Distinct Asteroidal and Kuiperoidal Belts around Eta Corvi

Details Distinct Asteroidal and Kuiperoidal Belts around Eta Corvi Distinct Asteroidal and Kuiperoidal Belts around Eta Corvi

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21340907b&link_type=abstract

American Astronomical Society, AAS Meeting #213, #409.07; Bulletin of the American Astronomical Society, Vol. 41, p.209

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Based on its spectral energy distribution, the bright debris disk around the nearby solar-type star eta Corvi is known to contain dust with temperatures ranging from <50; to >300; K. We present new observations of this system from the Spitzer Space Telescope, the Caltech Submillimeter Observatory, and the Keck Interferometer Nuller. The long-wavelength images (Spitzer/MIPS at 70 um and CSO/SHARCII at 350 um) both resolve the cold outer disk with a radius of 150 AU. At shorter wavelengths (10 um) the Keck Nuller detects emission from the warm dust, constraining its location to less than a few AU. A full model reveals a system in some ways analogous to our own, with a source of cold dust in the outer system completely distinct from the warm rocky material at 1 AU.

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