A RESOLVED RING OF DEBRIS DUST AROUND THE SOLAR ANALOG HD 107146
/ Authors
S. Corder, J. Carpenter, A. Sargent, B. Zauderer, M. Wright, S. White, D. Woody, P. Teuben, S. Scott, M. Pound
and 6 more authors
R. Plambeck, J. Lamb, J. Koda, M. Hodges, D. Hawkins, D. Bock
/ Abstract
We 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.
Journal: The Astrophysical Journal