Compared sensitivities of VLT, JWST and ELT for direct exoplanet detection in nearby stellar moving groups

[en] In the context of exoplanet detection, a large majority of the 400 detected exoplanets have been found by indirect methods. Today, progress in the field of high contrast and angular resolution imaging has allowed direct images of several exoplanetary systems to be taken (cf. HR 8799, Fomalhaut and β Pic).[SUP]1-4[/SUP] In the near future, several new instruments are going to dramatically improve our sensitivity to exoplanet detection. Among these, SPHERE (Spectro Polarimetric High contrast Exoplanet REsearch) at the VLT, MIRI (Mid Infra-Red Instrument) onboard JWST and EPICS at the ELT will be equipped with coronagraphs to reveal faint objects in the vicinity of nearby stars. We made use of the Lyon group (COND) evolutionary models of young (sub-)stellar objects and exoplanets to compare the sensitivities of these different instruments using their estimated coronagraphic profiles. From this comparison, we present a catalogue of targets which are particularly well suited for the different instruments.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Hanot, Charles ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)

Absil, Olivier ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)

Surdej, Jean ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)

Boccaletti, Anthony; LESIA, Observatoire de Paris à Meudon (France)

Vérinaud, Christophe; Lab. d'Astrophysique de l'Observatoire de Grenoble (France)

Language :

English

Title :

Compared sensitivities of VLT, JWST and ELT for direct exoplanet detection in nearby stellar moving groups

Publication date :

July 2010

Event name :

Astronomical Telescopes and Instrumentation 2010: Space Telescopes and Instrumentation 2010 (Optical, Infrared, and Millimeter Wave)

Event organizer :

SPIE

Event place :

San Diego, United States - California

Event date :

27/06/2010 - 2/07/2010

Audience :

International

Main work title :

Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave

Editor :

Oschmann, J.

Clampin, M.

MacEwen, H.

Publisher :

SPIE, Bellingham, United States - Washington

Collection name :

Proceedings of the SPIE, volume 7731

Pages :

3M.1-3M.10

Additional URL :

http://adsabs.harvard.edu/abs/2010SPIE.7731E.116H

Available on ORBi :

since 10 January 2011

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