ExTrA: Exoplanets in transit and their atmospheres

X. Bonfils; J. M. Almenara; L. Jocou; A. Wunsche; P. Kern; A. Delboulbé; X. Delfosse; P. Feautrier; T. Forveille; L. Gluck; S. Lafrasse; Y. Magnard; D. Maurel; T. Moulin; F. Murgas; P. Rabou; S. Rochat; A. Roux; E. Stadler

doi:10.1117/12.2186999

11 September 2015 ExTrA: Exoplanets in transit and their atmospheres

X. Bonfils, J. M. Almenara, L. Jocou, A. Wunsche, P. Kern, A. Delboulbé, X. Delfosse, P. Feautrier, T. Forveille, L. Gluck, S. Lafrasse, Y. Magnard, D. Maurel, T. Moulin, F. Murgas, P. Rabou, S. Rochat, A. Roux, E. Stadler

Author Affiliations +

Proceedings Volume 9605, Techniques and Instrumentation for Detection of Exoplanets VII; 96051L (2015) https://doi.org/10.1117/12.2186999
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

The ExTrA facility, located at La Silla observatory, will consist of a near-infrared multi-object spectrograph fed by three 60-cm telescopes. ExTrA will add the spectroscopic resolution to the traditional differential photometry method. This shall enable the fine correction of color-dependent systematics that would otherwise hinder ground-based observations. With both this novel method and an infrared-enabled efficiency, ExTrA aims to find transiting telluric planets orbiting in the habitable zone of bright nearby M dwarfs. It shall have the versatility to do so by running its own independent survey and also by concurrently following-up on the space candidates unveiled by K2 and TESS. The exoplanets detected by ExTrA will be amenable to atmospheric characterisation with VLTs, JWST, and ELTs and could give our first peek into an exo-life laboratory.

Citation Download Citation

X. Bonfils, J. M. Almenara, L. Jocou, A. Wunsche, P. Kern, A. Delboulbé, X. Delfosse, P. Feautrier, T. Forveille, L. Gluck, S. Lafrasse, Y. Magnard, D. Maurel, T. Moulin, F. Murgas, P. Rabou, S. Rochat, A. Roux, and E. Stadler "ExTrA: Exoplanets in transit and their atmospheres", Proc. SPIE 9605, Techniques and Instrumentation for Detection of Exoplanets VII, 96051L (11 September 2015); https://doi.org/10.1117/12.2186999

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