Results 31 to 40 of about 1,219,804 (296)

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

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

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

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

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

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

Best-Fit of Implicit Surfaces and Plane Curves

open access: yes, 2022
S.1-14Dimensional model fitting to a set of given points is a relevant subject in various disciplines of science and engineering. In this paper, we present a universal, and very efficient, best-fit algorithm for implicit surfaces and plane curves, by ...
Ahn, S.J., Rauh, W., Warnecke, H.-J.
core   +1 more source

The rotation curves shapes of late-type dwarf galaxies [PDF]

open access: yes, 2008
We present rotation curves derived from Hi observations for a sample of 62 galaxies that have been observed as part of the Westerbork Hi Survey of Spiral and Irregular Galaxies (WHISP) project.
J. M. van der Hulst   +8 more
core   +1 more source

Rotation curves of luminous spiral galaxies

open access: yes, 2011
We have investigated the stellar light distribution and the rotation curves of high-luminosity spiral galaxies in the local Universe. The sample contains 30 high-quality extended H\alpha and H I rotation curves.
PIZZELLA, ALESSANDRO   +14 more
core   +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

Home - About - Disclaimer - Privacy