作者: John Southworth
DOI: 10.1111/J.1365-2966.2011.19399.X
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摘要: I calculate the physical properties of 32 transiting extrasolar planet and brown-dwarf systems from existing photometric observations measured spectroscopic parameters. The studied include fifteen observed by CoRoT satellite, ten Kepler five Deep Impact spacecraft. Inclusion objects in previous papers leads to a sample 58 with homogeneously properties. data Quarter 2, my analyses several are first be based on short-cadence this satellite. light curves modelled using JKTEBOP code, attention paid treatment limb darkening, contaminating light, orbital eccentricity, correlated noise, numerical integration over long exposure times. derived curve parameters, characteristics host star, constraints sets theoretical stellar model predictions. An alternative approach calibration eclipsing binary star is explored found give comparable results whilst imposing much smaller computational burden. My good agreement published for most systems, but discrepancies identified CoRoT-5, CoRoT-8, CoRoT-13, Kepler-5 Kepler-7. Many errorbars quoted literature underestimated. Refined ephemerides given CoRoT-8 planets. Asteroseismic density stars equivalents HD17156 TrES-2, not HAT-P-7 HAT-P-11. Complete error budgets generated each system, allowing identification best-suited improve measurements their Whilst would benefit further photometry spectroscopy, HD17156, HD80606, TrES-2 now extremely well characterised. HAT-P-11 an exceptional candidate studying starspots. some becoming uncertain they should re-observed near future. primary current work series have been placed online catalogue, where can obtained range formats reference study. TEPCat available at http://www.astro.keele.ac.uk/ jkt/tepcat/