Mean Resultant Length as a Measure of the Lopsidedness of Satellite Galaxy Distributions

2021 ◽  
Vol 5 (3) ◽  
pp. 57
Author(s):  
Tereasa G. Brainerd ◽  
Adam Samuels
Keyword(s):  
Satellite Galaxy ◽  
Resultant Length

A dwarf satellite galaxy in Sagittarius

Nature ◽  
1994 ◽  
Vol 370 (6486) ◽  
pp. 194-196 ◽  
Author(s):  
R. A. Ibata ◽  
G. Gilmore ◽  
M. J. Irwin
Keyword(s):  
Satellite Galaxy

An Inverse Force Analysis of a Planar Two-Spring System

1994 ◽  
Author(s):  
Thomas M. Pigoski ◽  
Joseph Duffy
Keyword(s):  
The Other ◽  
Spring Stiffness ◽  
Force Analysis ◽  
Degree Polynomial ◽  
Real Solutions ◽  
Variable Elimination ◽  
Spring System ◽  
The Common ◽  
Resultant Length ◽  
Inverse Force

Abstract A closed-form inverse force analysis was performed on a planar two-spring system. The two springs were grounded to pivots at one end and attached to a common pivot at the other. A known force was applied to the common pivot of the system, and it was required to determine all of the assembly configurations. By variable elimination, a sixth degree polynomial in the resultant length of one spring was derived, and from this, six real solutions of the point of application of force were obtained. Following this, the applied force was incremented along a line and the six paths of the moving pivot were tracked starting from the zero-load configurations. An analysis of these results showed stability phenomena indicating the workspace of this system contained regions of negative spring stiffness and points of catastrophe.

scholarly journals The post-infall evolution of a satellite galaxy

2015 ◽  
Vol 582 ◽  
pp. A23 ◽  
Author(s):  
Matthew Nichols ◽  
Yves Revaz ◽  
Pascale Jablonka
Keyword(s):  
Satellite Galaxy

scholarly journals LINER-like emission in red galaxies: evolutionary phase or recurring phenomenon?

2007 ◽  
Vol 3 (S245) ◽  
pp. 181-184
Author(s):  
Genevieve J. Graves
Keyword(s):  
Stellar Population ◽  
Velocity Dispersion ◽  
Large Fraction ◽  
Optical Emission ◽  
Ionized Gas ◽  
Satellite Galaxy ◽  
The Galaxy ◽  
Evolutionary Phase ◽  
Interstellar Material ◽  
Red Galaxies

AbstractWe present recent results showing that a large fraction of red sequence galaxies contain ionized gas with LINER-like optical emission line ratios. This emission is more frequently found in galaxies with lower central velocity dispersion (σ) and these galaxies typically have younger mean ages than galaxies at the same σ which do not host emission. We suggest that the presence of LINER-like emission may be determined by the quantity of interstellar material in these galaxies and may be associated with the recent accretion of a gas-rich satellite galaxy or alternatively with stellar mass loss that declines as the galaxy stellar population ages.

scholarly journals Gravitational detection of a low-mass dark satellite galaxy at cosmological distance

Nature ◽  
2012 ◽  
Vol 481 (7381) ◽  
pp. 341-343 ◽  
Author(s):  
S. Vegetti ◽  
D. J. Lagattuta ◽  
J. P. McKean ◽  
M. W. Auger ◽  
C. D. Fassnacht ◽  
...  
Keyword(s):  
Cosmological Distance ◽  
Satellite Galaxy ◽  
Low Mass

scholarly journals EVOLUTION OF A DWARF SATELLITE GALAXY EMBEDDED IN A SCALAR FIELD DARK MATTER HALO

2015 ◽  
Vol 810 (2) ◽  
pp. 99 ◽  
Author(s):  
Victor H. Robles ◽  
V. Lora ◽  
T. Matos ◽  
F. J. Sánchez-Salcedo
Keyword(s):  
Dark Matter ◽  
Scalar Field ◽  
Dark Matter Halo ◽  
Satellite Galaxy

scholarly journals CLUSTER 77 IN NGC 4449: THE NUCLEUS OF A SATELLITE GALAXY BEING TRANSFORMED INTO A GLOBULAR CLUSTER?

2011 ◽  
Vol 745 (1) ◽  
pp. L1 ◽  
Author(s):  
F. Annibali ◽  
M. Tosi ◽  
A. Aloisi ◽  
R. P. van der Marel ◽  
D. Martinez-Delgado
Keyword(s):  
Globular Cluster ◽  
Satellite Galaxy

scholarly journals Dynamical Friction in Disk Galaxies: The Radial Dependence

1996 ◽  
Vol 157 ◽  
pp. 372-374
Author(s):  
Mattias Wahde ◽  
Karl Johan Donner
Keyword(s):  
Numerical Simulations ◽  
Decay Time ◽  
Circular Orbit ◽  
Simple Formula ◽  
Radial Dependence ◽  
Disk Galaxies ◽  
Dynamical Friction ◽  
Satellite Galaxy ◽  
Parent Galaxy ◽  
Good Agreement

AbstractA simple formula is derived for the force of dynamical friction acting on a satellite galaxy which is moving on a nearly circular orbit around its parent galaxy. Using this formula, estimates of the decay time are computed. The results are then compared with the corresponding results from numerical simulations, and are found to be in good agreement.

scholarly journals THE MASS DEPENDENCE OF DWARF SATELLITE GALAXY QUENCHING

2014 ◽  
Vol 792 (2) ◽  
pp. 141 ◽  
Author(s):  
Colin T. Slater ◽  
Eric F. Bell
Keyword(s):  
Mass Dependence ◽  
Satellite Galaxy
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