ORBi: Gillon Michaël - On the Influence of Blends on the Potential of Ground-based Transit Surveys

Reference : On the Influence of Blends on the Potential of Ground-based Transit Surveys


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/18699

Title :	On the Influence of Blends on the Potential of Ground-based Transit Surveys
Language :	English
Author, co-author :	Gillon, Michaël [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
	Magain, Pierre [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Publication date :	1-Jul-2007
Main document title :	Transiting Extrapolar Planets Workshop
Editor :	Afonso, C.
	Weldrake, D.
	Henning, T.
Publisher :	San Francisco: Astronomical Society of the Pacific
Collection and collection volume :	ASP Conference Series, Vol. 366
Pages :	283
On invitation :	No
Audience :	International
City :	San Francisco
Country :	USA
Event name :	Transiting Extrapolar Planets Workshop
Event date :	du 25 septembre 2006 au 28 septembre 2006
Event organizer :	Max Planck Institute for Astronomy
Event place (city) :	Heidelberg
Event country :	Germany
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.
Permalink :	http://hdl.handle.net/2268/18699
Other URL :	http://arxiv.org/abs/astro-ph/0701609
	http://adsabs.harvard.edu/abs/2007ASPC..366..283G

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