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Unraveling the Mystery of Exozodiacal Dust

Ertel, S. ; Augereau, J.-C ; Thébault, P. ; Absil, O. ; Bonsor, A. ; Defrère, D. ; Kral, Q. ; Le Bouquin, J.-B ; Lebreton, J. ; Coudé du Foresto, V.

In: Proceedings of the International Astronomical Union, 2013, vol. 8, no. S299, p. 338-339

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    Titel
    • Unraveling the Mystery of Exozodiacal Dust
    Autor
    • Ertel, S.. IPAG, UJF Grenoble
    • Augereau, J.-C. IPAG, UJF Grenoble
    • Thébault, P.. LESIA, Observatoire de Paris
    • Absil, O.. Université de Liège
    • Bonsor, A.. IPAG, UJF Grenoble
    • Defrère, D.. Steward Observatory
    • Kral, Q.. LESIA, Observatoire de Paris
    • Le Bouquin, J.-B. IPAG, UJF Grenoble
    • Lebreton, J.. IPAG, UJF Grenoble
    • Coudé du Foresto, V.. LESIA, Observatoire de Paris
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Proceedings of the International Astronomical Union, 2013, vol. 8, no. S299, p. 338-339. Cambridge University Press
    Andere elektronische Ausgabe
    OAI-PMH-ID
    • oai:doc.rero.ch:290531
    Summary
    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