Reference : The TRAPPIST-1 JWST Community Initiative
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
The TRAPPIST-1 JWST Community Initiative
Gillon, Michaël mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic >]
Meadows, Victoria [University of Washington]
Agol, Eric [University of Washington]
Burgasser, Adam J. [University of California San Diego]
Deming, Drake [University of Maryland College Park]
Doyon, René [University of Montreal, Canada]
Fortney, Jonathan [University of California Santa Cruz]
Kreidberg, Laura [Center for Astrophysics | Harvard and Smithsonian]
Owen, James [Imperial College London, United Kingdom]
Selsis, Franck [University of Bordeaux, France]
de Wit, Julien [Massachusetts Institute of Technology]
Lustig-Yaeger, Jacob [Johns Hopkins University Applied Physics Laboratory]
Rackham, Benjamin V. [Massachusetts Institute of Technology)]
Bulletin of the American Astronomical Society
American Astronomical Society
New York
[en] The upcoming launch of the James Webb Space Telescope (JWST) combined with the unique features of the TRAPPIST-1 planetary system should enable the young field of exoplanetology to enter into the realm of temperate Earth-sized worlds. Indeed, the proximity of the system (12pc) and the small size (0.12 R) and luminosity (0.05% L) of its host star should make the comparative atmospheric characterization of its seven transiting planets within reach of an ambitious JWST program. Given the limited lifetime of JWST, the ecliptic location of the star that limits its visibility to 100d per year, the large number of observational time required by this study, and the numerous observational and theoretical challenges awaiting it, its full success will critically depend on a large level of coordination between the involved teams and on the support of a large community. In this context, we present here a community initiative aiming to develop a well-defined sequential structure for the study of the system with JWST and to coordinate on every aspect of its preparation and implementation, both on the observational (e.g. study of the instrumental limitations, data analysis techniques, complementary space-based and ground-based observations) and theoretical levels (e.g. model developments and comparison, retrieval techniques, inferences). Depending on the outcome of the first phase of JWST observations of the planets, this initiative could become the seed of a major JWST Legacy Program devoted to the study of TRAPPIST-1.

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