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  1. The Astronomy and Astrophysics Review
  2. The Astronomy and Astrophysics Review : Volume 19
  3. The Astronomy and Astrophysics Review : Volume 19, Issue 1, December 2011
  4. Cluster lenses
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The Astronomy and Astrophysics Review : Volume 24
The Astronomy and Astrophysics Review : Volume 23
The Astronomy and Astrophysics Review : Volume 22
The Astronomy and Astrophysics Review : Volume 21
The Astronomy and Astrophysics Review : Volume 20
The Astronomy and Astrophysics Review : Volume 19
The Astronomy and Astrophysics Review : Volume 19, Issue 1, December 2011
The Astronomy and Astrophysics Review introduces article citation-id
EAS Tycho Brahe prize lecture 2011 : Hipparcos: a retrospective
The origin of the Martian moons revisited
Space missions to small bodies: asteroids and cometary nuclei
Fundamentals of collisionless shocks for astrophysical application, 2. Relativistic shocks
Production of dust by massive stars at high redshift
Morphology, dynamics and plasma parameters of plumes and inter-plume regions in solar coronal holes
Shedding light on the galaxy luminosity function
Cluster lenses
The Astronomy and Astrophysics Review : Volume 18
The Astronomy and Astrophysics Review : Volume 17
The Astronomy and Astrophysics Review : Volume 16
The Astronomy and Astrophysics Review : Volume 15
The Astronomy and Astrophysics Review : Volume 14
The Astronomy and Astrophysics Review : Volume 13
The Astronomy and Astrophysics Review : Volume 12
The Astronomy and Astrophysics Review : Volume 11
The Astronomy and Astrophysics Review : Volume 10
The Astronomy and Astrophysics Review : Volume 9
The Astronomy and Astrophysics Review : Volume 8

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Cluster lenses

Content Provider Springer Nature Link
Author Kneib, Jean Paul Natarajan, Priyamvada
Copyright Year 2011
Abstract Clusters of galaxies are the most recently assembled, massive, bound structures in the Universe. As predicted by General Relativity, given their masses, clusters strongly deform space-time in their vicinity. Clusters act as some of the most powerful gravitational lenses in the Universe. Light rays traversing through clusters from distant sources are hence deflected, and the resulting images of these distant objects therefore appear distorted and magnified. Lensing by clusters occurs in two regimes, each with unique observational signatures. The strong lensing regime is characterized by effects readily seen by eye, namely, the production of giant arcs, multiple images, and arclets. The weak lensing regime is characterized by small deformations in the shapes of background galaxies only detectable statistically. Cluster lenses have been exploited successfully to address several important current questions in cosmology: (i) the study of the lens(es)—understanding cluster mass distributions and issues pertaining to cluster formation and evolution, as well as constraining the nature of dark matter; (ii) the study of the lensed objects—probing the properties of the background lensed galaxy population—which is statistically at higher redshifts and of lower intrinsic luminosity thus enabling the probing of galaxy formation at the earliest times right up to the Dark Ages; and (iii) the study of the geometry of the Universe—as the strength of lensing depends on the ratios of angular diameter distances between the lens, source and observer, lens deflections are sensitive to the value of cosmological parameters and offer a powerful geometric tool to probe Dark Energy. In this review, we present the basics of cluster lensing and provide a current status report of the field.
Starting Page 1
Ending Page 100
Page Count 100
File Format PDF
ISSN 09354956
Journal The Astronomy and Astrophysics Review
Volume Number 19
Issue Number 1
e-ISSN 14320754
Language English
Publisher Springer-Verlag
Publisher Date 2011-11-12
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Cosmology: observations Galaxies: evolution Galaxies: formation Gravitational lensing Astrophysics and Astroparticles Extraterrestrial Physics, Space Sciences Astronomy, Astrophysics and Cosmology Astronomy, Observations and Techniques Planetology
Content Type Text
Resource Type Article
Subject Astronomy and Astrophysics Space and Planetary Science
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