Wednesday 21 August at 2pm
Russell Redman - HIA
"Multi-Wavelength Studies of a Possible High-Mass
Protostar near the MSX Infra-Red Dark Cloud G79.3+0"
ABSTRACT: "The MSX Infra-Red Dark Clouds (IRDCs) appear to be the dense,
cold interiors of molecular clouds, seen in absorption at 8 microns against
a background of emission from warm dust in the Galactic Plane. Our previous
SCUBA observations show that they contain numerous massive condensations
of very cold dust and gas. Some of these are associated with faint, point-like
emission sources in the MSX images. One of the nearest of these objects
is G79.3+0.3P1. I will present data gathered with SCUBA and RxA3 on the
JCMT, the BIMA interferometer, the MSX satellite, OSCIR on Gemini North,
and the 2MASS sky survey that allows us to identify the source. These data
indicate that it is an Ae/Be star, recently formed on the far side of the
IRDC and still contracting towards the main sequence."
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