Exoplanets and Stellar Physics

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On the dynamics of multiple systems of hot super-Earths and Neptunes: Tidal circularization, resonance and the HD 40307 system

(2010)

Authors:

John CB Papaloizou, Caroline Terquem
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Ground-based detection of thermal emission from the exoplanet WASP-19b

(2010)

Authors:

NP Gibson, S Aigrain, DL Pollacco, SCC Barros, L Hebb, M Hrudková, EK Simpson, I Skillen, R West
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The spin-orbit angle of the transiting hot Jupiter CoRoT-1b

Monthly Notices of the Royal Astronomical Society: Letters 402:1 (2010)

Authors:

F Pont, M Endl, WD Cochran, SI Barnes, C Sneden, PJ MacQueen, C Moutou, S Aigrain, R Alonso, A Baglin, F Bouchy, M Deleuil, M Fridlund, G Hébrard, A Hatzes, T Mazeh, A Shporer

Abstract:

We measure the angle between the planetary orbit and the stellar rotation axis in the transiting planetary system CoRoT-1, with new HIRES/Keck and FORS/VLT high-accuracy photometry. The data indicate a highly tilted system, with a projected spin-orbit angle λ = 77° ± 11°. Systematic uncertainties in the radial velocity data could cause the actual errors to be larger by an unknown amount, and this result needs to be confirmed with further high-accuracy spectroscopic transit measurements. Spin-orbit alignment has now been measured in a dozen extra-solar planetary systems, and several show strong misalignment. The first three misaligned planets were all much more massive than Jupiter and followed eccentric orbits. CoRoT-1, however, is a jovian-mass close-in planet on a circular orbit. If its strong misalignment is confirmed, it would break this pattern. The high occurrence of misaligned systems for several types of planets and orbits favours planet-planet scattering as a mechanism to bring gas giants on very close orbits. © 2009 The Authors. Journal compilation © 2009 RAS.
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Transiting exoplanets from the CoRoT space mission IX. CoRoT-6b: a transiting `hot Jupiter' planet in an 8.9d orbit around a low-metallicity star

(2010)

Authors:

M Fridlund, G Hebrard, R Alonso, M Deleuil, D Gandolfi, M Gillon, H Bruntt, A Alapini, Sz Csizmadia, T Guillot, H Lammer, S Aigrain, JM Almenara, M Auvergne, A Baglin, P Barge, P Borde, F Bouchy, J Cabrera, L Carone, S Carpano, HJ Deeg, R De la Reza, R Dvorak, A Erikson, S Ferraz-Mello, E Guenther, P Gondoin, R den Hartog, A Hatzes, L Jorda, A Leger, A Llebaria, P Magain, T Mazeh, C Moutou, M Ollivier, M Patzold, D Queloz, H Rauer, D Rouan, B Samuel, J Schneider, A Shporer, B Stecklum, B Tingley, J Weingrill, G Wuchterl
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Eccentricity pumping of a planet on an inclined orbit by a disc

(2010)

Authors:

Caroline Terquem, Aikel Ajmia
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