Results 51 to 60 of about 2,871,358 (352)

SWIGLAL: Python and Octave interfaces to the LALSuite gravitational-wave data analysis libraries

SoftwareX, 2020
The LALSuite data analysis libraries, written in C, implement key routines critical to the successful detection of gravitational waves, such as the template waveforms describing the merger of two black holes or two neutron stars.
Karl Wette
doaj   +1 more source

Improved reconstruction of a stochastic gravitational wave background with LISA [PDF]

Journal of Cosmology and Astroparticle Physics, 2020
We present a data analysis methodology for a model-independent reconstruction of the spectral shape of a stochastic gravitational wave background with LISA.
R. Flauger, N. Karnesis, G. Nardini, M. Pieroni, A. Ricciardone, J. Torrado   +5 more
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

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

A cryogenic silicon interferometer for gravitational-wave detection [PDF]

Classical and quantum gravity, 2020
The detection of gravitational waves from compact binary mergers by LIGO has opened the era of gravitational wave astronomy, revealing a previously hidden side of the cosmos.
R. Adhikari, O. Aguiar, K. Arai, B. Barr, R. Bassiri, G. Billingsley, R. Birney, D. Blair, J. Briggs, A. Brooks, Daniel D. Brown, H. Cao, M. Constancio, S. Cooper, T. Corbitt, D. Coyne, E. Daw, J. Eichholz, M. Fejer, A. Freise, V. Frolov, S. Gras, A. Green, H. Grote, E. Gustafson, E. Hall, G. Hammond, J. Harms, G. Harry, K. Haughian, F. Hellman, J. Hennig, M. Hennig, S. Hild, W. Johnson, B. Kamai, D. Kapasi, K. Komori, M. Korobko, K. Kuns, B. Lantz, S. Leavey, F. Magaña-Sandoval, A. Markosyan, I. Martin, Rodica M. Martin, D. Martynov, D. McClelland, G. McGhee, J. Mills, V. Mitrofanov, M. Molina-Ruiz, C. Mow-Lowry, P. Murray, S. Ng, L. Prokhorov, V. Quetschke, S. Reid, D. Reitze, J. Richardson, R. Robie, I. Romero-Shaw, S. Rowan, R. Schnabel, M. Schneewind, B. Shapiro, D. Shoemaker, B. Slagmolen, J. Smith, J. Steinlechner, S. Tait, D. Tanner, C. Torrie, J. VanHeijningen, P. Veitch, G. Wallace, P. Wessels, B. Willke, C. Wipf, Hiroaki Yamamoto, Chunnong Zhao, L. Barsotti, R. Ward, A. Bell, R. Byer, A. Wade, W. Korth, F. Seifert, N. Smith, D. Koptsov, Z. Tornasi, A. Markowitz, G. Mansell, T. McRae, P. Altin, M. Yap, M. V. Veggel, G. Eddolls, E. Bonilla, E. Ferreira, Allan S Silva, M. A. Okada, Diego Taira, D. Heinert, J. Hough, K. Strain, A. Cumming, R. Route, D. Shaddock, M. Evans, R. Weiss   +110 more
semanticscholar   +1 more source

3D characterization of low optical absorption structures in large crystalline sapphire substrates for gravitational wave detectors

Scientific Reports, 2021
Very high-quality sapphire substrates are key elements of the cryogenic Japanese gravitational interferometer KAGRA, in which they are used to build the main mirrors, working as the test masses to sense the gravitational waves.
Manuel Marchiò, Matteo Leonardi, Marco Bazzan, Raffaele Flaminio   +3 more
doaj   +1 more source

Enhancing gravitational-wave science with machine learning [PDF]

Machine Learning: Science and Technology, 2020
Machine learning has emerged as a popular and powerful approach for solving problems in astrophysics. We review applications of machine learning techniques for the analysis of ground-based gravitational-wave (GW) detector data.
E. Cuoco, J. Powell, M. Cavaglià, K. Ackley, M. Bejger, C. Chatterjee, M. Coughlin, S. Coughlin, P. Easter, R. Essick, H. Gabbard, Timothy D. Gebhard, Shaon Ghosh, L. Haegel, A. Iess, D. Keitel, Z. Márka, S. Márka, Filip Morawski, Tri Nguyen, R. Ormiston, M. Pürrer, M. Razzano, K. Staats, G. Vajente, Daniel Williams   +25 more
semanticscholar   +1 more source

Gravitational lens time delays and gravitational waves [PDF]

Physical 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

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

Oscillations in the stochastic gravitational wave background from sharp features and particle production during inflation [PDF]

Journal of Cosmology and Astroparticle Physics, 2020
We identify a characteristic pattern in the scalar-induced stochastic gravitational wave background from particle production during inflation. If particle production is sufficiently efficient, the scalar power spectrum exhibits 𝒪(1) oscillations periodic
J. Fumagalli, S. Renaux-Petel, L. Witkowski   +2 more
semanticscholar   +1 more source