NDLI: Warm debris disk candidates from wise

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Warm debris disk candidates from wise

Content Provider	NASA Technical Reports Server (NTRS)
Author	Leisawitz, David Padgett, Deborah Liu, Wilson Stapelfeldt, Karl
Copyright Year	2011
Description	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 a preliminary 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. Nearly a hundred new warm debris disk candidates are detected among FGK stars and 150 A stars within 120 pc. We are in the process of obtaining spectra to determine spectral types and activity level of these stars and are using HST, Herschel and Keck 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.
File Size	32427
Page Count	1
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20120001865
Archival Resource Key	ark:/13960/t02z67083
Language	English
Publisher Date	2011-10-18
Access Restriction	Open
Subject Keyword	Astronomy Surveys Terrestrial Planets Photosphere Selection Hipparcos Satellite A Stars Main Sequence Stars Infrared Radiation Spectra Exhaust Emission Photometry Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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