A search for exo-zodiacal dust disks using speckle interferometry at 11.7 microns

Details A search for exo-zodiacal dust disks using speckle interferometry at 11.7 microns A search for exo-zodiacal dust disks using speckle interferometry at 11.7 microns

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998exdu.work..279k&link_type=abstract

Exozodiacal Dust Workshop, p. 279

Physics

Speckle Interferometry, Zodiacal Dust, Stellar Envelopes, Space Observations (From Earth), Infrared Interferometers, Infrared Telescopes, Thermal Emission, Calibrating, Interstellar Matter

Scientific paper

Much of the future study of exo-zodiacal dust will rely on specially designed multi-element interferometers for high angular resolution and dynamic range. But it is already possible to resolve 1-3 AU regions around several of the closest stars with a single-element device: the 10 meter W. M. Keck telescope at Mauna Kea. We have begun a study of nearby stars with this telescope, and using the technique of speckle interferometry to recover the 240 milliarcsecond diffraction limit at 11.7 microns and distinguish extended dust emission from the wings of the stellar image.

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