific paper

The Vela Molecular Ridge is a molecular cloud in the galactic plane at high galactic longitude (l~260-275 deg). Part of a vast complex of star forming region, it hosts a large number of young embedded sources, both in cluster and isolated, as well as mm-emission peaks associated with gaseous filamentary structures. These characteristics makes it perhaps the best regions for testing scenarios of clustered star formation outside the solar circle. In Cycle 3 we have obtained MIPS observations of the cloud, that have led to important results concerning the statistics of embedded cores and their relationship with the diffuse gas and dust in the region. We have also obtained partial coverage with IRAC for 4 out of 6 of the clusters in the complex. We propose here to: (1) complete the IRAC coverage for the remaining 2 clusters, (2) obtain IRAC maps of two background fields in a region devoted of molecular gas and dust and (3) measure the photometry of a cluster that was saturated in our previous IRAC images using the subarray mode. These new observations are crucial for the completeness of our census of the YSO population in the cloud, and to remove biases in the statistics of the distribution of the sources detected in the previous observations.

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