Results 181 to 190 of about 1,242,731 (210)

A binary merger product as the direct progenitor of a Type II-P supernova

Niu* Z, Sun* N, Zapartas* E, Souropanis D, Cui Y, Maund JR, Andrews JJ, Briel MM, Fraser M, Gossage S, Kruckow MU, Liotine C, Liu Z, Srivas PM, Teng E, Wang X, Yang Y, Liu J.   +17 more
europepmc   +1 more source

Rotation Curves of Spiral Galaxies [PDF]

Annual Review of Astronomy and Astrophysics, 2001
▪ Abstract  Rotation curves of spiral galaxies are the major tool for determining the distribution of mass in spiral galaxies. They provide fundamental information for understanding the dynamics, evolution, and formation of spiral galaxies. We describe various methods to derive rotation curves and review the results obtained.
Yoshiaki Sofue
exaly   +3 more sources

Towards the Explanation of Flatness of Galaxies Rotation Curves

Universe, 2022
We suggest a new explanation of the flatness of galaxies rotation curves without invoking dark matter. For this purpose, a new gravitational tensor field is introduced in addition to the metric tensor.
Sergey A Larin
exaly   +4 more sources

Modified Gravity as a Common Cause for Cosmic Acceleration and Flat Galaxy Rotation Curves

International Journal of Modern Physics D, 2012
Flat galaxy rotation curves and the accelerating Universe both imply the existence of a critical accelera-tion, which is of the same order of magnitude in both the cases, in spite of the galactic and cosmic length scales being vastly different.
Tejinder P Singh
exaly   +1 more source

Some of the next articles are maybe not open access.

Related searches:

The Rotation Curve of our Galaxy

Applied Mechanics and Materials, 2014
The rotation curve of our Galaxy is derived from a large sample of objects with known radial velocities and distances. We collect data as completely as possible, especially the data with accurately measured trigonometric parallaxes. These observations are used to construct a highly accurate rotation curve of the Galaxy.
Wei Bin Shi, Gui Ping Ruan
openaire   +1 more source

The Dynamics of Galaxy Rotational Curves

Space 2006, 2006
During the 1980’s, the first astronomical evidence was obtained that appeared to indicate spiral galaxies, (see Figure 1) do not rotate according to Newton’s’ Second Law of Motion: F=MA. The observations suggest that the outer stars in galaxies seem to rotate too fast for the amount of matter we see in the galaxy.
openaire   +1 more source

The Rotation Curve of the Galaxy

1983
The determination of the rotation curve of the Galaxy, θ(R), where θ is the circular velocity at galactocentric distance R, involves the synthesis of a large body of complementary (and sometimes contradictory) data. The synthesis has to be guided to some extent by theoretical considerations such as studying the distribution of mass in the Galaxy, i.e ...
openaire   +1 more source

The kinematic effects on the rotation curve of a galaxy

Astrophysics and Space Science, 1988
In this paper, it is pointed out that if the spiral galaxy revolves about some common centre as a whole, the rotation curve will be changed by the kinematic effects. The common centre could be the centre of supercluster or the centre of dark matter and luminous matter.
Chongming Xu, Xuejun Wu
openaire   +1 more source

A Simple Galaxy Model Explains the Rotation Curve of Galaxies

2023
This article proposes a simple galaxy model to explain the galaxy rotation ...
openaire   +2 more sources

ROTATION CURVES OF SPIRAL GALAXIES

2007
Susan A. Kassin, Roelof S. de Jong
openaire   +1 more source