Exoplanets and Stellar Physics: publications

Photospheric activity, rotation, and radial velocity variations of the planet-hosting star CoRoT-7

(2010)

Authors:

AF Lanza, AS Bonomo, C Moutou, I Pagano, S Messina, G Leto, G Cutispoto, S Aigrain, R Alonso, P Barge, M Deleuil, M Auvergne, A Baglin, A Collier Cameron

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

Monthly Notices of the Royal Astronomical Society Letters 404:1 (2010) L99-L103

Authors:

A Ofir, R Alonso, AS Bonomo, L Carone, S Carpano, B Samuel, J Weingrill, S Aigrain, M Auvergne, A Baglin, P Barge, P Borde, F Bouchy, HJ Deeg, M Deleuil, R Dvorak, A Erikson, SF Mello, M Fridlund, M Gillon, T Guillot, A Hatzes, L Jorda, H Lammer, A Leger, A Llebaria, C Moutou, M Ollivier, M Päetzold, D Queloz, H Rauer, D Rouan, J Schneider, G Wuchterl

Abstract:

Surveys for exoplanetary transits are usually limited not by photon noise but rather by the amount of red noise in their data. In particular, although the CoRoT space-based survey data are being carefully scrutinized, significant new sources of systematic noises are still being discovered. Recently, a magnitude-dependant systematic effect was discovered in the CoRoT data by Mazeh et al. and a phenomenological correction was proposed. Here we tie the observed effect to a particular type of effect, and in the process generalize the popular Sysrem algorithm to include external parameters in a simultaneous solution with the unknown effects. We show that a post-processing scheme based on this algorithm performs well and indeed allows for the detection of new transit-like signals that were not previously detected. © 2010 The Authors. Journal compilation © 2010 RAS.

Ground-based detection of thermal emission from the exoplanet WASP-19b

\mnras 404 (2010) L114-L118-L114-L118

Authors:

NP Gibson, S Aigrain, DL Pollacco, SCC Barros, L Hebb, M Hrudková, EK Simpson, I Skillen, R West

The thermal emission of the exoplanets WASP-1b and WASP-2b

(2010)

Authors:

Peter J Wheatley, Andrew Collier Cameron, Joseph Harrington, Jonathan J Fortney, James M Simpson, David R Anderson, Alexis MS Smith, Suzanne Aigrain, William I Clarkson, Michael Gillon, Carole A Haswell, Leslie Hebb, Guillaume Hébrard, Coel Hellier, Simon T Hodgkin, Keith D Horne, Stephen R Kane, Pierre FL Maxted, Andrew J Norton, Don L Pollacco, Frederic Pont, Ian Skillen, Barry Smalley, Rachel A Street, Stephane Udry, Richard G West, David M Wilson

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

Astronomy and Astrophysics 512:3 (2010)

Authors:

M Fridlund, G Hébrard, R Alonso, M Deleuil, D Gandolfi, M Gillon, H Bruntt, A Alapini, S Csizmadia, T Guillot, H Lammer, S Aigrain, JM Almenara, M Auvergne, A Baglin, P Barge, P Bordé, 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 Léger, A Llebaria, P Magain, T Mazeh, C Moutou, M Ollivier, M Pätzold, D Queloz, H Rauer, D Rouan, B Samuel, J Schneider, A Shporer, B Stecklum, B Tingley, J Weingrill, G Wuchterl

Abstract:

The CoRoT satellite exoplanetary team announces its sixth transiting planet in this paper. We describe and discuss the satellite observations as well as the complementary ground-based observations-photometric and spectroscopic- carried out to assess the planetary nature of the object and determine its specific physical parameters. The discovery reported here is a "hot Jupiter" planet in an 8.9d orbit, 18 stellar radii, or 0.08 AU, away from its primary star, which is a solar-type star (F9V) with an estimated age of 3.0 Gyr. The planet mass is close to 3 times that of Jupiter. The star has a metallicity of 0.2 dex lower than the Sun, and a relatively high ⁷Li abundance. While the light curve indicates a much higher level of activity than, e.g., the Sun, there is no sign of activity spectroscopically in e.g., the [Ca ii] H&K lines. © ESO, 2010.

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