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2009ApJ...690L..65C - Astrophys. J., 690, L65-L68 (2009/January-1)
A resolved ring of debris dust around the solar analog HD 107146.
CORDER S., CARPENTER J.M., SARGENT A.I., ZAUDERER B.A., WRIGHT M.C.H., WHITE S.M., WOODY D.P., TEUBEN P., SCOTT S.L., POUND M.W., PLAMBECK R.L., LAMB J.W., KODA J., HODGES M., HAWKINS D. and BOCK D.C.-J.
Abstract (from CDS):
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.
Abstract Copyright: ∼
Journal keyword(s): circumstellar matter - planetary systems - stars: individual: HD 107146
Simbad objects: 5
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