Reference : Direct imaging of Earth-like planets: why we care about exozodis
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/81502
Direct imaging of Earth-like planets: why we care about exozodis
English
Absil, Olivier mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Defrère, D. [Max-Planck-Institut fur Radioastronomie (Belgium)]
Roberge, A. [NASA Goddard Space Flight Ctr. (USA)]
Augereau, J.-C. [Lab. d'Astrophysique de Grenoble, CNRS, Univ. Joseph Fourier (France)]
Coudé Du Foresto, V. [LESIA, CNRS, Observatoire de Paris à Meudon (France)]
Hanot, Charles [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Stark, C. [Univ. of Maryland, College Park (USA)]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Jul-2010
Optical and Infrared Interferometry II
Danchi, W. C.
Delplancke, F.
Rajagopal, J. K.
SPIE
Proceedings of the SPIE, volume 7734
0L.1-0L.10
No
Yes
International
Bellingham
WA, USA
Astronomical Telescopes and Instrumentation 2010: Optical and Infrared Interferometry II
27/06/2010 - 2/07/2010
SPIE
San Diego
CA, USA
[en] The presence of large amounts of exozodiacal dust around nearby main sequence stars is considered as a potential threat for the direct detection of Earth-like exoplanets (exoEarths) with future space-based coronagraphic and interferometric missions. In this paper, we estimate the amount of exozodiacal light that can be tolerated around various stellar types without jeopardizing the detection of exoEarths with a space-based visible coronagraph or a free-flying mid-infrared interferometer. We also address the possible effects of resonant structures in exozodiacal disks. We then review the sensitivity of current ground-based interferometric instruments to exozodiacal disks, based on classical visibility measurements and on the nulling technique. We show that the current instrumental performances are not sufficient to help prepare future exoEarth imaging missions, and discuss how new groundor space-based instruments could improve the current sensitivity to exozodiacal disks down to a suitable level.
Researchers
http://hdl.handle.net/2268/81502
10.1117/12.858257
http://adsabs.harvard.edu/abs/2010SPIE.7734E..17A

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