A Resolved Ring of Debris Dust around the Solar Analog HD 107146
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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 2009
- DOI:
- 10.1088/0004-637X/690/1/L65
- arXiv:
- arXiv:0811.2713
- Bibcode:
- 2009ApJ...690L..65C
- Keywords:
-
- circumstellar matter;
- planetary systems;
- stars: individual: HD 107146;
- Astrophysics
- E-Print:
- 13 page, 3 figures, published in Astrophysical Journal Letters, AASTEX Format, figure 3 has additional data which improved the signal to noise