Detection of bright multiply imaged quasars with Gaia

[en] We estimate the fraction of gravitational lens systems among quasars that Gaia will detect. Modeling the population of intervening deflectors by means of a Singular Isothermal Sphere lens model, we find that a fraction of 0.6% of quasars will consist of multiple lensed QSO images. This leads to an expectation of nearly 3000 multiply imaged Quasars to be discovered by Gaia over the whole sky.

Disciplines :

Space science, astronomy & astrophysics

Author, co-author :

Finet, F.; Institut d'Astrophysique, Géophysique et Océanographie (AGO) - Université de Liège, Allée du 6 août, 17 - Bât. B5c B-4000 Liège 1 (Sart-Tilman), Belgique )

Elyiv, A.

Surdej, Jean ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)

Language :

English

Title :

Detection of bright multiply imaged quasars with Gaia

Publication date :

2012

Journal title :

Memorie della Societa Astronomica Italiana

ISSN :

0037-8720

Publisher :

Societa Astronomica Italiana, Milano, Italy

Volume :

Pages :

944

Additional URL :

http://esoads.eso.org/abs/2012MmSAI..83..944F

Available on ORBi :

since 15 January 2018

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