New Debris Disks Around Solar-Type Stars Imaged with the HST/ACS Coronagraph

Details New Debris Disks Around Solar-Type Stars Imaged with the HST/ACS Coronagraph New Debris Disks Around Solar-Type Stars Imaged with the HST/ACS Coronagraph

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20911004k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #110.04; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

We present V-band images of debris disks surrounding two nearby solar-type stars imaged for the first time in scattered light with the Hubble Space Telescope Advanced Camera for Surveys coronagraph. The disks were first resolved in the infrared by the Spitzer Space Telescope. The first disk appears as an inclined ring with inner and outer radii of 130 and 170 AU, with the outer edge apparently truncated. The scattering by the dust grains appears isotropic (g<0.1) and there is no evidence for any significant asymmetries. This may be the faintest disk imaged with HST. The second disk is seen out to a noise-limited distance of 100 AU and may also be a ring.

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