Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.3805p&link_type=abstract
American Astronomical Society, ESS meeting #2, #38.05
Astronomy and Astrophysics
Astronomy
Scientific paper
With 350µm observations from the CSO, we are pursuing programs to investigate the debris disk encircling the HR 8799 planetary system and the protoplanetary disks around low mass members of Taurus, spanning the stellar/substellar limit. For the HR 8799 disk, we have measured the first spatially resolved map at 350um. The 350um map exhibits an arc of emission with a bright clump at a distance consistent with that expected from simulations of dust trapped in a 2:1 resonance with the outermost planet. The distribution and location of the dust is a powerful tool to understand the migration and eccentricity history of the planets. The submm map suggests that the planets migrated to their current locations and that the eccentricity is low, if the dust is trapped in a resonance. For the Taurus study, our sample spans the M2-M9 range. The submm data reveals the presence of outer disk material and enables an estimate of key parameters such as mass and grain growth, important parameters for assessing the viability of planet formation around these low mass objects.
Ayliffe B.
Bate Michael
Bulger Joanna
Carpenter John
Dowell Darren
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