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Comparing the performance of stellar variability filters for the detection of planetary transits

Published online by Cambridge University Press:  01 May 2008

A. S. Bonomo
Affiliation:
Dipartimento di Fisica e Astronomia, Università degli Studi di Catania, Via S. Sofia, 78, 95123, Catania, Italy email: aldo.bonomo@oact.inaf.it INAF - Osservatorio Astrofisico di Catania, Via S. Sofia, 78, 95123, Catania, Italy email: nuccio.lanza@oact.inaf.it
A. F. Lanza
Affiliation:
INAF - Osservatorio Astrofisico di Catania, Via S. Sofia, 78, 95123, Catania, Italy email: nuccio.lanza@oact.inaf.it
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Abstract

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We have developed a new method to improve the transit detection of Earth-sized planets in front of solar-like stars by fitting stellar microvariability by means of a spot model. A large Monte Carlo numerical experiment has been designed to test the performance of our approach in comparison with other variability filters and fitting techniques for stars of different magnitudes and planets of different radius and orbital period, as observed by the space missions CoRoT and Kepler. Here we report on the results of this experiment.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2009

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