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. (2013). Unraveling the Mystery of Exozodiacal Dust. Proceedings of the International Astronomical Union, 8(S299), pp. 338-339. Cambridge University Press 10.1017/S1743921313008843

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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.

Item Type:

Journal Article (Further Contribution)

Division/Institute:

10 Strategic Research Centers > Center for Space and Habitability (CSH)

UniBE Contributor:

Coudé Du Foresto, Vincent

Subjects:

500 Science > 520 Astronomy

ISSN:

1743-9213

Publisher:

Cambridge University Press

Language:

English

Submitter:

Marceline Brodmann

Date Deposited:

17 Jul 2020 10:30

Last Modified:

28 Jul 2020 09:26

Publisher DOI:

10.1017/S1743921313008843

BORIS DOI:

10.7892/boris.115914

URI:

https://boris.unibe.ch/id/eprint/115914

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