Results 71 to 80 of about 2,866,947 (383)

Potential of Radio Telescopes as High-Frequency Gravitational Wave Detectors.

Physical Review Letters, 2021
In the presence of magnetic fields, gravitational waves are converted into photons and vice versa. We demonstrate that this conversion leads to a distortion of the cosmic microwave background (CMB), which can serve as a detector for MHz to GHz ...
V. Domcke, C. Garcia-Cely
semanticscholar   +1 more source

China’s first step towards probing the expanding universe and the nature of gravity using a space borne gravitational wave antenna

, 2021
In this perspective, we outline that a space borne gravitational wave detector network combining LISA and Taiji can be used to measure the Hubble constant with an uncertainty less than 0.5% in ten years, compared with the network of the ground based ...
The Ligo Scientific Collaboration
semanticscholar   +1 more source

Lunar Gravitational-wave Antenna [PDF]

Astrophysical Journal, 2020
Monitoring of vibrational eigenmodes of an elastic body excited by gravitational waves was one of the first concepts proposed for the detection of gravitational waves.
J. Harms, F. Ambrosino, L. Angelini, V. Braito, M. Branchesi, E. Brocato, E. Cappellaro, E. Coccia, M. Coughlin, R. Ceca, M. Valle, C. Dionisio, C. Federico, M. Formisano, A. Frigeri, A. Grado, L. Izzo, A. Marcelli, A. Maselli, M. Olivieri, C. Pernechele, A. Possenti, S. Ronchini, R. Serafinelli, P. Severgnini, M. Agostini, F. Badaracco, A. Bertolini, L. Betti, M. Civitani, C. Collette, S. Covino, S. Dall’Osso, P. D’Avanzo, R. DeSalvo, M. Giovanni, Mauro Focardi, C. Giunchi, J. V. Heijningen, N. Khetan, D. Melini, G. Mitri, C. Mow-Lowry, L. Naponiello, V. Noce, G. Oganesyan, E. Pace, H. Paik, Alessandro Pajewski, E. Palazzi, M. Pallavicini, G. Pareschi, R. Pozzobon, Ashish Sharma, G. Spada, R. Stanga, G. Tagliaferri, R. Votta   +57 more
semanticscholar   +1 more source

Characteristics of the pressure profile in the accelerator on the RF negative ion source at ASIPP

Nanotechnology and Precision Engineering, 2023
Neutral beam injection (NBI) systems based on negative hydrogen ion sources—rather than the positive ion sources that have typically been used to date—will be used in the future magnetically confined nuclear fusion experiments to heat the plasma.
Wu Mingshan, Xu Luxiang, Zhou Yanbo, Liang Lizhen, Zheng Yelong   +4 more
doaj   +1 more source

GWBENCH: a novel Fisher information package for gravitational-wave benchmarking [PDF]

Classical and quantum gravity, 2020
We present a new Python package, gwbench, implementing the well-established Fisher information formalism as a fast and straightforward tool for the purpose of gravitational-wave benchmarking, i.e.
S. Borhanian
semanticscholar   +1 more source

Gravitational wave detector response in terms of spacetime Riemann curvature

, 2013
Gravitational wave detectors are typically described as responding to gravitational wave metric perturbations, which are gauge-dependent and --- correspondingly --- unphysical quantities.
Finn, Lee Samuel, Koop, Michael J.
core   +1 more source

Swope Supernova Survey 2017a (SSS17a), the optical counterpart to a gravitational wave source [PDF]

Science, 2017
Photons from a gravitational wave event Two neutron stars merging together generate a gravitational wave signal and have also been predicted to emit electromagnetic radiation. When the gravitational wave event GW170817 was detected, astronomers rushed to
D. Coulter, R. Foley, C. Kilpatrick, M. Drout, A. Piro, B. Shappee, M. Siebert, J. Simon, N. Ulloa, D. Kasen, D. Kasen, B. Madore, B. Madore, A. Murguia-Berthier, Yen-Chen Pan, J. Prochaska, E. Ramirez-Ruiz, E. Ramirez-Ruiz, A. Rest, A. Rest, C. Rojas-Bravo   +20 more
semanticscholar   +1 more source

Signatures of the quantization of gravity at gravitational wave detectors [PDF]

Physical Review D, 2020
We develop a formalism to calculate the response of a model gravitational wave detector to a quantized gravitational field. Coupling a detector to a quantum field induces stochastic fluctuations ("noise") in the length of the detector arm.
M. Parikh, F. Wilczek, G. Zahariade
semanticscholar   +1 more source

Study of the Extremely Low-Frequency Noise Characteristics of a Micro-Thrust Measurement Platform

Micromachines
The critical structural parameters are optimized and studied using the numerical simulation method to improve the resolution and stability of the Micro-Thrust Measurement Platform (MTMP).
Liexiao Dong, Shixu Lu, Luxiang Xu, Ning Guo, Mingshan Wu, Shengtao Liang, Jianfei Long   +6 more
doaj   +1 more source

Geometric Approach to Analytic Marginalisation of the Likelihood Ratio for Continuous Gravitational Wave Searches

Universe, 2021
The likelihood ratio for a continuous gravitational wave signal is viewed geometrically as a function of the orientation of two vectors; one representing the optimal signal-to-noise ratio, and the other representing the maximised likelihood ratio or F ...
Karl Wette
doaj   +1 more source