Results 121 to 130 of about 52,299 (245)

Dwarf elliptical galaxies

open access: yesThe Astrophysical Journal, 1983
We propose that dwarf elliptical galaxies are the bound remnants of more massive stellar systems, such as a parent galaxy which has lost more than half its mass in gas ejection during a burst of star formation, or an unbound tidal debris produced during the interaction of two giant galaxies.
P. Carnevali, H. Gerola, E. E. Salpeter
openaire   +2 more sources

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  

Absorption Line Gradients of an Elliptical Galaxy NGC 5322 [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1999
Archival long-slit spectra, covering the wavelength range 4050Å - 5150Å, have been used to investigate the radial behavior of absorption line features (G4300, Fe4383, Ca4455, Fe44531, Fe4668, and Hα) of an eliptical galaxy NGC 5322.
Young-Jong Sohn   +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

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

Ionized gas in the nuclei of elliptical, so, spiral, and irregular galaxies [PDF]

open access: yes
Ionized gas in elliptical, SO, spiral, and irregular galaxy ...
Burbidge, E. M., Burbidge, G. R.
core   +1 more source

HI in elliptical galaxies

open access: yes, 2002
Neutral hydrogen is an important component of the interstellar medium in elliptical galaxies as well as a potentially valuable mass tracer. Until recently, HI surveys of early-type galaxies have been sparse and inhomogeneous but this has changed with the advent of the HI Parkes All-Sky Survey (HIPASS; Barnes et al. 2001). We discuss HIPASS observations
Sadler, Elaine M.   +2 more
openaire   +2 more sources

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