Cecile Faure
First catalog of strong lens candidates in the COSMOS field
Faure, Cecile; Kneib, Jean-Paul; Covone, Giovanni; Tasca, Lidia; Leauthaud, Alexie; Capak, Peter; Jahnke, Knud; Smolcic, Vernesa; De La Torre, Sylvain; Ellis, Richard; Finoguenov, Alexis; Koekemoer, Anton; Le Fevre, Oliver; Massey, Richard; Mellier, Yannick; Refregier, Alexandre; Rhodes, Jason; Scoville, Nick; Schinnerer, Eva; Taylor, James; Van Waerbeke, Ludovic; Walcher, Jakob
Authors
Jean-Paul Kneib
Giovanni Covone
Lidia Tasca
Alexie Leauthaud
Peter Capak
Knud Jahnke
Vernesa Smolcic
Sylvain De La Torre
Richard Ellis
Alexis Finoguenov
Anton Koekemoer
Oliver Le Fevre
Professor Richard Massey r.j.massey@durham.ac.uk
Professor
Yannick Mellier
Alexandre Refregier
Jason Rhodes
Nick Scoville
Eva Schinnerer
James Taylor
Ludovic Van Waerbeke
Jakob Walcher
Abstract
e present the first catalog of 67 strong galaxy-galaxy lens candidates discovered in the 1.64 deg2 Hubble Space Telescope COSMOS survey. Twenty of these systems display multiple images or strongly curved large arcs. Our initial search is performed by visual inspection of the data and is restricted, for practical considerations, to massive early-type lens galaxies with arcs found at radii smaller than ∼5". Simple mass models are constructed for the best lens candidates, and our results are compared to the strong lensing catalogs of the SLACS survey and the CASTLES database. These new strong galaxy-galaxy lensing systems constitute a valuable sample to study the mass distribution of early-type galaxies and their associated dark matter halos. We further expect this sample to play an important role in the testing of software algorithms designed to automatically search for strong gravitational lenses. From our analysis a robust lower limit is derived for the expected occurrence of strong galaxy-galaxy systems in current and future space-based wide-field imaging surveys. We expect that such surveys should uncover a large number of strong lensing systems (more than 10 systems per square degree), which will allow for a detailed statistical analysis of galaxy properties and will likely lead to constraints on models of gravitational structure formation and cosmology.
Citation
Faure, C., Kneib, J., Covone, G., Tasca, L., Leauthaud, A., Capak, P., …Walcher, J. (2008). First catalog of strong lens candidates in the COSMOS field. Astrophysical Journal Supplement, 176(1), 19-38. https://doi.org/10.1086/526426
Journal Article Type | Article |
---|---|
Publication Date | May 1, 2008 |
Deposit Date | Mar 21, 2013 |
Publicly Available Date | Apr 15, 2016 |
Journal | Astrophysical Journal Supplement |
Print ISSN | 0067-0049 |
Publisher | American Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 176 |
Issue | 1 |
Pages | 19-38 |
DOI | https://doi.org/10.1086/526426 |
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Copyright Statement
© 2008. The American Astronomical Society. All rights reserved
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