Transiting exoplanets from the CoRoT space mission

Aigrain, S.; Cameron, A. Collier; Ollivier, M.; Pont, F.; Jordá, L.; Almenara, J. M.; Alonso, R.; Barge, P.; Bordé, P.; Bouchy, F.; Deeg, H. J.; Reza, R. de la; Deleuil, M.; Dvořák, R.; Erikson, A.; Fridlund, M.; Gondoin, P.; Gillon, M.; Guillot, T.; Hatzes, A. P.; Lämmer, H.; Lanza, A. F.; Léger, Alain; Llebaria, A.; Magain, Pierre; Mazeh, T.; Moutou, C.; Paëtzold, M.; Pinte, C.; Queloz, D.; Rauer, H.; Rouan, D.; Schneider, Jodi; Wuchter, G.; Zucker, S.

doi:10.1051/0004-6361:200810246

Cited by 79 publications

(76 citation statements)

References 18 publications

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“…Two planets from the final list of 40 candidates, CoRoT-1b and CoRoT-4b, have so far been confirmed as planets. More details about the discovery of these two planets can be found in Barge et al (2008a) and Aigrain et al (2008), respectively. Figure 5 shows the sky coverage of the 2 CCDs dedicated to exoplanetary science and the positions of the candidates within this field of view.…”

Section: Corot Observations Of Ira01 Fieldmentioning

confidence: 99%

Planetary transit candidates in Corot-IRa01 field

Carpano¹,

Cabrera

Alonso

et al. 2009

A&A

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Context. CoRoT is a pioneering space mission devoted to the analysis of stellar variability and the photometric detection of extrasolar planets. Aims. We present the list of planetary transit candidates detected in the first field observed by CoRoT, IRa01, the initial run toward the Galactic anticenter, which lasted for 60 days. Methods. We analysed 3898 sources in the coloured bands and 5974 in the monochromatic band. Instrumental noise and stellar variability were taken into account using detrending tools before applying various transit search algorithms. Results. Fifty sources were classified as planetary transit candidates and the most reliable 40 detections were declared targets for follow-up ground-based observations. Two of these targets have so far been confirmed as planets, CoRoT-1b and CoRoT-4b, for which a complete characterization and specific studies were performed.

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Section: Corot Observations Of Ira01 Fieldmentioning

confidence: 99%

Planetary transit candidates in Corot-IRa01 field

Carpano¹,

Cabrera

Alonso

et al. 2009

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“…and CoRoT-5b all have 0.2 < ρ pl < 0.5 g cm −3 . These planets also have a mass of 0.47 < M pl < 1.03M Jup Aigrain et al 2008;Rauer et al 2009). The third group consisting of CoRoT-2b and CoRoT-6b have ρ pl of 1.3 and 2.32 g cm −3 , respectively ).…”

Section: Planetary Parametersmentioning

confidence: 99%

“…To date, only 2 of the 69 known transiting planets have periods longer then CoRoT-6b and only 6 planets have periods ≥5 days, 2 of which were discovered by CoRoT. Other known transiting objects with long periods are WASP-8b with P = 8.16 days, M = 2.23 M Jup (Smith et al 2009), CoRoT-4b with P = 9.20 days, M = 0.72 M Jup (Aigrain et al 2008), and HD 17156b with P = 21.22 days, M = 3.21 M Jup , (Barbieri et al 2007;Fischer et al 2007). There is also the case of HD 80606b with P = 111.43 days, M = 3.94 M Jup (Naef et al 2001).…”

Section: Planetary Parametersmentioning

confidence: 99%

“…This instrument was designed to discover and study in detail exoplanets for which the transits are difficult or impossible to detect from the ground. This concerns specifically small planets or "Super-Earths" (Léger et al 2009;Queloz et al 2009), i.e., planets orbiting more active stars, e.g., CoRoT2b, ) and with longer periods, e.g., CoRoT-4b, (Aigrain et al 2008;Moutou et al 2008). It is relatively easy for CoRoT to detect larger planets, similar in size to Jupiter, and a number of these have also been reported The CoRoT space mission, launched on December 27, 2006, has been developed and is being operated by CNES, with the contribution of Austria, Belgium, Brazil, ESA, The Research and Scientific Support Department of ESA, Germany and Spain.…”

Section: Introductionmentioning

confidence: 99%

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Transiting exoplanets from the CoRoT space mission

Fridlund¹,

Hébrard

Alonso

et al. 2010

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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 7 Li 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.

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“…In addition, CoRoT is targeting planet transits from space (4 planets; e.g. Aigrain et al 2008), with the ultimate aim of finding Earth or super-Earth size planets.…”

Section: Introductionmentioning

confidence: 99%

OGLE2-TR-L9b: an exoplanet transiting a rapidly rotating F3 star

Snellen¹,

Koppenhoefer

Burg³

et al. 2009

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Context. The photometric observations of the OGLE-II microlens monitoring campaign have been taken in the period 1997−2000. All light curves of this campaign have recently become public. Our analysis of these data has revealed 13 low-amplitude transiting objects among ∼15 700 stars in three Carina fields towards the Galactic disk. One of these objects, OGLE2-TR-L9 (P ∼ 2.5 days), turned out to be an excellent transiting-planet candidate. Aims. We report on our investigation of the true nature of OGLE2-TR-L9. By re-observing the photometric transit, we attempt to determine the transit parameters to high precision, and, by spectroscopic observations, to estimate the properties of the host star and determine the mass of the transiting object by means of radial-velocity measurements. Methods. High precision photometric observations were obtained in g , r , i , and z band simultaneously, using the new GROND detector, mounted on the MPI/ESO 2.2 m telescope at La Silla. Eight epochs of high-dispersion spectroscopic observations were obtained using the fiber-fed FLAMES/UVES Echelle spectrograph, mounted on ESO's Very Large Telescope at Paranal. Results. The photometric transit, now more than 7 years after the last OGLE-II observations, was re-discovered only ∼8 min from its predicted time. The primary object is a rapidly rotating F3 star with v sin i = 39.33±0.38 km s −1 , T = 6933±58 K, log g = 4.25±0.01, and [Fe/H] = −0.05 ± 0.20. The transiting object is an extrasolar planet with M p = 4.5 ± 1.5 M Jup and R p = 1.61 ± 0.04 R Jup . Since this is the first planet detected orbiting a fast rotating star, the uncertainties in both the radial-velocity measurements and the planetary mass are larger than for most other planets discovered to date. The rejection of possible blend scenarios was based on a quantitative analysis of the multi-color photometric data. A stellar-blend scenario of an early F-star with a faint eclipsing-binary system is excluded, due to 1) the consistency between the spectroscopic parameters of the star and the mean density of the transited object as determined from the photometry, and 2) the excellent agreement between the transit signal as observed at four different wavelengths.

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Transiting exoplanets from the CoRoT space mission

Cited by 79 publications

References 18 publications

Planetary transit candidates in Corot-IRa01 field

Planetary transit candidates in Corot-IRa01 field

Transiting exoplanets from the CoRoT space mission

OGLE2-TR-L9b: an exoplanet transiting a rapidly rotating F3 star

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