Results 31 to 40 of about 210,118 (339)

Relative attitude stability analysis of double satellite formation for gravity field exploration in space debris environment

open access: yesScientific Reports, 2023
Spacecraft operating in low orbit are at risk of being hit by space debris. In the debris environment, the impact of debris is likely to cause the double satellite formation to exit science mode or even lead to the divergence of the control system, thus ...
Baocai Pan, Yunhe Meng
doaj   +1 more source

Pseudoplane-wave gravitational calibrator for gravitational wave observatories

open access: yesPhysical Review D, 2023
The precisions of existing gravitational calibrators for gravitational wave observatories are limited by their dependence on the relative position between the calibrators and the observatory's test masses. Here we present a novel geometry consisting of four quadrupole rotors placed at the vertices of a rectangle centered on the test mass.
M. P. Ross   +10 more
openaire   +3 more sources

The First Space-Based Gravitational-Wave Detectors [PDF]

open access: yes, 1998
Gravitational waves provide a laboratory for general relativity and a window to energetic astrophysical phenomena invisible with electromagnetic radiation.
A. Abramovici   +19 more
core   +2 more sources

Multiple imaging by gravitational waves [PDF]

open access: yes, 1997
Gravitational waves act like lenses for the light propagating through them. This phenomenon is described using the vector formalism employed for ordinary gravitational lenses, which was proved to be applicable also to a non-stationary spacetime, with the
Braginsky V. B.   +9 more
core   +3 more sources

Is it possible to detect gravitational waves with atom interferometers? [PDF]

open access: yes, 2007
We investigate the possibility to use atom interferometers to detect gravitational waves.
  +26 more
core   +2 more sources

Detection of gravitational waves by light perturbation

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Light undergoes perturbation as gravitational waves pass by. This is shown by solving Maxwell’s equations in a spacetime with gravitational waves; a solution exhibits a perturbation due to gravitational waves.
Dong-Hoon Kim, Chan Park
doaj   +1 more source

Theory of Gravitational Waves

open access: yes, 2016
The existence of gravitational radiation is a natural prediction of any relativistic description of the gravitational interaction. In this chapter, we focus on gravitational waves, as predicted by Einstein's general theory of relativity.
Novak, Jérôme, Tiec, Alexandre Le
core   +1 more source

Gravitational lens time delays and gravitational waves [PDF]

open access: yesPhysical Review D, 1994
Using Fermat's principle, we analyze the effects of very long wavelength gravitational waves upon the images of a gravitationally lensed quasar. We show that the lens equation in the presence of gravity waves is equivalent to that of a lens with different alignment between source, deflector, and observer in the absence of gravity waves.
Frieman, J., Harari, D., Surpi, G.
openaire   +3 more sources

QED factorization of two-body non-leptonic and semi-leptonic B to charm decays

open access: yesJournal of High Energy Physics, 2021
The QCD×QED factorization is studied for two-body non-leptonic and semi-leptonic B decays with heavy-light final states. These non-leptonic decays, like B ¯ s 0 → D s + π − $$ {\overline{B}}_{(s)}^0\to {D}_{(s)}^{+}{\pi}^{-} $$ and B ¯ d 0 → D + K − $$ {\
Martin Beneke   +3 more
doaj   +1 more source

Propagation of gravitational waves in the nonperturbative spinor vacuum [PDF]

open access: yes, 2014
The propagation of gravitational waves on the background of a nonperturbative vacuum of a spinor field is considered. It is shown that there are several distinctive features in comparison with the propagation of plane gravitational waves through empty ...
Dzhunushaliev, Vladimir   +1 more
core   +2 more sources

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