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   Articles with "strong lensing" as a keyword



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Testing the cosmic curvature at high redshifts: the combination of LSST strong lensing systems and quasars as new standard candles

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recommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/staa1539

Abstract: The cosmic curvature, a fundamental parameter for cosmology could hold deep clues to inflation and cosmic origins. We propose an improved model-independent method to constrain the cosmic curvature by combining the constructed Hubble diagram of… read more here.

Keywords: strong lensing; standard candles; model; lensing systems ... See more keywords
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Cosmography using strong-lensing systems and cosmic chronometers

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recommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stab2465

Abstract: Using a new sub-sample of observed strong gravitational lens systems, for the first time, we present the equation for the angular diameter distance in the y-redshift scenario for cosmography and use it to test the… read more here.

Keywords: systems cosmic; strong lensing; cosmography using; lensing systems ... See more keywords
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Stellar-mass microlensing of gravitational waves

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recommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stab579

Abstract: When gravitational waves pass through the nuclear star clusters of galactic lenses, they may be microlensed by the stars. Such microlensing can cause potentially observable beating patterns on the waveform due to waveform superposition and… read more here.

Keywords: microlensing gravitational; strong lensing; gravitational waves; mass ... See more keywords
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Strong lensing constraints on primordial black holes as a dark matter candidate

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recommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stad1313

Abstract: Dark matter could comprise, at least in part, primordial black holes (PBH). To test this hypothesis, we present an approach to constrain the PBH mass (MPBH) and mass fraction (fPBH) from the flux ratios of… read more here.

Keywords: primordial black; dark matter; strong lensing; mass ... See more keywords
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UNCOVERing the extended strong lensing structures of Abell 2744 with the deepest JWST imaging

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recommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stad1627

Abstract: We present a new parametric lens model for the massive galaxy cluster Abell 2744 based on new ultra-deep JWST imaging taken in the framework of the UNCOVER program. These observations constitute the deepest JWST images of… read more here.

Keywords: abell 2744; deepest jwst; cluster; strong lensing ... See more keywords
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The mass distribution of the unusual merging cluster Abell 2146 from strong lensing

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recommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/stw2425

Abstract: Abell 2146 consists of two galaxy clusters that have recently collided close to the plane of the sky, and it is unique in showing two large shocks on Chandra X-ray Observatory images. With an early… read more here.

Keywords: strong lensing; dark matter; abell; abell 2146 ... See more keywords
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Model selection with strong-lensing systems

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty1365

Abstract: Chinese Academy of Sciences Visiting Professorships for Senior International Scientists under grant 2012T1J0011, Chinese State Administration of Foreign Experts Affairs under grant GDJ20120491013 read more here.

Keywords: lensing systems; model selection; strong lensing; selection strong ... See more keywords
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Strong lensing cross-sections for isothermal models. I. Finite source effects in the circular case

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty2412

Abstract: The strong galaxy-galaxy lensing produces highly magnified and distorted images of background galaxies in the form of arcs and Einstein rings. Statistically, these effects are quantified, for example, in the number counts of highly luminous… read more here.

Keywords: strong lensing; lensing cross; source; cross ... See more keywords
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The distance sum rule from strong lensing systems and quasars – test of cosmic curvature and beyond

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recommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"

DOI: 10.1093/mnras/sty3175

Abstract: Testing the distance-sum-rule in strong lensing systems provides an interesting method to determine the curvature parameter $\Omega_k$ using more local objects. In this paper, we apply this method to a quite recent data set of… read more here.

Keywords: strong lensing; distance; model; lensing systems ... See more keywords
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Strong lensing constraints on modified gravity models

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recommendations! Published in 2018 at "Physical Review D"

DOI: 10.1103/physrevd.98.124027

Abstract: We impose the first strong-lensing constraints on a wide class of modified gravity models where an extra field that modifies gravity also couples to photons (either directly or indirectly through a coupling with baryons) and… read more here.

Keywords: constraints modified; strong lensing; gravity models; lensing constraints ... See more keywords