Monte Carlo Simulations of Transit Light Curves for the Transiting Exoplanet Survey Satellite (TESS)

Details Monte Carlo Simulations of Transit Light Curves for the Transiting Exoplanet Survey Satellite (TESS) Monte Carlo Simulations of Transit Light Curves for the Transiting Exoplanet Survey Satellite (TESS)

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545003j&link_type=abstract

American Astronomical Society, AAS Meeting #215, #450.03; Bulletin of the American Astronomical Society, Vol. 42, p.458

Astronomy and Astrophysics

Astronomy

Scientific paper

During the Phase A for TESS, simulations of planetary transits were performed to confirm the instrument's ability to detect transits. The simulations cover the full TESS discovery space in the planet period-transit duration plane. Examples included a 36-day period planet, two previously known systems (HAT-P-11 and CoRoT 7B), and one Earth and one SuperEarth. In addition, a broad matrix of planetary periods and transit depths were also simulated. We present simulated light curves of transiting planets that are typical of those that TESS will detect. Each light curve is computed via a Monte Carlo algorithm. The timing of the optical emission includes the parameters of orbital motion for the planet-star system. All simulations include estimates of the noise from the following effects: spacecraft pointing jitter, vignetting, optical PSF wings, background effects, CCD gain and bias instability, sky background, and intrinsic stellar variability. The stellar variability includes a scaled, full temporal power spectrum of the Sun. Typical light curves of planet-star systems are simulated for a 72 day duration with a 10 minute time resolution of each TESS sample. These simulated light curves are analyzed to determine estimates of the S/N for detection for each simulated system. Support for this work has been provided by NASA, the Kavli Foundation, Google, and the Smithsonian Institution.

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