Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...208.7304p&link_type=abstract
American Astronomical Society Meeting 208, #73.04
Astronomy and Astrophysics
Astronomy
Scientific paper
The discovery of over 160 extrasolar planets, many with very unusual properties, has driven a renaissance in the study of planet formation. It is likely that Jovian and supra-Jovian planets formed at large distances, migrated towards their central stars, and yet somehow managed to stop short of plunging in. The growing theoretical and observational study of protostellar disks is allowing us to better probe the mechanism(s) of planet formation and migration through disk-gas interactions. In this talk, we explore new insights in mechanisms for determing planetary masses that arise from the presence of turbulence-free, so called dead-zones in protostellar disks. Such regions should be present on scales of up to 15 AU in most disks and should have profound effects on the migration of both terrestrial and Jovian planets - in effect - saving planetary systems. We also explore some obervational consequences of such ideas for observing programmes that can be implemented at the planned new large-scale ground-based facilities; TMT and SKA.
Matsumura Soko
Pudritz Ralph E.
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