Ground-based photometry of space-based transit detections: photometric follow-up of the CoRoT mission

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Ground-based photometry of space-based transit detections: photometric follow-up of the CoRoT mission

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dc.contributor.author Deeg, H. J. en_GB
dc.contributor.author Gillon, M. en_GB
dc.contributor.author Shporer, A. en_GB
dc.contributor.author Rouan, D. en_GB
dc.contributor.author Stecklum, B. en_GB
dc.contributor.author Aigrain, Suzanne en_GB
dc.contributor.author Alapini, Aude en_GB
dc.contributor.author Almenara, J.-M. en_GB
dc.contributor.author Alonso, R. en_GB
dc.contributor.author Barbieri, M. en_GB
dc.contributor.author Bouchy, F. en_GB
dc.contributor.author Eislöffel, J. en_GB
dc.contributor.author Erikson, A. en_GB
dc.contributor.author Fridlund, M. en_GB
dc.contributor.author Eigmüller, P. en_GB
dc.contributor.author Handler, G. en_GB
dc.contributor.author Hatzes, A. en_GB
dc.contributor.author Kabath, P. en_GB
dc.contributor.author Lendl, M. en_GB
dc.contributor.author Mazeh, T. en_GB
dc.contributor.author Moutou, C. en_GB
dc.contributor.author Queloz, D. en_GB
dc.contributor.author Rauer, H. en_GB
dc.contributor.author Rabus, M. en_GB
dc.contributor.author Tingley, B. en_GB
dc.contributor.author Titz, R. en_GB
dc.date.accessioned 2009-11-27T12:27:48Z en_GB
dc.date.accessioned 2011-01-25T11:55:14Z en_US
dc.date.accessioned 2013-03-20T13:15:45Z
dc.date.issued 2009 en_GB
dc.description.abstract The motivation, techniques and performance of the ground-based photometric follow-up of transit detections by the CoRoT space mission are presented. Its principal raison d'être arises from the much higher spatial resolution of common ground-based telescopes in comparison to CoRoT's cameras. This allows the identification of many transit candidates as arising from eclipsing binaries that are contaminating CoRoT's lightcurves, even in low-amplitude transit events that cannot be detected with ground-based obervations. For the ground observations, “on” – “off” photometry is now largely employed, in which only a short timeseries during a transit and a section outside a transit is observed and compared photometrically. CoRoTplanet candidates' transits are being observed by a dedicated team with access to telescopes with sizes ranging from 0.2 to 2 m. As an example, the process that led to the rejection of contaminating eclipsing binaries near the host star of the Super-Earth planet CoRoT-7b is shown. Experiences and techniques from this work may also be useful for other transit-detection experiments, when the discovery instrument obtains data with a relatively low angular resolution. en_GB
dc.identifier.citation 506 (1), pp. 343-352 en_GB
dc.identifier.doi 10.1051/0004-6361/200912011 en_GB
dc.identifier.uri http://hdl.handle.net/10036/87035 en_GB
dc.language.iso en en_GB
dc.publisher EDP Sciences en_GB
dc.relation.url http://dx.doi.org/10.1051/0004-6361/200912011 en_GB
dc.subject observational methods en_GB
dc.subject photometric techniques en_GB
dc.subject planetary systems en_GB
dc.title Ground-based photometry of space-based transit detections: photometric follow-up of the CoRoT mission en_GB
dc.type Article en_GB
dc.date.available 2009-11-27T12:27:48Z en_GB
dc.date.available 2011-01-25T11:55:14Z en_US
dc.date.available 2013-03-20T13:15:45Z
dc.identifier.issn 0004-6361 en_GB
dc.identifier.issn 1432-0746 en_GB
dc.description Copyright © The European Southern Observatory (ESO) en_GB
dc.identifier.journal Astronomy and Astrophysics en_GB


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