Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21534605a&link_type=abstract
American Astronomical Society, AAS Meeting #215, #346.05; Bulletin of the American Astronomical Society, Vol. 42, p.527
Astronomy and Astrophysics
Astronomy
Scientific paper
Direct observations of the primordial reservoirs of planet-building material -- the disks around young stars -- play a critical role in developing theoretical models of planet formation mechanisms and their efficiencies. We present a state-of-the-art high angular resolution (0.3" = 40 AU) SubMillimeter Array survey of the 345 GHz (870 microns) dust continuum emission from nearby, young protoplanetary and transition disks. Two-dimensional radiative transfer calculations are used to simultaneously fit the observed continuum visibilities and broadband SED for each disk with a parametric structure model. Compared to previous work, significant upgrades in the modeling, data quality, and angular resolution for these disks provide improved constraints on key structure parameters, particularly those that describe the spatial distribution of mass. Those modeling results are used to help characterize the viscous properties and the likelihood of future (and perhaps even past) planet formation in these disks.
Andrews Sean M.
Dullemond Cornelis Petrus
Hughes Mimi
Qi Chong
Wilner David
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