Results 161 to 170 of about 517,834 (312)

Stellar Population Synthesis of the Elliptical Galaxy NGC 4649 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2001
We investigated population of the elliptical galaxy NGC 4649 using the spectral synthesis technique based on the linear program in the spectral regions between 3160Å to 10800Å. We used the spectral data of stars obtained by Gunn & Stryker (1983), and the
Mun-Suk Chun   +2 more
doaj  

A New Dynamical Parameter for the Study of Sticky Orbits in a 3D Galactic Model

open access: yesOpen Astronomy, 2011
A 3D dynamical model is used to study the motion in the central parts of an elliptical galaxy, hosting a massive and dense nucleus. Our aim is to investigate the regular or chaotic character of the motion, with emphasis in the different chaotic ...
Zotos Euaggelos E.
doaj   +1 more source

Settling of Gas Disks in Elliptical Galaxies [PDF]

open access: bronze, 1987
T. Y. Steiman-Cameron, R.H. Durisenr
openalex   +1 more source

What are we missing in elliptical galaxies ? [PDF]

open access: green, 2014
J. R. Mould   +4 more
openalex   +1 more source

Evolution of Massive Red Galaxies in Clusters from z = 1.0 to z = 0.3

open access: yesThe Astronomical Journal
A critical issue in studying the evolution of galaxy clusters is to find ways that enable meaningful comparisons of clusters observed at different redshifts, as well as in various stages of their growth.
Yen-Ting Lin   +4 more
doaj   +1 more source

No Evidence of a Dichotomy in the Elliptical Galaxy Population

open access: yesThe Astrophysical Journal
The advent of large integral field spectroscopic surveys has found that elliptical galaxies (EGs) can be divided into two classes: the fast rotators (whose kinematics are dominated by rotation) and the slow rotators (which exhibit slow or no rotation ...
Rogério Monteiro-Oliveira   +5 more
doaj   +1 more source

The formation history of elliptical galaxies [PDF]

open access: green, 2006
G. De Lucia   +4 more
openalex   +1 more source

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