Results 1 to 10 of about 2,849,050 (231)

Primordial black holes and their gravitational-wave signatures. [PDF]

Living Rev Relativ, 2023
In the recent years, primordial black holes (PBHs) have emerged as one of the most interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could explain both some of the signals from binary black hole mergers observed in ...
Bagui E, Clesse S, De Luca V, Ezquiaga JM, Franciolini G, García-Bellido J, Joana C, Kumar Jain R, Kuroyanagi S, Musco I, Papanikolaou T, Raccanelli A, Renaux-Petel S, Riotto A, Ruiz Morales E, Scalisi M, Sergijenko O, Ünal C, Vennin V, Wands D, LISA Cosmology Working Group.   +20 more
europepmc   +3 more sources

Correlation between birefringence and absorption mapping in large-size Sapphire substrates for gravitational-wave interferometry [PDF]

Scientific Reports, 2023
In high-sensitive laser interferometers, such as the gravitational-wave detector KAGRA, ultra-high-quality mirrors are essential. In the case of KAGRA, where cavity mirrors are cooled down to 20 K, large-size Sapphire crystals are used as the substrate ...
Simon Zeidler, Marc Eisenmann, Marco Bazzan, Pengbo Li, Matteo Leonardi   +4 more
doaj   +2 more sources

Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA

Living Reviews in Relativity, 2020
We present our current best estimate of the plausible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next several years, with the intention of providing information to facilitate planning for ...
K g Arun, R Birney, M W Coughlin
exaly   +2 more sources

Core Payload of the Space Gravitational Wave Observatory: Inertial Sensor and Its Critical Technologies [PDF]

Sensors
Since Einstein’s prediction regarding the existence of gravitational waves was directly verified by the ground-based detector Advanced LIGO, research on gravitational wave detection has garnered increasing attention.
Shaoxin Wang, Dongxu Liu, Xuan Zhan, Peng Dong, Jia Shen, Juan Wang, Ruihong Gao, Weichuan Guo, Peng Xu, Keqi Qi, Ziren Luo   +10 more
doaj   +2 more sources

Testing general relativity with gravitational-wave catalogs: The insidious nature of waveform systematics [PDF]

iScience, 2021
Summary: Gravitational-wave observations of binary black holes allow new tests of general relativity (GR) to be performed on strong, dynamical gravitational fields.
Christopher J. Moore, Eliot Finch, Riccardo Buscicchio, Davide Gerosa   +3 more
doaj   +2 more sources

Attitude-Orbit Coupled Control of Gravitational Wave Detection Spacecraft with Communication Delays [PDF]

Sensors, 2023
In order to meet the position and attitude requirements of spacecrafts and test masses for gravitational-wave detection missions, the attitude-orbit coordination control of multiple spacecrafts and test masses is studied.
Yu Zhang, Yuan Liu, Jikun Yang, Zhenkun Lu, Juzheng Zhang   +4 more
doaj   +2 more sources

Design method for the structure of a gravitational wave detection telescope with low TTL noise [PDF]

Scientific Reports
As a critical payload of the gravitational wave detection interferometry system, the tilt-to-length (TTL) noise has a significant influence on the detection accuracy of the interferometry system.
Sijun Fang, Wentong Fan, Rui Zhang, Jian Luo, Bohong Li, Hongwen Hai, Yehao Cao, Lei Fan, Yong Yan   +8 more
doaj   +2 more sources

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

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   +2 more sources

Gravitational-wave asteroseismology with fundamental modes from compact binary inspirals [PDF]

Nature Communications, 2020
Independently measuring the tidal deformability and the fundamental oscillation mode (fmode) frequency enables tests of gravity and the nature of compact binaries.
Geraint Pratten, Patricia Schmidt, Tanja Hinderer   +2 more
doaj   +2 more sources

The NANOGrav 15 yr Data Set: Evidence for a Gravitational-wave Background [PDF]

Astrophysical Journal Letters, 2023
We report multiple lines of evidence for a stochastic signal that is correlated among 67 pulsars from the 15 yr pulsar timing data set collected by the North American Nanohertz Observatory for Gravitational Waves.
G. Agazie, A. Anumarlapudi, A. Archibald, Z. Arzoumanian, P. Baker, B. Bécsy, L. Blecha, A. Brazier, P. Brook, S. Burke-Spolaor, R. Burnette, R. Case, M. Charisi, S. Chatterjee, K. Chatziioannou, B. Cheeseboro, Siyuan Chen, T. Cohen, J. Cordes, N. Cornish, F. Crawford, H. Cromartie, K. Crowter, C. Cutler, M. DeCesar, D. DeGan, P. Demorest, Heling Deng, T. Dolch, B. Drachler, J. Ellis, E. Ferrara, W. Fiore, E. Fonseca, G. Freedman, N. Garver-Daniels, P. Gentile, K. Gersbach, J. Glaser, D. Good, K. Gultekin, J. Hazboun, S. Hourihane, K. Islo, R. Jennings, A. Johnson, Megan L. Jones, A. Kaiser, D. Kaplan, L. Kelley, M. Kerr, J. Key, T. C. Klein, N. Laal, M. Lam, W. Lamb, T. Lazio, N. Lewandowska, T. Littenberg, Tianyu Liu, A. Lommen, D. Lorimer, Jing Luo, R. Lynch, Chung-Pei Ma, D. Madison, M. A. Mattson, A. McEwen, J. Mckee, M. Mclaughlin, N. McMann, B. Meyers, P. Meyers, C. Mingarelli, A. Mitridate, P. Natarajan, C. Ng, D. Nice, S. Ocker, K. Olum, T. Pennucci, B. Perera, P. Petrov, N. Pol, H. Radovan, S. Ransom, P. Ray, J. Romano, S. Sardesai, A. Schmiedekamp, C. Schmiedekamp, K. Schmitz, L. Schult, B. Shapiro-Albert, X. Siemens, J. Simon, M. Siwek, I. Stairs, D. Stinebring, K. Stovall, Jerry P. Sun, A. Susobhanan, J. Swiggum, Jacob M. Taylor, S. Taylor, J. Turner, C. Unal, M. Vallisneri, R. V. Haasteren, S. Vigeland, H. Wahl, Qiaohong Wang, C. Witt, O. Young   +113 more
semanticscholar   +1 more source