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dc.contributor.authorDefrere, D.
dc.contributor.authorStark, C.
dc.contributor.authorCahoy, K.
dc.contributor.authorBeerer, I.
dc.date.accessioned2017-08-05T15:25:06Z
dc.date.available2017-08-05T15:25:06Z
dc.date.issued2012
dc.identifier.issn0277-786X
dc.identifier.urihttp://hdl.handle.net/1721.1/110928
dc.description.abstractThe inner solar system, where the terrestrial planets formed and evolve, is populated by small grains of dust produced by collisions of asteroids and outgassing comets. At visible and infrared wavelengths, this dust cloud is in fact the most luminous component in the solar system after the Sun itself and the Earth may appear similar to a clump of zodiacal dust to an external observer. Hence, the presence of large amounts of dust in the habitable zone around nearby main-sequence stars is considered as a major hurdle toward the direct imaging of exoEarths with future dedicated space-based telescopes. In that context, we address in this paper the detectability of exoEarths embedded in structured debris disks with future space-based visible coronagraphs and mid-infrared interferometers. Using a collisional grooming algorithm, we produce models of dust clouds that simultaneously and self-consistently handle dust grain dynamics, including resonant interactions with planets, and grain-grain collisions. Considering various viewing geometries, we also derive limiting dust densities that can be tolerated around nearby main-sequence stars in order to ensure the characterization of exoEarths with future direct imaging missions.en_US
dc.language.isoen_USen_US
dc.publisherSPIE - The International Society for Optical Engineeringen_US
dc.subjectastronomical telescopesen_US
dc.subjectcircumstellar matteren_US
dc.subjectcoronagraphsen_US
dc.subjectcosmic dusten_US
dc.subjectextrasolar planetsen_US
dc.subjectinfrared astronomyen_US
dc.titleDirect imaging of exoEarths embedded in clumpy debris disksen_US
dc.typeArticleen_US
dc.identifier.citationDefrere, D., Stark, C., Cahoy, K., & Beerer, I. (2012). Direct imaging of exoEarths embedded in clumpy debris disks. Proceedings Of The SPIE - The International Society For Optical Engineering, 8442(8 pp.). doi:10.1117/12.926324en_US


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