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Earth-like planets: science performance predictions for future nulling interferometry missions
Defrere, Denis; Lay, O.; den Hartog, R. et al.
2008In Schöller, Markus; Danchi, William; Delplancke, Françoise (Eds.) Optical and Infrared Interferometry
 

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Abstract :
[en] With the launch of planet-transit missions such as CoRoT and Kepler, it is expected that Earth-sized planets orbiting distant stars will be detected soon. This milestone will open the path towards the definition of missions able to study the atmosphere of Earth-sized extrasolar planets, with the identification of bio-signatures as one of the main objectives. In that respect, both the European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA) have identified nulling interferometry as one of the most promising techniques. Trying to minimize the cost and the technological risks while maximizing the scientific return, ESA and NASA recently converged towards a single mission architecture, the Emma X-array. In this paper, we present the expected science performance of this concept computed with two independent mission simulators. The impact of different observational parameters such as planet radius and exozodiacal cloud density is specifically addressed.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Defrere, Denis ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
Lay, O.;  Jet Propulsion Lab. (United States)
den Hartog, R.;  ESA/ESTEC (Netherlands)
Absil, Olivier  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Language :
English
Title :
Earth-like planets: science performance predictions for future nulling interferometry missions
Publication date :
01 July 2008
Event name :
Space Telescopes and Instrumentation 2008: Optical and Infrared Interferometry
Event organizer :
SPIE
Event place :
Marseille, France
Event date :
23/06/2008 - 28/06/2008
Audience :
International
Main work title :
Optical and Infrared Interferometry
Editor :
Schöller, Markus
Danchi, William
Delplancke, Françoise
Publisher :
SPIE, Bellingham, United States - Washington
Collection name :
Proceedings of the SPIE, volume 7013
Pages :
21.1-21.12
Available on ORBi :
since 24 January 2012

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