Results 91 to 100 of about 95,116 (297)
, 2021 Strong gravitational lensing of gravitational waves can produce duplicate signals separated in time with different amplitudes. We consider the case in which strong lensing produces identifiable gravitational-wave events and weaker sub-threshold signals ...
Chan, C. L. +6 more
core
What does a binary black hole merger look like? [PDF]
, 2015 We present a method of calculating the strong-field gravitational lensing caused by many analytic and numerical spacetimes. We use this procedure to calculate the distortion caused by isolated black holes and by numerically evolved black hole binaries ...
Bohn, Andy +6 more
core +2 more sources
Analytical approach to strong gravitational lensing from ultracompact objects [PDF]
Physical Review D, 2019 Strong gravitational lensing from black holes results in the formation of relativistic images, in particular, relativistic Einstein rings. For objects with event horizons, the radius of the unstable light ring (photon sphere) is the lowest radius at ...
R. Shaikh +3 more
semanticscholar +1 more source
Phytoplankton Tune Local pH to Actively Modulate Circadian Gravitactic Behavior
Advanced Physics Research, EarlyView.Diel vertical migration hides an unexpected twist: Phytoplankton quietly engineer their local pH landscape, splitting into behaviorally distinct sub‐groups which stay separated even in identical conditions. Circadian pH changes, occuring over the course of a day, reshape their gravitactic behavior and physiological functions in ways scientists have ...
Arkajyoti Ghoshal +4 more
wiley +1 more source
Star Formation under a Cosmic Microscope: Highly Magnified z = 11 Galaxy behind the Bullet Cluster
The Astrophysical Journal LettersWe present measurements of stellar population properties of a newly discovered, spectroscopically confirmed, $z=11.1{0}_{-0.26}^{+0.11}$ , gravitationally lensed galaxy, using JWST NIRSpec PRISM spectroscopy and NIRCam imaging.
Maruša Bradač +22 more
doaj +1 more source
Time delay of photons coupled to Weyl tensor in a regular phantom black hole
European Physical Journal C: Particles and Fields, 2020 Time delay of the photons coupled to the Weyl tensor in a regular phantom black hole is investigated in both weak and strong deflection gravitational lensing. We find that the time delay in the weak deflection lensing strongly depends on the phantom hair
Xu Lu, Yi Xie
doaj +1 more source
Strong gravitational lensing by Schwarzschild black holes
Astrophysics, 2008 13 pages, 3 ...
Bisnovatyi-Kogan, G. S., Tsupko, O. Yu.
openaire +3 more sources
Poor Groups Around Strong Gravitational Lenses [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractPoor groups are common and interactive environments for galaxies, and thus are important laboratories for studying galaxy evolution. Unfortunately, little is known about groups at z ≥ 0.1, because of the difficulty in identifying them in the first place. Here we present results from our ongoing survey of the environments of strong gravitational
Ivelina Momcheva +3 more
openaire +1 more source
Anatomical Sciences Education, EarlyView.Abstract While gamified learning platforms show promise for engaging digital learners and promoting active learning, evidence of their effectiveness in predicting academic outcomes remains limited. This study examined how engagement patterns and incentives impact academic outcomes in a gamified environment to determine whether a formative question bank
Mohammad Aldalou +5 more
wiley +1 more source
Quasar Milli-lensing and Cold Dark Matter (TNG50) Subhaloes. I. Image Splitting
The Astrophysical JournalWe use numerical mass density profiles from the TNG50 simulation to study the impact of gravitational milli-lensing by dark matter subhaloes on the images of lensed quasars.
E. Mediavilla +3 more
doaj +1 more source