A Resolved Ring of Debris Dust Around the Solar Analog HD 107146

S. A. Corder , J. M. Carpenter , A. I. Sargent , B. A. Zauderer , M. C. H. Wright , S. White , D. P. Woody , P. Teuben

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S. L. Scott M. W. Pound R. L. Plambeck J. W. Lamb J. Koda M. W. Hodges D. W. Hawkins D. C.-J. Bock

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classification 🌌 astro-ph

keywords dustemissionringarcsecaroundcarmadebrisimages

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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 $\lambda$1.3 mm and the CSO at $\lambda$350 $\mu$m. Both images show that the dust emission extends over an $\sim$10\arcsec diameter region. The high resolution (3\arcsec) CARMA image further reveals that the dust is distributed in a partial ring with significant decrease in flux inward of 97 AU. Two prominent emission peaks appear within the ring separated by $\sim$140 degrees in 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 $\sim$45-75 AU.

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A Resolved Ring of Debris Dust Around the Solar Analog HD 107146

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