Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:1004.4660)
· On-line Data
· References in the article
· Citations to the Article (42) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (66)
· NED Objects (19)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Full lensing analysis of Abell 1703: comparison of independent lens-modelling techniques
Authors:
Zitrin, Adi; Broadhurst, Tom; Umetsu, Keiichi; Rephaeli, Yoel; Medezinski, Elinor; Bradley, Larry; Jiménez-Teja, Yolanda; Benítez, Narciso; Ford, Holland; Liesenborgs, Jori; de Rijcke, Sven; Dejonghe, Herwig; Bekaert, Philippe
Affiliation:
AA(School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel), AB(School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel; Department of Theoretical Physics, University of Basque Country UPV/EHU, Leioa, Spain; IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain), AC(Institute of Astronomy and Astrophysics, Academia Sinica, PO Box 23-141, Taipei 10617, Taiwan), AD(School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel), AE(School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel), AF(Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA), AG(Instituto de Astrofísica de Andalucía (CSIC), C/Camino Bajo de Huétor 24, Granada 18008, Spain), AH(Instituto de Astrofísica de Andalucía (CSIC), C/Camino Bajo de Huétor 24, Granada 18008, Spain), AI(Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA), AJ(Expertisecentrum voor Digitale Media, Universiteit Hasselt, Wetenschapspark 2, B-3590 Diepenbeek, Belgium), AK(Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281, S9, B-9000 Gent, Belgium), AL(Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281, S9, B-9000 Gent, Belgium), AM(Expertisecentrum voor Digitale Media, Universiteit Hasselt, Wetenschapspark 2, B-3590 Diepenbeek, Belgium)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 408, Issue 3, pp. 1916-1927. (MNRAS Homepage)
Publication Date:
11/2010
Origin:
WILEY
Astronomy Keywords:
gravitational lensing: strong, galaxies: clusters: general, galaxies: clusters: individual: Abell 1703, galaxies: elliptical and lenticular, cD, galaxies: formation, dark matter
Abstract Copyright:
(c) Journal compilation © 2010 RAS
DOI:
10.1111/j.1365-2966.2010.17258.x
Bibliographic Code:
2010MNRAS.408.1916Z

Abstract

The inner mass profile of the relaxed cluster Abell 1703 is analysed by two very different strong-lensing techniques applied to the deep Advanced Camera for Surveys and the Wide Field Channel 3 imaging. Our parametric method has the accuracy required to reproduce many sets of multiple images, based on the assumption that mass approximately traces light. We test this assumption with a fully non-parametric, adaptive grid method, with no knowledge of the galaxy distribution. Differences between the methods are seen on fine scales due to member galaxies which must be included in models designed to search for lensed images, but on the larger scale the general distribution of dark matter is in good agreement, with very similar radial mass profiles. We add undiluted weak-lensing measurements from deep multicolour Subaru imaging to obtain a fully model-independent mass profile out to the virial radius and beyond. Consistency is found in the region of overlap between the weak and strong lensing, and the full mass profile is well described by a Navarro, Frenk & White (NFW) model of a concentration parameter, cvir ~= 7.15 +/- 0.5 (and Mvir ~= 1.22 +/- 0.15 × 1015 Msolar h-1). Abell 1703 lies above the standard c-M relation predicted for the standard Lambda cold dark matter model, similar to other massive relaxed clusters with accurately determined lensing-based profiles.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

  New!

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints