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Unraveling the Mystery of Exozodiacal Dust

Published online by Cambridge University Press:  06 January 2014

S. Ertel ,
J.-C. Augereau ,
P. Thébault ,
O. Absil ,
A. Bonsor ,
D. Defrère ,
Q. Kral ,
J.-B. Le Bouquin ,
J. Lebreton  and
V. Coudé du Foresto
S. Ertel
Affiliation:
IPAG, UJF Grenoble
J.-C. Augereau
Affiliation:
IPAG, UJF Grenoble
P. Thébault
Affiliation:
LESIA, Observatoire de Paris
O. Absil
Affiliation:
Université de Liège
A. Bonsor
Affiliation:
IPAG, UJF Grenoble
D. Defrère
Affiliation:
Steward Observatory
Q. Kral
Affiliation:
LESIA, Observatoire de Paris
J.-B. Le Bouquin
Affiliation:
IPAG, UJF Grenoble
J. Lebreton
Affiliation:
IPAG, UJF Grenoble
V. Coudé du Foresto
Affiliation:
LESIA, Observatoire de Paris Bern University
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Abstract

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Exozodiacal dust clouds are thought to be the extrasolar analogs of the Solar System's zodiacal dust. Studying these systems provides insights in the architecture of the innermost regions of planetary systems, including the Habitable Zone. Furthermore, the mere presence of the dust may result in major obstacles for direct imaging of earth-like planets. Our EXOZODI project aims to detect and study exozodiacal dust and to explain its origin. We are carrying out the first large, near-infrared interferometric survey in the northern (CHARA/FLUOR) and southern (VLTI/PIONIER) hemispheres. Preliminary results suggest a detection rate of up to 30% around A to K type stars and interesting trends with spectral type and age. We focus here on presenting the observational work carried out by our team.

Keywords

infrared: starscircumstellar mattersurveystechniques: interferometrictechniques: high angular resolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S299: Exploring the Formation and Evolution of Planetary Systems , June 2013 , pp. 338 - 339
Copyright
Copyright © International Astronomical Union 2013 

References

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