Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.3806p&link_type=abstract
American Astronomical Society, ESS meeting #2, #38.06
Astronomy and Astrophysics
Astronomy
Scientific paper
The Wide Field Infrared Survey Explorer (WISE) has just completed a sensitive all-sky survey in photometric bands at 3.4, 4.6, 12, and 22 microns. We report on an initial investigation of main sequence Hipparcos and Tycho catalog stars with 22 micron emission in excess of photospheric levels. This warm excess emission traces material in the circumstellar region likely to host terrestrial planets and is preferentially found in young systems with ages < 1 Gyr. Several hundred warm debris disk candidates, most of which are new,are detected among A-M stars within 120 pc. We are in the process of obtaining spectra to determine spectral types and activity level of these stars and have initiated observations with Keck, Herschel, and HST to characterize the dust, multiplicity, and substellar companions of these systems. In this contribution, we will discuss source selection methods and individual examples from among the WISE debris disk candidates, as well as the latest results from followup observations.
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