Constraints on Compact Dark Matter from the Nonobservation of Gravitational-wave Strong Lensing
The Astrophysical JournalWe use the nonobservation of strong lensing of gravitational waves (GWs) in the first three observation runs of the LIGO and Virgo detectors to constrain the fraction of dark matter in the form of compact objects (COs) in the mass range 10 ^6 −10 ^9 M _⊙
A. Barsode, S. J. Kapadia, P. Ajith
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A Novel Test for MOND: Gravitational Lensing by Disk Galaxies
The Astrophysical JournalDisk galaxies represent a promising laboratory for the study of gravitational physics, including alternatives to dark matter (DM), owing to the possibility of coupling rotation curves’ dynamical data with strong gravitational lensing (SGL) observations ...
Christopher Harvey-Hawes, Marco Galoppo
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Strong gravitational lensing in Horndeski theory of gravity [PDF]
Physical Review D, 2023 In this paper we build the general formalism of gravitational lensing in luminal Horndeski theories, deriving the Jacobi matrix equation and the general angular diameter distance in these theories through the screen space formalism.
P. Bessa
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Consistent clustering and lensing of SDSS-III BOSS galaxies with an extended abundance matching formalism [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Several analyses have shown that ΛCDM-based models cannot jointly describe the clustering (GC) and galaxy-galaxy lensing (GGL) of galaxies in the SDSS-III BOSS survey, which is commonly known as the “lensing-is-low problem”.
S. Contreras +2 more
semanticscholar +1 more source
Prospects of testing late-time cosmology with weak lensing of gravitational waves and galaxy surveys [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 We investigate the synergy of upcoming galaxy surveys and gravitational wave (GW) experiments in constraining late-time cosmology, examining the cross-correlations between the weak lensing of gravitational waves (GW-WL) and the galaxy fields.
Anna Balaudo +4 more
semanticscholar +1 more source
Modified gravitational wave propagation with higher modes and its degeneracies with lensing [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 Low-energy alternatives to General Relativity (GR) generically modify the phase of gravitational waves (GWs) during their propagation. As detector sensitivities increase, it becomes key to understand how these modifications affect the GW higher modes and
J. Ezquiaga +4 more
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Strong gravitational lensing by rotating Simpson-Visser black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We investigate strong field gravitational lensing by rotating Simpson-Visser black hole, which has an additional parameter (0 ≤ l/2M ≤ 1), apart from mass (M) and rotation parameter (a).
Shafqat Ul Islam +2 more
semanticscholar +1 more source
Line-of-sight effects in strong gravitational lensing [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 While most strong-gravitational-lensing systems may be roughly modelled by a single massive object between the source and the observer, in the details all the structures near the light path contribute to the observed images.
P. Fleury, J. Larena, J. Uzan
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Galaxy-scale Test of General Relativity with Strong Gravitational Lensing [PDF]
Astrophysical Journal, 2021 Although general relativity (GR) has been precisely tested at the solar system scale, precise tests at a galactic or cosmological scale are still relatively insufficient.
Xiaohong Liu +3 more
semanticscholar +1 more source
Recursion relations for gravitational lensing [PDF]
General Relativity and Gravitation, 2020 The weak gravitational lensing formalism can be extended to the strong lensing regime by integrating a nonlinear version of the geodesic deviation equation.
B. D. Normann, C. Clarkson
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