Generalized integral Gauss’s law of gravity formulating conservation and redistribution of gravitational flux to interpret structural-dynamical relations of disk galaxies

2021 ◽  
Author(s):  
Te-Chun Wang
Keyword(s):  
Disk Galaxies ◽  
Law Of Gravity

Density waves in disk galaxies

1967 ◽  
Vol 31 ◽  
pp. 313-317 ◽  
Author(s):  
C. C. Lin ◽  
F. H. Shu
Keyword(s):  
Mathematical Analysis ◽  
Spiral Structure ◽  
Stellar System ◽  
Collective Modes ◽  
Disk Galaxies ◽  
Spiral Pattern ◽  
Density Waves ◽  
The Galaxy ◽  
Detailed Mathematical Analysis

Density waves in the nature of those proposed by B. Lindblad are described by detailed mathematical analysis of collective modes in a disk-like stellar system. The treatment is centered around a hypothesis of quasi-stationary spiral structure. We examine (a) the mechanism for the maintenance of this spiral pattern, and (b) its consequences on the observable features of the galaxy.

Constraints on the Clumpiness of Dark Matter Halos Through Heating of Disk Galaxies

2003 ◽  
Vol 10 ◽  
pp. 95-95
Author(s):  
E. Ardi ◽  
T. Tsuchiya ◽  
A. Burkert
Keyword(s):  
Dark Matter ◽  
Disk Galaxies ◽  
Dark Matter Halos

Newtonian Gravity

2018 ◽  
Author(s):  
David M. Wittman
Keyword(s):  
Surface Gravity ◽  
Newtonian Gravity ◽  
Acceleration Field ◽  
Source Mass ◽  
Inverse Square Law ◽  
Average Acceleration ◽  
Law Of Gravity ◽  
Tidal Acceleration

Having developed a framework for subsuming gravity into relativity, we examine how gravity behaves as a function of the source mass (Earth, Sun, etc.) and distance from that sourcemass.We develop Newton’s inverse‐square law of gravity, and we examine the consequences in terms of acceleration fields, potentials, escape velocities, and surface gravity. Chapter 17 will build on these ideas to show how orbits are used to probe gravity throughout the universe.We also develop a tool for exposing variations in the acceleration field: the tidal acceleration field in any region is defined as the acceleration field in that region minus the average acceleration. This enables us to restate Newton’s lawof gravity as: the acceleration arrows surrounding any point show a net convergence that is proportional to the density of mass at that point. Chapter 18 will use this to develop a frame‐independent law of gravity.

Optical Surface Photometry of a Sample of Disk Galaxies. I. Observations and Data Reduction

2000 ◽  
Vol 119 (4) ◽  
pp. 1638-1644 ◽  
Author(s):  
J. A. L. Aguerri ◽  
A. M. Varela ◽  
M. Prieto ◽  
C. Muñoz-Tuñón
Keyword(s):  
Data Reduction ◽  
Disk Galaxies ◽  
Surface Photometry ◽  
Optical Surface

Modeling the Evolution of Disk Galaxies. I. The Chemodynamical Method and the Galaxy Model

1997 ◽  
Vol 476 (2) ◽  
pp. 544-559 ◽  
Author(s):  
M. Samland ◽  
G. Hensler ◽  
Ch. Theis
Keyword(s):  
Disk Galaxies ◽  
The Galaxy ◽  
Galaxy Model

scholarly journals Molecular Clouds and Star Formation Rate in Disk Galaxies

2016 ◽  
Vol 25 (3) ◽  
Author(s):  
E. O. Vasiliev ◽  
S. A. Khoperskov ◽  
A. V. Khoperskov
Keyword(s):  
Star Formation ◽  
Molecular Clouds ◽  
Star Formation Rate ◽  
Formation Rate ◽  
Disk Galaxies

AbstractWe use

Internal Alignment of the Halos of Disk Galaxies in Cosmological Hydrodynamic Simulations

2005 ◽  
Vol 627 (1) ◽  
pp. L17-L20 ◽  
Author(s):  
Jeremy Bailin ◽  
Daisuke Kawata ◽  
Brad K. Gibson ◽  
Matthias Steinmetz ◽  
Julio F. Navarro ◽  
...  
Keyword(s):  
Disk Galaxies ◽  
Hydrodynamic Simulations

scholarly journals Correlations among Global Photometric Properties of Disk Galaxies

2000 ◽  
Vol 533 (1) ◽  
pp. 162-171 ◽  
Author(s):  
Habib G. Khosroshahi ◽  
Yogesh Wadadekar ◽  
Ajit Kembhavi
Keyword(s):  
Disk Galaxies

scholarly journals FORMATION AND HARDENING OF SUPERMASSIVE BLACK HOLE BINARIES IN MINOR MERGERS OF DISK GALAXIES

2012 ◽  
Vol 756 (1) ◽  
pp. 30 ◽  
Author(s):  
Fazeel Mahmood Khan ◽  
Ingo Berentzen ◽  
Peter Berczik ◽  
Andreas Just ◽  
Lucio Mayer ◽  
...  
Keyword(s):  
Black Hole ◽  
Disk Galaxies ◽  
Black Hole Binaries ◽  
Supermassive Black Hole ◽  
Minor Mergers

scholarly journals Structure Formation in Anisotropic Disks

2006 ◽  
Vol 2 (S235) ◽  
pp. 143-143
Author(s):  
Eduard Vorobyov ◽  
Christian Theis
Keyword(s):  
Stability Analysis ◽  
Linear Stability ◽  
Linear Stability Analysis ◽  
Disk Galaxies ◽  
Structural Elements ◽  
Small Perturbations ◽  
Gravitational Instabilities ◽  
Hydrodynamical Simulations ◽  
Axisymmetric Structures ◽  
Insight Into

The majority of normal disk galaxies are characterized by non-axisymmetric structures like spirals or bars. These structural elements have been widely discussed in the literature as a result of gravitational instabilities which are connected to growing density waves or global instabilities of disks. A first insight into the properties of galactic discs was provided by linear stability analysis. However, a disadvantage of linear stability analysis remained its restriction to small perturbations, both in amplitude and wavelength. Thus, numerical simulations, especially hydrodynamical and stellar-hydrodynamical simulations became a primary tool for the analysis of galactic evolution.

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