symmetric ring galaxy (SRG) modelThis paper proposes a symmetric ring galaxy (SRG) model based on the general structure of galaxies. Based on this model, we have obtained results that are consistent with the actual observation results of the galaxy rotation curve, thus solving the problem of ...
GalaxyRotation CurveThe purpose is to treat the rotation curve of our galaxy, almost flat. The main cause would be due to the dark matter, which still has not been found. Thus, it is here proposed a disk model in 1/r within Newtonian mechanics. In such case, it is calculated the ...
The rotation curve data for spiral galaxies are consistent with the dark matter distributed in their halo. This dark halo constitutes much of the galaxys total mass. All baryonic matter (stars, star clusters, ISM, etc.) are held together by the gravitational potential of this dark matter halo...
this led to a remarkably small gravitational coupling G variation (about or less than 10^{-12} of its value per light-year), while also capable of generating galaxy rotation curves about as good as the best phenomenological dark matter profiles (considering both the rotation curve shape and th...
11 This last solution, Curve e in Fig. 2(e) in particular, is of interest, since it might explain the observed large scale structure of galaxy number counts as a function of red shift.[6,7] The number of galaxies dN which are located between the comoving distance r and r + dr at...
In this work, the results after four of these iterations, have provided a reasonable fit to the observed galaxy rotation curve, We solved Eq. (49), with \(s=\frac{1}{\phi }\), using 3D DCT with Octave (a clone of Matlab). DCT was preferred over Fast Fourier transform (FFT), ...
The rotation curve of the edge-on disk galaxy NGC 5907 can be interpreted in terms of a two-component model, consisting of a truncated exponential disk and of a spherical halo. About 60% of the total mass inside the edge of the disk turns out to be in the halo. Indicative masses for...
We then apply the effective potential with the fixed universal parameters to the Ursa-Major catalog of galaxies and obtain good fits to galaxy rotation curve data with an average value of $\bar{\chi^2} = 1.07 $. In the fitting process, only the stellar mass-to-light ratio $(M/L)$ ...
α Rotation Curve Dark Matter Haloes in Interacting Isolated Galaxy Pairs: The Importance of the H α Rotation CurveDark Matter Haloes in Interacting Isolated Galaxy Pairs: The Importance of the H α Rotation Curvedoi:10.1007/978-94-017-3311-3_94...
In the immediate vicinity of NGC 1316 these pathways appear to form extensions to the major axis of the main elliptical body of the galaxy. This major axis makes an angle of about 45掳 with the line joining the radio maxima. Further out the pathways curve sharply and enter the radio ...