Physics
Scientific paper
Aug 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1158..325c&link_type=abstract
EXOPLANETS AND DISKS: THEIR FORMATION AND DIVERSITY: Proceedings of the International Conference. AIP Conference Proceedings, V
Physics
Circumstellar Shells, Clouds, And Expanding Envelopes, Circumstellar Masers, Spectroscopy And Spectrophotometry, Space-Based Ultraviolet, Optical, And Infrared Telescopes, Interferometry
Scientific paper
Exozodiacal dust plays an important role for the feasibility and dimensioning of future space missions dedicated to the spectroscopic analysis of the atmosphere of Earth-like planets. Thus, a survey of dust clouds around potential targets is called for in order to reduce the need for such observations using space-based missions and not waste time on sources where exo-Earths cannot be detected. Aladdin is an infrared (L band) nulling interferometer optimized for this objective. Although relatively modest in size (two 1-meter class telescopes on a maximum baseline of 32 meters), it takes advantage of the favorable atmospheric conditions of the Antarctic plateau to achieve a sensitivity better than what can be obtained with a pair of 8-meter-class telescopes at a more temperate site. Beyond its main mission, the science potential of Aladdin extends to the study of all kinds of faint circumstellar material (dust and/or molecules) around young, old or main-sequence stars.
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