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Published February 2015 | Published + Submitted
Journal Article Open

Target Selection for the LBTI Exozodi Key Science Program


The Hunt for Observable Signatures of Terrestrial planetary Systems (HOSTS) on the Large Binocular Telescope Interferometer will survey nearby stars for faint emission arising from ~300 K dust (exozodiacal dust), and aims to determine the exozodiacal dust luminosity function. HOSTS results will enable planning for future space telescopes aimed at direct spectroscopy of habitable zone terrestrial planets, as well as greater understanding of the evolution of exozodiacal disks and planetary systems. We lay out here the considerations that lead to the final HOSTS target list. Our target selection strategy maximizes the ability of the survey to constrain the exozodi luminosity function by selecting a combination of stars selected for suitability as targets of future missions and as sensitive exozodi probes. With a survey of approximately 50 stars, we show that HOSTS can enable an understanding of the statistical distribution of warm dust around various types of stars and is robust to the effects of varying levels of survey sensitivity induced by weather conditions.

Additional Information

© 2015 American Astronomical Society. Received 2014 October 2; accepted 2014 December 12; published 2015 January 27. The Large Binocular Telescope Interferometer is funded by the National Aeronautics and Space Administration as part of its Exoplanet Exploration Program. This work of G.M.K. and M.C.W. was supported by the European Union through ERC grant No. 279973. This research has made use of the SIMBAD database and the VizieR catalog access tool, CDS, Strasbourg, France and the Washington Double Star Catalog maintained at the U.S. Naval Observatory.

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Published - 0067-0049_216_2_24.pdf

Submitted - 1501.01319v1.pdf


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