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HOMOGENEOUS STUDIES OF TRANSITING PLANETS

John Southworth Advanced Fellow Keele University, UK




Mass versus radius

planets on the left

host stars on the right


Homogeneous studies of transiting planets
· Light curve fit: jktebop · Limb darkening: ­ five different laws · Contaminating light ­ constraints from highresolution imaging

Light curve of WASP-2 (Southworth et al. 2009)


Homogeneous studies of transiting planets
· Light curve fit: jktebop · Limb darkening: ­ five different laws · Contaminating light ­ constraints from highresolution imaging · Orbital eccentricity ­ constraints from RVs a n d o c c u l ta ti o n ti m i n g s · Numerical integration ­ deal with long Kepler and CoRoT exposure times
Light curve of WASP-2 (Southworth et al. 2009)


Homogeneous studies of transiting planets
· Light curve fit: jktebop · Limb darkening: ­ five different laws · Contaminating light ­ constraints from highresolution imaging · Orbital eccentricity ­ constraints from RVs a n d o c c u l ta ti o n ti m i n g s · Numerical integration ­ deal with long Kepler and CoRoT exposure times · Error analyses ­ white noise: Monte Carlo ­ red noise: residual permutation
Light curve of WASP-2 (Southworth et al. 2009)


Homogeneous studies of transiting planets
· Physical properties from extra constraint: ­ five different stellar theoretical models ­ also try eclipsing binary calibration

Comparison between stellar models and eclipsing binary star systems


Homogeneous studies of transiting planets
· Physical properties from extra constraint: ­ five different stellar theoretical models ­ also try eclipsing binary calibration · Now done 110 transiting systems ­ CoRoT, Kepler, KOI, HAT, GJ, HD, TrES, WASP, XO · Southworth (2013) is still not submitted . . .

Comparison between stellar models and eclipsing binary star systems

· Southworth (2008, 2009, 2010, 2011, 2012)


Homogeneous studies of transiting planets
· Physical properties from extra constraint: ­ five different stellar theoretical models ­ also try eclipsing binary calibration · Now done 110 transiting systems ­ CoRoT, Kepler, KOI, HAT, GJ, HD, TrES, WASP, XO · Southworth (2013) is still not submitted . . . · TEPCat: http://www.astro.keele.ac.uk/jkt/tepcat/

Comparison between stellar models and eclipsing binary star systems

· Southworth (2008, 2009, 2010, 2011, 2012)