Results 1 to 10 of about 2,507 (214)
Gravitational Waves from Gravitational Collapse
Living Reviews in Relativity, 2011 Gravitational-wave emission from stellar collapse has been studied for nearly four decades. Current state-of-the-art numerical investigations of collapse include those that use progenitors with more realistic angular momentum profiles, properly treat ...
Chris L. Fryer, Kimberly C.B. New
exaly +2 more sources
Precise Orbit Determination and Accuracy Analysis for BDS-3 Satellites Using SLR Observations
Remote Sensing, 2023 Satellite laser ranging (SLR) is the space geodetic technique with the highest degree of range, measuring precision and distances right down to the millimeter level.
Zicong An +8 more
doaj +1 more source
New determination of |V ub /V cb | from B s 0 $$ {B}_s^0 $$ → {K − , D s − $$ {D}_s^{-} $$ }μ + ν
Journal of High Energy Physics, 2023 We update the full set of B ¯ $$ \overline{B} $$ s → K form factors using light-cone sum rules with an on-shell kaon. Our approach determines the relevant sum rule parameters — the duality thresholds — from a Bayesian fit for the first time.
Carolina Bolognani +2 more
doaj +1 more source
High-Accuracy Guide Star Catalogue Generation with a Machine Learning Classification Algorithm
Sensors, 2021 In order to detect gravitational waves and characterise their sources, three laser links were constructed with three identical satellites, such that interferometric measurements for scientific experiments can be carried out.
Jianming Zhang +4 more
doaj +1 more source
Sensors, 2023 A distributed six-degree-of-freedom (6-DOF) cooperative control for multiple spacecraft formation is investigated considering parametric uncertainties, external disturbances, and time-varying communication delays.
Yu Zhang +4 more
doaj +1 more source
The Poincaré and BMS flux-balance laws with application to binary systems
Journal of High Energy Physics, 2020 Asymptotically flat spacetimes admit both supertranslations and Lorentz transformations as asymptotic symmetries. Furthermore, they admit super-Lorentz transformations, namely superrotations and superboosts, as outer symmetries associated with super ...
Geoffrey Compère +2 more
doaj +1 more source
Metric reconstruction from celestial multipoles
Journal of High Energy Physics, 2022 The most general vacuum solution to Einstein’s field equations with no incoming radiation can be constructed perturbatively from two infinite sets of canonical multipole moments, which are found to be mapped into each other under gravitational electric ...
Geoffrey Compère +2 more
doaj +1 more source
Gravitational breathing memory and dual symmetries
Journal of High Energy Physics, 2021 Brans-Dicke theory contains an additional propagating mode which causes homogeneous expansion and contraction of test bodies in transverse directions.
Ali Seraj
doaj +1 more source
Multipole expansion of gravitational waves: from harmonic to Bondi coordinates
Journal of High Energy Physics, 2021 We transform the metric of an isolated matter source in the multipolar post-Minkowskian approximation from harmonic (de Donder) coordinates to radiative Newman-Unti (NU) coordinates.
Luc Blanchet +4 more
doaj +1 more source
Gyroscopic gravitational memory
Journal of High Energy Physics, 2023 We study the motion of a gyroscope located far away from an isolated gravitational source in an asymptotically flat spacetime. As seen from a local frame tied to distant stars, the gyroscope precesses when gravitational waves cross its path, resulting in
Ali Seraj, Blagoje Oblak
doaj +1 more source