Results 41 to 50 of about 126,622 (149)
Resolving the discrepancy between X-ray and gravitational lensing mass measurements for clusters of galaxies [PDF]
, 1997 We present a detailed comparison of mass measurements for clusters of galaxies using ASCA and ROSAT X-ray data and constraints from strong and weak gravitational lensing.
Allen, S. W.
core +2 more sources
Effect of gravitational lensing on the distribution of gravitational waves from distant binary black hole mergers [PDF]
Mon.Not.Roy.Astron.Soc.480:3842-3855,2018, 2018 The detailed observation of the distribution of redshifts and chirp masses of binary black hole mergers is expected to provide a clue to their origin. In this paper, we develop a hybrid model of the probability distribution function of gravitational lensing magnification taking account of both strong and weak gravitational lensing, and use it to study ...
arxiv +1 more source
Gravitational Lensing by Elliptical Galaxies [PDF]
Symposium - International Astronomical Union, 2002 The probability that high-redshift quasars are gravitationally-lensed by intervening galaxies increases rapidly with the cosmological constant, ΩΛ0 (whilst being only weakly dependent on the density parameter, Ωm0), and the low number of lenses observed implies that ΩΛ0 ≲ 0.7 (e.g. Kochanek 1996).
Rachel L. Webster +2 more
openaire +7 more sources
Second-order weak lensing from modified gravity [PDF]
, 2011 We explore the sensitivity of weak gravitational lensing to second-order corrections to the spacetime metric within a cosmological adaptation of the parameterized post-Newtonian framework.
Caldwell, Robert R. +2 more
core +3 more sources
Symposium - International Astronomical Union, 1988 The gravitational lensing phenomenon is a new observational tool in cosmology. It appears to occur reasonably frequently; several thousand examples probably are observable with current radio and optical telescopes. A dozen or so reasonable candidates have been proposed, but it has become clear that one must apply strong tests to distinguish between ...
openaire +1 more source
Weak Gravitational Lensing of the CMB [PDF]
Phys.Rept. 429 (2006) 1-65, 2006 Weak gravitational lensing has several important effects on the cosmic microwave background (CMB): it changes the CMB power spectra, induces non-Gaussianities, and generates a B-mode polarization signal that is an important source of confusion for the signal from primordial gravitational waves.
arxiv +1 more source
, 1999 The purpose of these lecture notes is to describe the gravitational lens effects in different astrophysical contexts. These notes are voluntarily focused on the fundamental mechanisms and the basic concepts that are useful to describe these effects. The observational consequences are presented in more details in accompanying notes by Y. Mellier.
openaire +2 more sources
Weak gravitational lensing with deimos [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 7 pages, 3 figures, fixed typo in Eq ...
Melchior, P. +3 more
openaire +5 more sources
A Systematic Review of Strong Gravitational Lens Modeling Software
, 2013 Despite expanding research activity in gravitational lens modeling, there is no particular software which is considered a standard. Much of the gravitational lens modeling software is written by individual investigators for their own use.
Aazami +39 more
core +1 more source
Gravitational lensing in Weyl gravity [PDF]
Physical Review D, 2019 14 pages; v2: published ...
Oğuzhan Kaşıkçı, Cemsinan Deliduman
openaire +4 more sources