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Observational window functions in planet transit searches

Published online by Cambridge University Press:  01 October 2007

Kaspar von Braun
Affiliation:
Michelson Science CenterCalifornia Institute of Technology770 South Wilson Ave. Pasadena, CA 91125, USA email: kaspar@ipac.caltech.edu; ciardi@ipac.caltech.edu
David R. Ciardi
Affiliation:
Michelson Science CenterCalifornia Institute of Technology770 South Wilson Ave. Pasadena, CA 91125, USA email: kaspar@ipac.caltech.edu; ciardi@ipac.caltech.edu
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Abstract

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Window functions describe, as a function of orbital period, the probability that an existing planetary transit is detectable in one's data for a given observing strategy. We show the dependence of this probability upon several strategy and astrophysical parameters, such as length of observing run, observing cadence, length of night, and transit duration. The ability to detect a transit is directly related to the intrinsic noise of the observations. In our simulations of the window function, we explicitly address non-correlated (white) noise and correlated (red) noise and discuss how these two different noise components affect window functions in different manners.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2008

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