The Galactic Exoplanet Survey Telescope (GEST)

Details The Galactic Exoplanet Survey Telescope (GEST) The Galactic Exoplanet Survey Telescope (GEST)

2002-09-20

arxiv.org/abs/astro-ph/0209435v1

Astronomy and Astrophysics

Astrophysics

17 pages with 13 figures, to be published in Proc. SPIE vol 4854, "Future EUV-UV and Visible Space Astrophysics Missions and I

Scientific paper

10.1117/12.459816

The Galactic Exoplanet Survey Telescope (GEST) will observe a 2 square degree field in the Galactic bulge to search for extra-solar planets using a gravitational lensing technique. This gravitational lensing technique is the only method employing currently available technology that can detect Earth-mass planets at high signal-to-noise, and can measure the frequency of terrestrial planets as a function of Galactic position. GEST's sensitivity extends down to the mass of Mars, and it can detect hundreds of terrestrial planets with semi-major axes ranging from 0.7 AU to infinity. GEST will be the first truly comprehensive survey of the Galaxy for planets like those in our own Solar System.

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