Other
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hst..prop11123b&link_type=abstract
HST Proposal ID #11123. Cycle 16
Other
Scientific paper
We propose a search for line emission from photoevaporating protoplanetary disks in the Massive Embedded Cluster RCW 38. These disks would be analogous to the "proplyds" discovered in the Orion Nebula: disks around young low mass stars which are being photoionized by a nearby O star. We will search for these disks in RCW 38 using narrowband imaging in the lines of Paschen alpha and molecular hydrogen 1-0 S1 with NICMOS. The RCW 38 region is an excellent target for determining whether proplyds are observable in large numbers outside of Orion. It is a young embedded cluster hosting a few hundred low mass young stars with a large percentage showing infrared excess indicating the presence of disks. About 100 of these stars are found within 0.1 pc of the central O5 star, and the cluster is located within a cleared cavity 0.2 pc in size, embedded within a molecular cloud, exposing the cluster members directly to the UV radiation from the O star. Unlike Orion, but like many other young clusters, RCW 38 is not seen in visible light, and infrared imaging is needed. The best line in the infrared for revealing proplyds is the Paschen alpha line, which is not detectable from the ground. Only HST is able to perform these observations. From these observations we will estimate the lifetime of the evaporating disks, and ascertain whether these disks will survive long enough to form planets.;
No associations
LandOfFree
A NICMOS Survey for Proplyds in the RCW 38 Massive Embedded Cluster does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A NICMOS Survey for Proplyds in the RCW 38 Massive Embedded Cluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A NICMOS Survey for Proplyds in the RCW 38 Massive Embedded Cluster will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-780569