Results 71 to 80 of about 662,658 (321)

THE ELLIPTICITIES OF GALAXIES IN GALAXY CLUSTERS OF DIFFERENT MORPHOLOGICAL TYPE

open access: yesOdessa Astronomical Publications, 2014
The distribution of galaxy ellipticities was analyzed for 207 rich PF galaxy clusters found in the Munster Red Sky Survey Galaxy Catalogue. Clusters with BM types from a comparison with the ACO catalogue were also classified on the new scheme.
E. A. Panko, P. Flin
doaj   +1 more source

The Carnegie-Irvine Galaxy Survey. X. Bulges in Stellar Mass–based Scaling Relations

open access: yesThe Astrophysical Journal Supplement Series, 2022
We measure optical colors for the bulges of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey and convert their previously available R -band structural parameters to stellar-mass parameters.
Hua Gao, Luis C. Ho, Zhao-Yu Li
doaj   +1 more source

Properties of Early-Type, Dry Galaxy Mergers and the Origin of Massive Elliptical Galaxies [PDF]

open access: yesAstrophys.J.636:L81-L84,2006, 2005
The luminosity dependence of kinematical and isophotal properties of elliptical galaxies is investigated using numerical simulations of galaxy merging, combined with semi-analytical models of hierarchical structure formation. Mergers of spiral galaxies as the only formation mechanism for elliptical galaxies can neither reproduce the kinematical and ...
arxiv   +1 more source

Mayall II = G1 in M31: Giant Globular Cluster or Core of a Dwarf Elliptical Galaxy? [PDF]

open access: yes, 2001
At the moment, only the anticorrelation of metallicity with age recently observed in ω Centauri suggests that this cluster enriched itself over a timescale of about 3 Gyr.
G. Meylan   +7 more
semanticscholar   +1 more source

On the distribution of galaxy ellipticity in clusters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
14 pages, 11 figures, Accepted for publication in ...
Rebecca Davies   +4 more
openaire   +5 more sources

ABSORPTION LINE GRADIENTS IN THE SPECTRUM OF AN ELLIPTICAL GALAXY NGC 5864A [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1999
The archival long-slit spectra, covering the wavelength range 4050 ~ 5150 Å, have been used to investigate the radial behavior of absorption line fea-tures (G4300, Fe4383, Ca4455, Fe4531, and Hβ) of an elliptical galaxy NGC 5846A.
Young-Jong Sohn   +2 more
doaj  

Tracing Galaxy Evolution by Their Present-Day Luminosity Function

open access: yesOpen Astronomy, 2011
Galaxy luminosity functions are derived for different morphological types and various colors of galaxies, to trace the evolutionary effects which a priori should be different for void and supercluster galaxies.
Tempel E.
doaj   +1 more source

Deep MOS Spectroscopy of NGC 1316 Globular Clusters

open access: yesGalaxies, 2017
The giant elliptical galaxy NGC 1316 is the brightest galaxy in the Fornax cluster, and displays a number of morphological features that might be interpreted as an intermediate age merger remanent (∼3 Gyr).
Leandro A. Sesto   +3 more
doaj   +1 more source

Binary Stellar Population Synthesis Study of Elliptical Galaxies [PDF]

open access: yesChin.J.Astron.Astrophys.6:669-679,2006, 2006
We determine relative stellar ages and metallicities mainly for about 80 elliptical galaxies in low and high density environments via the latest binary stellar population (BSP) synthesis model and test a latest hierarchical formation model of elliptical galaxies which adopted the new $\Lambda$CDM cosmology for the first time.
arxiv   +1 more source

Numerical modelling of Auriga's Wheel - a new ring galaxy

open access: yes, 2012
We model the formation of Auriga's Wheel - a recently discovered collisional ring galaxy. Auriga's Wheel has a number of interesting features including a bridge of stars linking the neighbouring elliptical to the ring galaxy, and evidence for components ...
Appleton   +56 more
core   +1 more source

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