Imaging the inner regions of debris disks with near-infrared interferometry

D. Defrère O. Absil 1 J. C. Augereau 2 E. Di Folco 3 V. Coudé Du Foresto 4 J. B. Le Bouquin 2 A. Mérand 5 B. Mollier
3 aMOR 2011
L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux, OASU - Observatoire aquitain des sciences de l'univers, LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac], Université Sciences et Technologies - Bordeaux 1
Abstract : Most debris disks resolved so far show extended structures located at tens to hundreds AU from the host star, and are more analogous to our solar system's dusty Kuiper belt than to the AU-scale zodiacal disk inside our solar system's asteroid belt. Over the last few years however, a few hot debris disks have been detected around a handful of main sequence stars thanks to the advance of infrared interferometry. The grain populations derived from these observations are quite intriguing, as they point towards very high dust replenishment rates, high cometary activity or major collisional events. In this talk, we review the ongoing efforts to detect bright exozodiacal disks with precision near-infrared interferometry in both hemispheres with CHARA/FLUOR and VLTI/PIONIER. We discuss preliminary statistical trends on the occurrence of bright exozodi around nearby main sequence stars and show how this information could be used to constrain the global architecture and evolution of debris disks.
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Contributeur : Marie-Paule Pomies <>
Soumis le : mercredi 1 février 2012 - 12:14:27
Dernière modification le : jeudi 21 mars 2019 - 13:13:53



D. Defrère, O. Absil, J. C. Augereau, E. Di Folco, V. Coudé Du Foresto, et al.. Imaging the inner regions of debris disks with near-infrared interferometry. EPSC-DPS Joint Meeting 2011, 2011, Nantes, France. pp.1084, 2011. 〈hal-00665167〉



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