Protoplanetary disks in the (sub)millimeter: paving the road to ALMA

Details Protoplanetary disks in the (sub)millimeter: paving the road to ALMA Protoplanetary disks in the (sub)millimeter: paving the road to ALMA

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010sf2a.conf...21g&link_type=abstract

SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: S. Boissier, M. Heydari-

Astronomy and Astrophysics

Astrophysics

Protoplanetary Disks, Planet-Disk Interactions, Hydrodynamics, Submillimeter: Planetary Systems

Scientific paper

ALMA (Atacama Large Millimeter/submillimeter Array) holds the promise of revolutionizing our view of the Universe and in particular that of the planet formation process via unprecedented observations of protoplanetary disks. Preparing for its arrival is of utmost importance to ensure an optimal exploitation of its capabilities. In that view, we are following two roads. First, we are undertaking a observing campaign at millimeter wavelengths of southern disks with ATCA (Autralia Telescope Compact Array) to complement our existing multi-wavelength, multi-technique data and accurately model these sources to prepare followup observations with ALMA. Second, we numerically model the evolution of dust in the presence of an embedded planet in a typical Classical T Tauri star (CTTS) disk. We find that a system with a given stellar, disk and planetary mass will have a completely different appearance depending on the grain size and that such differences will be detectable in the millimeter domain with ALMA. Dust accumulates at the edges of the planetary gap where its density exceeds that of the gas phase, gap edges therefore appear as potential sites for the formation of additional planets.

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