Stuartt Corder et al 2009 ApJ 690 L65 doi:10.1088/0004-637X/690/1/L65
Stuartt Corder1,2, John M. Carpenter1, Anneila I. Sargent1, B. Ashley Zauderer3, Melvyn C. H. Wright4, Stephen M. White3, David P. Woody5, Peter Teuben3, Stephen L. Scott5, Marc W. Pound3, Richard L. Plambeck4, James W. Lamb5, Jin Koda1, Mark Hodges5, David Hawkins5 and Douglas C.-J. Bock6
Show affiliationsWe present resolved images of the dust continuum emission from the debris disk around the young (80-200 Myr) solar-type star HD 107146 with CARMA at λ = 1.3 mm and the CSO at λ = 350 μ. Both images show that the dust emission extends over an approximately 10'' diameter region. The high-resolution (3'') CARMA image further reveals that the dust is distributed in a partial ring with significant decrease in a flux inward of 97 AU. Two prominent emission peaks appear within the ring separated by ~140° in the position angle. The morphology of the dust emission is suggestive of dust captured into a mean motion resonance, which would imply the presence of a planet at an orbital radius of ~45-75 AU.
circumstellar matter; planetary systems; stars: individual (HD 107146)
97.82.Jw Infrared excess; debris disks; protoplanetary disks; exo-zodiacal dust
97.82.Cp Photometric and spectroscopic detection; coronographic detection; interferometric detection
Issue 1 (2009 January 1)
Received 2008 July 31, accepted for publication 2008 November 12
Published 2008 December 8
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