Resolving Protoplanetary Disks at Millimeter Wavelengths

Details Resolving Protoplanetary Disks at Millimeter Wavelengths Resolving Protoplanetary Disks at Millimeter Wavelengths

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934405k&link_type=abstract

American Astronomical Society, AAS Meeting #219, #344.05

Astronomy and Astrophysics

Astronomy

Scientific paper

The physical properties of protoplanetary disks, which harbor the initial conditions of planet formation, are mainly studied by interferometers at millimeter/submillimeter wavelengths tracing dust thermal emission. We have observed six protoplanetary disks at 1.3 and 2.7 mm continua using the Combined Array for Research in Millimeter-wave Astronomy with an excellent image fidelity and angular resolution up to 0.13 arcsecond. Through visibility modeling in Bayesian inference, we have constrained the physical properties such as density distributions, dust properties, masses, sizes, etc. based on two disk models: power-law disk and viscous accretion disk models. In addition, we compare the two disk models quantitatively. As a progress from the previous work (Kwon's dissertation), we have applied more realistic data uncertainties and temperature distributions for the modeling, as well as added more data at high angular resolution.

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