Dynamical models of highly flattened oblate elliptical galaxies with De Vaucouleurs' surface-brightness profiles

1989 ◽  
Vol 97 ◽  
pp. 57 ◽  
Author(s):  
James A. Fillmore ◽  
Harold F. Levison
Keyword(s):  
Surface Brightness ◽  
Elliptical Galaxies ◽  
Dynamical Models

Orbital characteristics of dynamical models of elliptical galaxies

1986 ◽  
Vol 39 (1) ◽  
pp. 85-102 ◽  
Author(s):  
N. Caranicolas ◽  
Ch. Vozikis
Keyword(s):  
Elliptical Galaxies ◽  
Dynamical Models

scholarly journals Surface brightness fluctuation distances for nearby dwarf elliptical galaxies

2001 ◽  
Vol 380 (1) ◽  
pp. 90-101 ◽  
Author(s):  
H. Jerjen ◽  
R. Rekola ◽  
L. Takalo ◽  
M. Coleman ◽  
M. Valtonen
Keyword(s):  
Surface Brightness ◽  
Elliptical Galaxies ◽  
Brightness Fluctuation ◽  
Dwarf Elliptical Galaxies

scholarly journals Kinematic Modelling of NGC 3379

1983 ◽  
Vol 100 ◽  
pp. 295-296
Author(s):  
Gary A. Mamon
Keyword(s):  
Surface Brightness ◽  
Elliptical Galaxies ◽  
Anisotropic Pressure ◽  
Velocity Anisotropy ◽  
Kinematic Modelling

Giant elliptical galaxies are now known to be supported by anisotropic pressure rather than by rotation (cf. Binney, 1981). This anisotropy can be derived from observable quantities for spherical systems as was shown by Binney and Mamon (1982) in their study of M87. We investigate here the velocity anisotropy of the El galaxy NGC 3379, a giant elliptical whose surface brightness constitutes an excellent illustration of the r1/4 law.

scholarly journals The Manifold of Elliptical Galaxies

1987 ◽  
Vol 127 ◽  
pp. 79-88
Author(s):  
S. Djorgovski
Keyword(s):  
Galaxy Formation ◽  
Surface Brightness ◽  
Velocity Dispersion ◽  
Elliptical Galaxies ◽  
Morphological Parameters ◽  
Strong Regularity ◽  
Fundamental Plane ◽  
Global Properties ◽  
Error Bars ◽  
Intrinsic Scatter

Global properties of elliptical galaxies, such as the luminosity, radius, projected velocity dispersion, projected luminosity density, etc., form a two-dimensional family. This “fundamental plane” of elliptical galaxies can be defined by the velocity dispersion and mean surface brightness, and its thickness is presently given by the measurement error-bars only. This is indicative of a strong regularity in the process of galaxy formation. However, all morphological parameters which describe the shape of the distribution of light, and reflect dynamical anisotropies of stars, are completely independent from each other, and independent of the fundamental plane. The M/L ratios show only a small intrinsic scatter in a luminosity range spanning some four orders of magnitude; this suggests a constant fraction of the dark matter contribution in elliptical galaxies.

scholarly journals Starburst Feedback in Local, Massive Galaxies

2006 ◽  
Vol 2 (S235) ◽  
pp. 280-283
Author(s):  
Crystal L. Martin
Keyword(s):  
Surface Brightness ◽  
Milky Way ◽  
Velocity Dispersion ◽  
Rotation Speed ◽  
Far Infrared ◽  
Elliptical Galaxies ◽  
Evolutionary Path ◽  
Sky Surveys ◽  
Massive Galaxies ◽  
Stellar Velocity

Major mergers of gas-rich galaxies, each comparable in mass to the Milky Way, are rare at the present epoch. These events were readily identifed, however, two decades ago in far-infrared sky surveys (Soifer et al. 1986, 1987). Removal of the dust enshrouding these starbursts was almost immediately proposed as an evolutionary path to quasar formation (Sanders 1988). Recent measurements of the stellar velocity dispersion, rotation speed, and stellar surface brightness profile of these mergers suggest ULIRGs are indeed progenitors of field elliptical galaxies (Genzel et al. 2001; Tacconi et al. 2002).

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