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

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

2008-11-17

arxiv.org/abs/0811.2713v2

Astrophys.J.Lett.690:L65-L68,2009

Astronomy and Astrophysics

Astrophysics

13 page, 3 figures, published in Astrophysical Journal Letters, AASTEX Format, figure 3 has additional data which improved the

Scientific paper

10.1088/0004-637X/690/1/L65

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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