Reference : Ground-based photometry of space-based transit detections: Photometric follow-up of t...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/28278
Ground-based photometry of space-based transit detections: Photometric follow-up of the CoRoT mission
English
Deeg, H. J. [ > > ]
Gillon, Michaël mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Shporer, A. [ > > ]
Rouan, D. [ > > ]
Stecklum, B. [ > > ]
Aigrain, S. [ > > ]
Alapini, A. [ > > ]
Almenara, J. [ > > ]
Alonso, R. G. [ > > ]
Barbieri, M. [ > > ]
Bouchy, F. [ > > ]
Eislöfell, J. [ > > ]
Erikson, A Collier [ > > ]
Fridlund, M. [ > > ]
Eigmüller, P. [ > > ]
Handler, G. [ > > ]
Hatzes, A. [ > > ]
Kabath, P. [ > > ]
Lendl, M. [ > > ]
Mazeh, T. [ > > ]
Moutou, C. [ > > ]
Queloz, D. [ > > ]
Rauer, H. [ > > ]
Rabus, M. K. [ > > ]
Tingley, B. [ > > ]
Titz, R. [ > > ]
2009
Astronomy and Astrophysics
EDP Sciences
506
The CoRoT space mission: early results
343-352
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] methods: observational ; techniques: photometric ; stars: planetary system ; stars: binaries: eclipsing
[en] 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.
http://hdl.handle.net/2268/28278
http://adsabs.harvard.edu/abs/2009A%26A...506..343D

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