Poster (Scientific congresses and symposiums)
Characterizing exoplanetary atmospheres with a mid-infrared nulling spectrograph
Defrere, Denis; Léger, Alain; Absil, Olivier et al.
2017Diversity of planetary circulation regimes, in our Solar system and beyond
 

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Keywords :
Exoplanets; Atmospheres; Direct imaging; Mid-infrared; Nulling; Spectrography; Astrobiology
Abstract :
[en] The discovery of an increasing number of terrestrial planets around nearby stars marks the dawn of a new era in the exoplanet field: the characterization and understanding of their atmospheres. To make significant progress, it becomes clear that a large number of exoplanetary atmospheres have to be studied at various wavelengths. This is particularly relevant for identifying possible bio-signatures. In this poster, we present a concept of a space-based mid-infrared nulling spectrograph that can characterize a large number of exoplanetary atmospheres and provide key information on their size, surface temperature, and the presence of key molecules such as CO2, H2O, CH4 and O3. The proposed mission concept would be particularly suited to characterize Proxima Cen b.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Defrere, Denis ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Léger, Alain
Absil, Olivier  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Beichman, Chas
Fridlund, Malcolm
Garcias Munoz, Antonio
Grenfell, Lee
Godolt, Marcia
Mennesson, Bertrand
Rauer, Heike
Tian, Feng
Language :
English
Title :
Characterizing exoplanetary atmospheres with a mid-infrared nulling spectrograph
Publication date :
07 March 2017
Event name :
Diversity of planetary circulation regimes, in our Solar system and beyond
Event date :
from 05-03-2017 to 10-03-2017
Audience :
International
Available on ORBi :
since 05 March 2017

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