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Planets, candidates, and binaries from the CoRoT/Exoplanet program The CoRoT transit catalog

Deleuil, M and Aigrain, S and Moutou, C and Cabrera, J and Bouchy, F and Deeg, H and Almenara, J and Hébrard, G and Santerne, A and Alonso, R and Bonomo, A and Bordé, P and Guenther, E. and Guillot, T and Fridlund, M and Gandolfi, D and Csizmadia, S and Erikson, A and Guterman, P and Grziwa, S. and Hatzes, A. and Léger, A and Mazeh, T and Ofir, A and Olivier, H. and Pätzold, M and Parviainen, Hannu and Rauer, H and Rouan, D and Schneider, J. and Titz-Weider, R and Tingley, B and Weingrill, J (2018) Planets, candidates, and binaries from the CoRoT/Exoplanet program The CoRoT transit catalog. Astronomy and Astrophysics, 619, A97. EDP Sciences. DOI: 10.1051/0004-6361/201731068 ISSN 0004-6361

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Abstract

The CoRoT space mission observed 163 665 stars over 26 stellar fields in the faint star channel. The exoplanet teams detected a total of 4123 transit-like features in the 177 454 light curves. We present the complete re-analysis of all these detections carried out with the same softwares so that to ensure their homogeneous analysis. Although the vetting process involves some human evaluation, it also involves a simple binary flag system over basic tests: detection significance, presence of a secondary, difference between odd and even depths, colour dependence, V-shape transit, and duration of the transit. We also gathered the information from the large accompanying ground-based programme carried out on the planet candidates and checked how useful the flag system could have been at the vetting stage of the candidates. From the initial list of transit-like features, we identified and separated 824 false alarms of various kind, 2269 eclipsing binaries among which 616 are contact binaries and 1653 are detached ones, 37 planets and brown dwarfs, and 557 planet candidates. We provide the catalogue of all these transit-like features, including false alarms. For the planet candidates, the catalogue gives not only their transit parameters but also the products of their light curve modelling: reduced radius, reduced semi-major axis, and impact parameter, together with a summary of the outcome of follow-up observations when carried out and their current status. For the detached eclipsing binaries, the catalogue provides, in addition to their transit parameters, a simple visual classification. Among the planet candidates whose nature remains unresolved, we estimate that eight (within an error of three) planets are still to be identified. After correcting for geometric and sensitivity biases, we derived planet and brown dwarf occurrences and confirm disagreements with Kepler estimates, as previously reported by other authors from the analysis of the first runs: small-size planets with orbital period less than ten days are underabundant by a factor of three in the CoRoT fields whereas giant planets are overabundant by a factor of two. These preliminary results would however deserve further investigations using the recently released CoRoT light curves that are corrected of the various instrumental effects and homogeneous analysis of the stellar popolations observed by the two missions.

Item URL in elib:https://elib.dlr.de/123510/
Document Type:Article
Title:Planets, candidates, and binaries from the CoRoT/Exoplanet program The CoRoT transit catalog
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Deleuil, MLAM, MarseilleUNSPECIFIED
Aigrain, SUniversity of ExeterUNSPECIFIED
Moutou, CLAM, MarseilleUNSPECIFIED
Cabrera, Jjuan.cabrera (at) dlr.deUNSPECIFIED
Bouchy, FIAP, ParisUNSPECIFIED
Deeg, HInstituto de Astrofisica de CanariasUNSPECIFIED
Almenara, JInstituto de Astrofisica de CanariasUNSPECIFIED
Hébrard, GIAP, ParisUNSPECIFIED
Santerne, ALAM, MarseilleUNSPECIFIED
Alonso, RLAM, MarseilleUNSPECIFIED
Bonomo, ALAM, MarseilleUNSPECIFIED
Bordé, PIAS, ParisUNSPECIFIED
Guenther, E.Thüringer Landessternwarte TautenburgUNSPECIFIED
Guillot, TObservatoire de la Cote d'AzurUNSPECIFIED
Fridlund, MESTECUNSPECIFIED
Gandolfi, DThüringer LandessternwarteUNSPECIFIED
Csizmadia, Sszilard.csizmadia (at) dlr.deUNSPECIFIED
Erikson, Aanders.erikson (at) dlr.deUNSPECIFIED
Guterman, PLAM, MarseilleUNSPECIFIED
Grziwa, S.Rheinisches Institut furr Umweltforschung an der Universitaet zu Koeln, Aachener Strasse 209, 50931 Koeln, GermanyUNSPECIFIED
Hatzes, A.Thüringer Landessternwarte TautenburgUNSPECIFIED
Léger, AIAS, ParisUNSPECIFIED
Mazeh, TTel Aviv UniversityUNSPECIFIED
Ofir, AUniversity of Tel AvivUNSPECIFIED
Olivier, H.RWTH AachenUNSPECIFIED
Pätzold, MUniversität KölnUNSPECIFIED
Parviainen, HannuUniversity of HelsinkiUNSPECIFIED
Rauer, Hheike.rauer (at) dlr.deUNSPECIFIED
Rouan, DLESIA, ParisUNSPECIFIED
Schneider, J.Observatoire de Paris, Meudon, FranceUNSPECIFIED
Titz-Weider, Rruth.titz (at) dlr.deUNSPECIFIED
Tingley, BInstituto de Astrofisica de CanariasUNSPECIFIED
Weingrill, JSRI, GrazUNSPECIFIED
Date:2018
Journal or Publication Title:Astronomy and Astrophysics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:619
DOI :10.1051/0004-6361/201731068
Page Range:A97
Publisher:EDP Sciences
ISSN:0004-6361
Status:Published
Keywords:stars: planetary systems - stars binaries: eclipsing - techniques: photometric - space vehicles: instrument - methods: data analysis ​
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt COROT Beteiligung
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Deposited By: Schubert, Renate
Deposited On:22 Nov 2018 12:59
Last Modified:22 Nov 2018 12:59

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