Results 31 to 40 of about 139,273 (95)
Emergent Gravity requires (kinematic) non-locality
, 2014 This work refines arguments forbidding non-linear dynamical gravity from appearing in the low energy effective description of field theories with local kinematics, even for those with instantaneous long-range interactions.
Marolf, Donald
core +2 more sources
Anisotropic Hubble expansion of large scale structures [PDF]
, 2005 We investigate the dynamics of an homogenous distribution of galaxies moving under the cosmological expansion through Euler-Poisson equations system.
A. Dekel +16 more
core +4 more sources
Rapid BAL Variability: Re-Emerging Absorption
Frontiers in Astronomy and Space Sciences, 2017 We study BAL variations of SDSS J141955.28+522741.4 utilizing 32 epochs of spectroscopic observations from SDSS. We identify three individual BAL troughs for C iv and one BAL trough for Si iv.
Damla Erakuman +2 more
doaj +1 more source
Modelling the dynamics and kinematics of mechanical systems with multibond graphs [PDF]
, 1985 A method to model mechanical systems with multibond graphs is described. The method is based on the description of the vector velocity relation of a moving point in a rotating system. This relation is incorporated in a bond graph.
Bos, A.M., Tiernego, M.J.L.
core +3 more sources
A Study of the Properties and Dynamics of the Disk of Satellites in a Milky-Way-like Galaxy System
Galaxies, 2023 The dynamics of the satellite systems of Milky-Way-like galaxies offer a useful means by which to study the galaxy formation process in the cosmological context. It has been suggested that the currently observed anisotropic distribution of the satellites
Xinghai Zhao +3 more
doaj +1 more source
Gas Motion Mapping for Three Seyfert Galaxies
Open Astronomy, 2011 We report the preliminary results of a kinematical study of three Seyfert galaxies selected from a sample of nearby active galactic nuclei observed using 3D spectroscopy.
Smirnova A. +3 more
doaj +1 more source
A Complex Stellar Line-of-Sight Velocity Distribution in the Lenticular Galaxy NGC 524
Open Astronomy, 2011 We present a detailed study of the stellar and gaseous kinematics in the luminous early-type galaxy NGC 524, derived from the long-slit spectroscopic observations obtained with the Russian 6 m telescope and the IFU data from the SAURON survey.
Katkov I. +4 more
doaj +1 more source
Kinematic Modeling of Distant Galaxies
Open Astronomy, 2012 Evolution of galaxies is one of the most actual topics in astrophysics. Among the most important factors determining the evolution are two galactic components which are difficult or even impossible to detect optically: the gaseous disks and the dark ...
Kipper Rain, Tempel Elmo, Tamm Antti
doaj +1 more source
Centers of Mass and Rotational Kinematics for the Relativistic N-Body Problem in the Rest-Frame Instant Form [PDF]
, 2001 In the Wigner-covariant rest-frame instant form of dynamics it is possible to develop a relativistic kinematics for the N-body problem. The Wigner hyperplanes define the intrinsic rest frame and realize the separation of the center-of-mass. Three notions
Alba D. +20 more
core +2 more sources
UniverseTo clarify the problem of outer cold gas accretion onto disk galaxies, we performed the panoramic spectroscopy of six compact galaxy groups to search for intergalactic gas flows.
Olga Sil’chenko +4 more
doaj +1 more source