Other
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..356..213w&link_type=abstract
Revealing the Molecular Universe: One Antenna is Never Enough ASP Conference Series, Vol. 356, Proceedings of the Conference Hel
Other
3
Scientific paper
We highlight two recent studies of circumstellar disks in the Taurus and Orion star forming regions. Using the JCMT and CSO, we measured disk fluxes in Taurus over a wide range of submillimeter wavelengths and determined the frequency dependence of the dust opacity. We found clear evidence for a systematic change in their behavior with time, most readily explained by grain growth. Using the SMA, we observed the protoplanetary disks (proplyds) in the Orion Trapezium Cluster. The combination of high resolution, high frequency and high sensitivity that this instrument provides made it possible to resolve disks from one another, distinguish their emission from background cloud material and surrounding ionized gas, and to detect thermal dust emission. This allowed us to make the first mass measurements of the proplyds and to assess their viability for planet formation.
Andrews Sean M.
Williams Jean-Pierre
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