| Description |
We propose deep PACS 70 and 160 micron imaging of the Cep OB3b cluster.
After the Orion Nebula Cluster (ONC), Cep OB3b cluster is the 2nd nearest,
large (2000 member), young (3-5 Myr) cluster to the Sun. It is older and
more evolved than the ONC, making it a superb laboratory for studying the
evolution of disks in the cluster environment. The cluster contains two
distinct, coeval sub-clusters. Spitzer observations show a lower disk fraction
in the sub-cluster containing an O7 star, suggesting that disks are being
photoevaporated and destroyed by the UV radiation from the O star. The
proposed PACS observations, coupled with near-IR and mid-IR photometry,
will measure the truncation of the remaining disks by UV radiation. With
these data, we will probe the truncation and alteration of disks in an
environment which is likely to be similar to that experienced by the young
Solar Sytem. |
| Publication |
A Multi-band Catalog of 10978 Star Clusters, Associations, and Candidates in the Milky Way . Bica Eduardo et al. . The Astronomical Journal, Volume 157, Issue 1, article id. 12, 14 pp. (2019). . 157 . 10.3847\/1538-3881\/aaef8d . 2019AJ....157...12B ,
Investigation of star formation toward the Sharpless 155 H II region . Huang Ya-Fang et al. . Research in Astronomy and Astrophysics, Volume 14, Issue 10, article id. 1269-1278 (2014). . 14 . 10.1088\/1674-4527\/14\/10\/006 . 2014RAA....14.1269H ,
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