Results 21 to 30 of about 116,947 (262)

SMOOTHING ROTATION CURVES AND MASS PROFILES [PDF]

open access: yesThe Astrophysical Journal, 2015
Minor corrections in proofs and updates to references, 16 pages, 16 ...
Berrier, Joel C., Sellwood, J. A.
openaire   +2 more sources

Galactic Density and Evolution Based on the Virial Theorem, Energy Minimization, and Conservation of Angular Momentum

open access: yesGalaxies, 2018
Spiral galaxies are spinning, internally densified objects. The Virial Theorem explains galactic rotation curves via its linkage of the rotation rate to the gravitational self-potential (Ug) and the moment of inertia of oblate spheroids.
Robert E. Criss, Anne M. Hofmeister
doaj   +1 more source

Rotation Curves of High-Luminosity Spiral Galaxies and the Rotation Curve of our Galaxy [PDF]

open access: yesSymposium - International Astronomical Union, 1979
Rotation curves of high luminosity spiral galaxies are flat, to distances as great as r=49 kpc. This implies a significant mass at large r. Rotational velocities increase about 20 km/s across a spiral arm, as predicted by the density wave theory. By analogy, it is suggested that our Galaxy has a flat rotation curve out to r∼60 kpc, with V ∼ constant at
openaire   +1 more source

Galaxy Rotation Curves in Covariant Hořava-Lifshitz Gravity

open access: yesGalaxies, 2013
Using the multiplicity of solutions for the projectable case of the covariant extension of Hořava-Lifshitz gravity, we show that an appropriate choice for the auxiliary field allows for an effective description of galaxy rotation curves. This description
Jean Alexandre, Martyna Kostacinska
doaj   +1 more source

Maximal Axial Vertebral Rotation in Adolescent Idiopathic Scoliosis: Is the Apical Vertebra the Most Rotated?

open access: yesGlobal Spine Journal, 2022
Study Design: Retrospective cross-sectional study. Objectives: It is generally believed that the apical vertebra has the largest axial rotation in adolescent idiopathic scoliosis.
Kristóf József MD   +6 more
doaj   +1 more source

The peculiar rotation curve of NGC 157 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1998
26 pages, 15 figures, LaTeX, uses mn-1.4.sty.
Ryder, S. D.   +4 more
openaire   +2 more sources

Relativistic corrections to the rotation curves of disk galaxies

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We present a method to investigate relativistic effects arising from large masses. The method is non-perturbative and employs a mean-field approximation and gravitational lensing.
Alexandre Deur
doaj   +1 more source

Numerical analysis of galactic rotation curves [PDF]

open access: yesAstrophysics and Space Science, 2015
In this paper we present the discussion on the salient points of the computational analysis that are at the basis of the paper \emph{Rotation Curves of Galaxies by Fourth Order Gravity} \citep{StSc}. In fact in this paper any galactic component (bulge, disk and Dark matter component) required an onerous numerical computation since the Gauss theorem is ...
Scelza, G., Stabile, A.
openaire   +2 more sources

Modeling the Rising Tails of Galaxy Rotation Curves

open access: yesGalaxies, 2019
It is well known, but under-appreciated in astrophysical applications, that it is possible for gravity to take on a life of its own in the form of Weyl-curvature-only metrics (note that we are referring to the Weyl-only solutions of ordinary General ...
Fan Zhang
doaj   +1 more source

The universal rotation curve of spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society: Letters, 2006
Abstract The observed strong dark-to-luminous matter coupling is described by a bias relation between visible and dark matter sources. We discuss the bias which emerges in the case where the topological structure of the Universe at very large distances does not properly match that of the Friedman space. With the use of such ‘topological’
Kirillov, AA, Turaev, D
openaire   +3 more sources

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