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On the Influence of Blends on the Potential of Ground-based Transit Surveys
Gillon, Michaël; Magain, Pierre
2007In Afonso, C.; Weldrake, D.; Henning, T. (Eds.) Transiting Extrapolar Planets Workshop
 

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Abstract :
[en] Transit surveys have to observe many stars all at once in order to compensate for the rarity of the searched events. Such surveys, especially the ones observing a deep field of view and/or broadening their stellar images, have to deal with a relatively high level of crowding. This crowding could lead to a reduction of the number of detectable transits, and the estimation of the potential of such surveys without taking into account the influence of blends could give overoptimistic results. We have developed a code which allows to estimate the extent by which such a survey is affected by the crowding of the field of view. Our results show that the influence of blends is important only for severe levels of crowding and is in general much less crucial than the influence of red noise.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Gillon, Michaël  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Magain, Pierre  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image
Language :
English
Title :
On the Influence of Blends on the Potential of Ground-based Transit Surveys
Publication date :
01 July 2007
Event name :
Transiting Extrapolar Planets Workshop
Event organizer :
Max Planck Institute for Astronomy
Event place :
Heidelberg, Germany
Event date :
du 25 septembre 2006 au 28 septembre 2006
Audience :
International
Main work title :
Transiting Extrapolar Planets Workshop
Editor :
Afonso, C.
Weldrake, D.
Henning, T.
Publisher :
San Francisco: Astronomical Society of the Pacific, San Francisco, United States
Collection name :
ASP Conference Series, Vol. 366
Pages :
283
Available on ORBi :
since 09 March 2010

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