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strong lensing

Strong lensing studies with the 3.6-m Devasthal Optical Telescope: opportunities and challenges

Strong lensing studies with the 3.6-m Devasthal Optical Telescope: opportunities and challenges

... gravitational lensingstrong-lensing – observations – time-delay – cosmology 1 Introduction The phenomenon of gravitational lensing (GL), namely the deflection of light from a distant source ...

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CLASH-VLT: A highly precise strong lensing model  of the galaxy cluster RXC J2248.7−4431 (Abell S1063)  and prospects for cosmography

CLASH-VLT: A highly precise strong lensing model of the galaxy cluster RXC J2248.7−4431 (Abell S1063) and prospects for cosmography

... of the main lens and of the cosmological model not including in the mass perturbers along the line-of-sight. Next, we consider a set of 20 more realistic simulations, each of which containing ten different dPIE mass ...

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A new window of exploration in the mass spectrum: strong lensing by galaxy groups in the SL2S

A new window of exploration in the mass spectrum: strong lensing by galaxy groups in the SL2S

... the strong lensing legacy survey A straightforward method for finding lens systems is to iden- tify them directly within existing multi-band wide-field imag- ing ...the Strong Lensing Legacy ...

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Analysis of luminosity distributions of strong lensing galaxies: subtraction of diffuse lensed signal

Analysis of luminosity distributions of strong lensing galaxies: subtraction of diffuse lensed signal

... Gravitational lensing: strong 1. Introduction Gravitational lensing is a powerful tool to address many astrophysical questions, ranging from cosmology to galaxy formation and evolution, as it o ffers ...

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Two Accurate Time-delay Distances from Strong Lensing: Implications for Cosmology

Two Accurate Time-delay Distances from Strong Lensing: Implications for Cosmology

... f such that the reduced χ 2 is ∼1 for the lensed image reconstruc- tion (see, e.g., Suyu et al. 2006 for details on the computation of the reduced χ 2 that takes into account the regularization on the source pixels). ...

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Strong lensing reveals jets in a sub-microJy radio-quiet quasar

Strong lensing reveals jets in a sub-microJy radio-quiet quasar

... the lensing mass itself points to a non-smooth mass distribution, hinting at the presence of dark matter substructure which has manifested as astrometric perturbations of the VLBI lensed ...

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Source-position transformation: an approximate invariance in strong gravitational lensing

Source-position transformation: an approximate invariance in strong gravitational lensing

... same strong lensing properties as the original lens) and the de- flection obtained from ˆκ di ffer by less than the smallest angular scale on which modeling by a smooth mass distribution is still ...

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Characterisation of mass-to-light ratios in early-type galaxies through strong gravitational lensing

Characterisation of mass-to-light ratios in early-type galaxies through strong gravitational lensing

... Second, strong lensing observations generally provide a small number of constraints per system, since there are at best four images of the source, each with their positions, time delays and flux ...

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Probing the inner structure of distant AGNs with gravitational lensing

Probing the inner structure of distant AGNs with gravitational lensing

... ]. Strong gravitational lensing produces multiple images of the AGN separated on the sky by a few ...scale strong lensing effect produced by the stars in the lensing ...the ...

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Analysis of luminosity distributions and shape parameters of strong gravitational lensing elliptical galaxies

Analysis of luminosity distributions and shape parameters of strong gravitational lensing elliptical galaxies

... Several gravitational lenses surveys have been conducted during the past decade. One of the most fruitful lens galaxy- hunting programmes has been the SLACS survey (Bolton et al. 2006). In that sample, the light of a ...

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Detecting stellar lensing of gravitational waves with ground-based observatories

Detecting stellar lensing of gravitational waves with ground-based observatories

... gravitational-wave lensing events caused by stellar mass ...of lensing by multiple stars, as is the case if the gravitational radiation is passing through a galactic nucleus or a dense star ...

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Strong Collapse for Persistence

Strong Collapse for Persistence

... using strong collapses, as introduced by ...To strong collapse a simplicial complex, we only need to store the maximal simplices of the complex, not the full set of all its simplices, which saves a lot of ...

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Observing Quantum Vacuum Lensing in Magnetized Neutron Star Binary System

Observing Quantum Vacuum Lensing in Magnetized Neutron Star Binary System

... In conclusion, we have shown that the magneto-optical properties of the quantum vacuum induced by the very high magnetic field in the vicinity of a neutron star can affect the propagation of light passing near such a ...

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Weak and strong triggers

Weak and strong triggers

... of strong triggers, namely their resistance to accommodation under Abusch’s configuration seems to evaporate in the presence of particular ...directly strong and weak triggers, so we cannot con- clude that ...

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Constraining the QSO luminosity function using gravitational lensing statistics

Constraining the QSO luminosity function using gravitational lensing statistics

... We discuss the QSO analysis pipeline developed to compute the gravitational lensing probabilities of each QSO and then present the constraints on the QSO luminosity [r] ...

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Damage to masonry constructions by the ice-lensing mechanism

Damage to masonry constructions by the ice-lensing mechanism

... Since the four basic conditions - fine pore structure, low tensile strength, fteezing, and high moisture content - are required simultaneously, sufficient modificatio[r] ...

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Soil moisture redistribution by ice lensing in freezing soils

Soil moisture redistribution by ice lensing in freezing soils

... / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. Access and use of [r] ...

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A new model to predict weak-lensing peak counts

A new model to predict weak-lensing peak counts

... Bergé et al. 2010 ). Peaks, defined as local maxima of the lensing signal, are direct tracers of high-mass regions in the large-scale structure of the Universe. In the medium and high signal-to-noise (S /N) ...

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Source-lens clustering and intrinsic-alignment bias of weak-lensing estimators

Source-lens clustering and intrinsic-alignment bias of weak-lensing estimators

... gravitational lensing signal, because it is restricted to density fluctuations close to the observed galaxies whereas the full signal arises from density fluctuations along the whole line of ...the lensing ...

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From sure to strong diversification

From sure to strong diversification

... This paper presents two mains results, the first one is a characterization of weak risk aversion in terms of preference for sure diversification, a notion previously introduced in [7] in the context of uncertainty, the ...

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