Results 41 to 50 of about 50,454 (258)

Upper Limit of Radiation from Coalescence of Rotating Hayward Black Holes

EPJ Web of Conferences, 2018
We review the upper limit of the gravitational radiation thermally allowed under the collision of two rotating Hayward black holes. The upper limit is dependent on the gravitational spin interaction between black holes and is useful to determine one of ...
Gwak Bogeun
doaj   +1 more source

Sensing and control in dual-recycling laser interferometer gravitational-wave detectors [PDF]

, 2003
We introduce length-sensing and control schemes for the dual-recycled cavity-enhanced Michelson interferometer configuration proposed for the Advanced Laser Interferometer Gravitational Wave Observatory (LIGO).
Delker, Tom, Gray, Malcolm B., Mason, James E., McClelland, David E., Mow-Lowry, Conor, Müller, Guido, Reitze, David H., Shaddock, Daniel A., Strain, Kenneth A., Tanner, David B., Willems, Phil A.   +10 more
core   +1 more source

Atomic Interferometric Gravitational-Wave Space Observatory (AIGSO)

Communications in Theoretical Physics, 2018
9 pages, 3 ...
Gao, Dongfeng, Wang, Jin, Zhan, Mingsheng   +2 more
openaire   +2 more sources

Matrix heater in the gravitational wave observatory GEO 600 [PDF]

Optics Express, 2018
Large scale laser interferometric gravitational wave detectors (GWDs), such as GEO 600 require high quality optics to reach their design sensitivity. The inevitable surface imperfections, inhomogeneities and light-absorption induced thermal lensing in the optics can convert laser light from the fundamental mode to unwanted higher order modes, and pose ...
Wittel, H., Affeldt, C., Bisht, A., Doravari, S., Grote, H., Lough, J., Lück, H., Schreiber, E., Strain, K.A., Danzmann, K.   +9 more
openaire   +5 more sources

Gauge-Invariant Perturbation Theory on the Schwarzschild Background Spacetime Part I: Formulation and Odd-Mode Perturbations

Universe
This article is Part I of our series of full papers on a gauge-invariant “linear” perturbation theory on the Schwarzschild background spacetime which was briefly reported in our short papers by the present author in 2021.
Kouji Nakamura
doaj   +1 more source

Comparing a Gauge-Invariant Formulation and a “Conventional Complete Gauge-Fixing Approach” for l=0,1-Mode Perturbations on the Schwarzschild Background Spacetime

Universe
This article provides a comparison of the gauge-invariant formulation for l=0,1-mode perturbations on the Schwarzschild background spacetime, proposed by the same author in 2021, and a “conventional complete gauge-fixing approach” where the spherical ...
Kouji Nakamura
doaj   +1 more source

Gauge-Invariant Perturbation Theory on the Schwarzschild Background Spacetime: Part III—Realization of Exact Solutions

Universe
This is the Part III paper of our series of papers on a gauge-invariant perturbation theory on the Schwarzschild background spacetime. After reviewing our general framework for the gauge-invariant perturbation theory and the proposal for gauge-invariant ...
Kouji Nakamura
doaj   +1 more source

Design and Thermal Stability Analysis of Swing Micro-Mirror Structure for Gravitational Wave Observatory in Space

Machines, 2021
A kind of swing micro-mirror structure with high stability for gravitational wave observatory in space is proposed in this paper. As the key interface instrument in the gravitational wave observatory, the swing micro-mirror structure plays a very ...
Kunyao Zheng, Mingming Xu
doaj   +1 more source

Probing SUSY at gravitational wave observatories

Physics Letters B
Under the assumption that the recent pulsar timing array evidence for a stochastic gravitational wave (GW) background at nanohertz frequencies is generated by metastable cosmic strings, we analyze the potential of present and future GW observatories for probing the change of particle degrees of freedom caused, e.g., by a supersymmetric (SUSY) extension
Stefan Antusch, Kevin Hinze, Shaikh Saad, Jonathan Steiner   +3 more
openaire   +3 more sources

Stabilized high-power laser system for the gravitational wave detector advanced LIGO [PDF]

, 2012
An ultra-stable, high-power cw Nd:YAG laser system, developed for the ground-based gravitational wave detector Advanced LIGO (Laser Interferometer Gravitational-Wave Observatory), was comprehensively characterized.
Bogan, C., Danzmann, K., Frede, M., Kim, H., King, P., Kwee, P., Puncken, O., Pöld, J., Savage, R. L., Seifert, F., Wessels, P., Willke, B., Winkelmann, L.   +12 more
core   +1 more source