Results 81 to 90 of about 797,854 (217)

3C 268.4 -- Evidence for the Presence of a Gravitationally-Lensed Secondary Image [PDF]

, 1976
N. Sanitt
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Cosmography with the Double-source-plane Strong Gravitational Lens AGEL150745+052256

The Astrophysical Journal
Strong gravitational lenses with two background sources at widely separated redshifts are a promising independent probe of cosmological parameters. We can use these systems, known as double-source-plane lenses (DSPLs), to measure the ratio ( β ) of ...
Nandini Sahu, Anowar J. Shajib, Kim-Vy Tran, Hannah Skobe, Sunny Rhoades, Tucker Jones, Karl Glazebrook, Thomas E. Collett, Sherry H. Suyu, Keerthi Vasan G. C., Tania M. Barone, Duncan J. Bowden, Daniel Ballard, Glenn G. Kacprzak, Sarah M. Sweet, Geraint F. Lewis, Themiya Nanayakkara   +16 more
doaj   +1 more source

Probing massive gravitons in f(R) with lensed gravitational waves

Physics Letters B
We investigate the novel features of gravitational wave solutions in f(R) gravity under proper gauge considerations in the shifted Ricci scalar background curvature (R1+ϵ).
Vipin Kumar Sharma, Sreekanth Harikumar, Margherita Grespan, Marek Biesiada, Murli Manohar Verma   +4 more
doaj   +1 more source

Strong gravitational lensing by a charged Kiselev black hole

European Physical Journal C: Particles and Fields, 2017
We study the gravitational lensing scenario where the lens is a spherically symmetric charged black hole (BH) surrounded by quintessence matter. The null geodesic equations in the curved background of the black hole are derived.
Mustapha Azreg-Aïnou, Sebastian Bahamonde, Mubasher Jamil   +2 more
doaj   +1 more source

Astrophysics: Gravitational lenses and the missing mass [PDF]

, 1983
J. A. Peacock
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Gravitational lensing in a cold dark matter universe [PDF]

, 1988
Ramesh Narayan, Simon D. M. White
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Lensing Point-spread Function of Coherent Astrophysical Sources and Nontrivial Wave Effects

The Astrophysical Journal
Most research on astrophysical lensing has been conducted using the geometric optics framework, where there exists a clear concept of lensing images. However, wave optics effects can be important for coherent sources, e.g., pulsars, fast radio bursts ...
Xun Shi
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Gravitational lensing and galaxy shape [PDF]

, 1985
R. L. Webster
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AGEL: Is the Conflict Real? Investigating Galaxy Evolution Models Using Strong Lensing at 0.3 < z < 0.9

The Astrophysical Journal
Observed evolution of the total mass distribution with redshift is crucial to testing galaxy evolution theories. To measure the total mass distribution, strong gravitational lenses complement the resolved dynamical observations that are currently limited
Nandini Sahu, Kim-Vy Tran, Sherry H. Suyu, Anowar J. Shajib, Sebastian Ertl, Glenn G. Kacprzak, Karl Glazebrook, Tucker Jones, Keerthi Vasan G. C., Tania M. Barone, A. Makai Baker, Hannah Skobe, Caro Derkenne, Geraint F. Lewis, Sarah M. Sweet, Sebastian Lopez   +15 more
doaj   +1 more source

Influence of gravitational tilt on the thermocapillary convection in a non-axisymmetric liquid bridge

New Journal of Physics
Fluid slosh caused by residual acceleration in microgravity is a common problem encountered in space engineering. To solve this problem, the ground-based experiment research on the influence of gravity jitter and gravitational tilt on the thermocapillary
Shuo Yang, Yupeng Zhang, Jie Cui, Daocheng Qin, Yuhang Wang, Pushi Ge, Jintao Luo, Duojiao Guan, Yunyi Zheng   +8 more
doaj   +1 more source