Prof Suzanne Aigrain: Publications

Stellar_flare_hits_HD_189733_b_(artist's_impression)

This artist's impression shows the hot Jupiter HD 189733b, as it passes in front of its parent star, as the latter is flaring, driving material away from the planet. The escaping atmosphere is seen silhouetted against the starlight. The surface of the star, which is around 80% the mass of the Sun, is based on observations of the Sun from NASA's Solar Dynamics Observatory.

Credit: NASA, ESA, L. Calçada, Solar Dynamics Observatory

The SARS algorithm: detrending CoRoT light curves with Sysrem using simultaneous external parameters

(2010)

Authors:

Aviv Ofir, Roi Alonso, Aldo Stefano Bonomo, Ludmila Carone, Stefania Carpano, Benjamin Samuel, Jorg Weingrill, Suzanne Aigrain, Michel Auvergne, Annie Baglin, Pierre Barge, Pascal Borde, Francois Bouchy, Hans J Deeg, Magali Deleuil, Rudolf Dvorak, Anders Erikson, Sylvio Ferraz Mello, Malcolm Fridlund, Michel Gillon, Tristan Guillot, Artie Hatzes, Laurent Jorda, Helmut Lammer, Alain Leger, Antoine Llebaria, Claire Moutou, Marc Ollivier, Martin Paetzold, Didier Queloz, Heike Rauer, Daniel Rouan, Jean Schneider, Guenther Wuchterl

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

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.

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

Erratum: The secondary eclipse of the transiting exoplanet CoRoT-2b * (Astronomy and Astrophysics (2009) 501 (L23-L26) DOI:10.1051/0004-6361/ 200912505)

Astronomy and Astrophysics 512:8 (2010)

Authors:

R Alonso, T Guillot, T Mazeh, S Aigrain, A Alapini, P Barge, A Hatzes, F Pont

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