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Title:
Evolution of Young Stars in the Large Massive Cluster Cep OB3b
Authors:
Allen, Thomas
Publication:
Chandra proposal ID #10200738
Publication Date:
09/2008
Origin:
CXO
Comment:
Chandra proposal ID #10200738
Bibliographic Code:
2008cxo..prop.2529A

Abstract

We propose deep ASIC-I imaging of the CepOB3b cluster, a large (> 1000 member), 5 Myr old cluster, 700 pc from the Sun. Spitzer observations have mapped the full extent of CepOB3b, showing two distinct sub-clusters. We will target each sub-clusters to identify the young stars without disks and determine the X-ray properties of the stars. These observations will probe the properties of a young cluster and its constituent stars at a poorly studied evolutionary age, thereby complementing the COUP survey of the 2 Myr old Orion Nebula Cluster. We will study the dynamical evolution of clusters emerging from their parental clouds, the evolution of stellar coronae, the affect of circumstellar disks on the X-ray emission, and the role of X-rays in creating inner holes in disks.
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