Simulating the Exoplanet Population Seen by LSST

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We report on simulations of the exoplanet population detectable by LSST. The temporal coverage, large solid angle and photometric sensitivity of LSST make it a unique instrument for detecting exoplanet transits. We computed numerical detection probabilities for a grid of stellar/planetary radii, at varying inclinations, distances, and position on the sky, using the LSST Operations Simulations. We then conducted a large Monte Carlo simulation of the exoplanet population that LSST might detect. In general, large, super-Jupiter planets transiting M dwarfs present the most likely observed events. We also demonstrate LSST's sensitivity to super-Earth's and Neptune-sized planets, and compare our period-finding algorithm to standard methods. LSST has the potential to discover thousands of new exoplanets, including those around thick disk and halo members, which lie unexplored by current surveys.

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