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2010MNRAS.407..301K - Mon. Not. R. Astron. Soc., 407, 301-313 (2010/September-1)
Investigations of approximate expressions for the transit duration.
KIPPING D.M.
Abstract (from CDS):
We derive a new set of equations for retrieving the light-curve parameters and consider the effect of falsely using circular expressions for eccentric orbits, with particularly important consequences for transit surveys. The new expression also allows us to propose a new light-curve fitting parameter set, which minimizes the mutual correlations and thus improves computational efficiency. The equation is also readily differentiated to provide analytic expressions for the transit duration variation due to secular variations in the system parameters, for example due to apsidal precession induced by perturbing planets.
Abstract Copyright: © 2010 The Author. Journal compilation © 2010 RAS
Journal keyword(s): methods: analytical - techniques: photometric - celestial mechanics - eclipses - planetary systems
Errata: erratum vol. 408, p.1968 (2010)
Simbad objects: 2
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