Results 31 to 40 of about 3,160,742 (266)

Detecting strong gravitational lensing of gravitational waves with TianQin

Physical Review D, 2023
When gravitational waves (GWs) pass by a massive object on its way to Earth, a strong gravitational lensing effect will happen. Thus, the GW signal will be amplified, deflected, and delayed in time. Through analyzing the lensed GW waveform, physical properties of the lens can be inferred. On the other hand, neglecting lensing effects in the analysis of
Xin-yi Lin, Jian-dong Zhang, Liang Dai, Shun-Jia Huang, Jianwei Mei   +4 more
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Study of Errors in Strong Gravitational Lensing [PDF]

The Astrophysical Journal, 2008
We examine the accuracy of strong gravitational lensing determinations of the mass of galaxy clusters by comparing the conventional approach with the numerical integration of the fully relativistic null geodesic equations in the case of weak gravitational perturbations on Robertson-Walker metrics.
Kling, Thomas P., Frittelli, S.
openaire   +3 more sources

Gravitational Lensing and Optical Geometry [PDF]

, 2020
The year 2019 saw the centenary of Eddington's eclipse expeditions and the corroboration of Einstein's general relativity by gravitational lensing. To mark the occasion, a Special Issue of Universe has been dedicated to the theoretical aspects of strong ...

core   +1 more source

Simulations of strong gravitational lensing with substructure [PDF]

Monthly Notices of the Royal Astronomical Society, 2006
Galactic sized gravitational lenses are simulated by combining a cosmological N-body simulation and models for the baryonic component of the galaxy. The lens caustics, critical curves, image locations and magnification ratios are calculated by ray-shooting on an adaptive grid.
Amara, Adam, METCALF, ROBERT BENTON, Cox, Thomas J., Ostriker, Jeremiah P.   +3 more
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Strong gravitational lenses from the Vera C. Rubin Observatory. [PDF]

Philos Trans A Math Phys Eng Sci
Like many areas of astrophysics and cosmology, the Vera C. Rubin Observatory will be transformational for almost all the applications of strong lensing, thanks to the dramatic increase in the number of known strong lenses by two orders of magnitude or ...
Shajib AJ, Smith GP, Birrer S, Verma A, Arendse N, Collett T, Daylan T, Serjeant S, LSST Strong Lensing Science Collaboration.   +8 more
europepmc   +2 more sources

Strong Lensing of Gravitational Waves as Seen by LISA [PDF]

Physical Review Letters, 2010
We discuss strong gravitational lensing of gravitational waves from merging of massive black hole binaries in the context of the LISA mission. Detection of multiple events would provide invaluable information on competing theories of gravity, evolution and formation of structures and, with complementary observations, constraints on H_0 and other ...
Sereno, M., Sesana, A., Bleuler, A., Jetzer, Ph., Volonteri, M., Begelman, M. C.   +5 more
openaire   +3 more sources

Detecting and Characterizing Young Quasars. III. The Impact of Gravitational Lensing Magnification

The Astrophysical Journal, 2023
We test the impact of gravitational lensing on the lifetime estimates of seven high-redshift quasars at redshift z ≳ 6. The targeted quasars are identified by their small observed proximity zone sizes, which indicate extremely short quasar lifetimes ( t ...
Minghao Yue, Anna-Christina Eilers, Robert A. Simcoe, Sirio Belli, Frederick B. Davies, David DePalma, Joseph F. Hennawi, Charlotte A. Mason, Julian B. Muñoz, Erica J. Nelson, Sandro Tacchella   +10 more
doaj   +1 more source

Strong gravitational lensing by Sgr A* [PDF]

Classical and Quantum Gravity, 2011
In recent years, there has been increasing recognition of the potential of the galactic center as a probe of general relativity in the strong field. There is almost certainly a black hole at Sgr A* in the galactic center, and this would allow us the opportunity to probe dynamics near the exterior of the black hole.
openaire   +2 more sources

Constraints on early dark energy from CMB lensing and weak lensing tomography [PDF]

, 2009
. We estimate the B-polarisation induced in the Cosmic Microwave Background by the non-linear evolution of density perturbations. Using the second-order Boltzmann code SONG, our analysis incorporates, for the first time, all physical effects at ...
Schafer, B., Hollenstein, Lukas, Crittenden, Robert, Sapone, D.   +3 more
core   +3 more sources

DeepZipper. II. Searching for Lensed Supernovae in Dark Energy Survey Data with Deep Learning

The Astrophysical Journal, 2023
Gravitationally lensed supernovae (LSNe) are important probes of cosmic expansion, but they remain rare and difficult to find. Current cosmic surveys likely contain 5–10 LSNe in total while next-generation experiments are expected to contain several ...
R. Morgan, B. Nord, K. Bechtol, A. Möller, W. G. Hartley, S. Birrer, S. J. González, M. Martinez, R. A. Gruendl, E. J. Buckley-Geer, A. J. Shajib, A. Carnero Rosell, C. Lidman, T. Collett, T. M. C. Abbott, M. Aguena, F. Andrade-Oliveira, J. Annis, D. Bacon, S. Bocquet, D. Brooks, D. L. Burke, M. Carrasco Kind, J. Carretero, F. J. Castander, C. Conselice, L. N. da Costa, M. Costanzi, J. De Vicente, S. Desai, P. Doel, S. Everett, I. Ferrero, B. Flaugher, D. Friedel, J. Frieman, J. García-Bellido, E. Gaztanaga, D. Gruen, G. Gutierrez, S. R. Hinton, D. L. Hollowood, K. Honscheid, K. Kuehn, N. Kuropatkin, O. Lahav, M. Lima, F. Menanteau, R. Miquel, A. Palmese, F. Paz-Chinchón, M. E. S. Pereira, A. Pieres, A. A. Plazas Malagón, J. Prat, M. Rodriguez-Monroy, A. K. Romer, A. Roodman, E. Sanchez, V. Scarpine, I. Sevilla-Noarbe, M. Smith, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, T. N. Varga   +66 more
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