Results 101 to 110 of about 53,348 (269)

Structural properties of dwarf ellipticals and the connection with (ordinary) elliptical galaxies [PDF]

Proceedings of the International Astronomical Union, 2005
This article reviews the popular reasons for the belief that dwarf elliptical galaxies and (ordinary) elliptical galaxies are distinct and separate species. They include: light-profile shape (or similarly image concentration); the magnitude-central surface brightness diagram; the magnitude-effective surface brightness diagram (or similarly the ...
openaire   +3 more sources

A New Empirical Model for the Structural Analysis of Early-type Galaxies and a Critical Review of the Nuker Model

, 2003
The Nuker law was designed to match the inner few (~3-10) arcseconds of predominantly nearby (< 30 Mpc) early-type galaxy light-profiles; it was never intended to describe an entire profile.
A. Asensio Ramos, Alister W. Graham, Andredakis Y. C., Binggeli B., Caon N., Caon N., D'Onofrio M., Davies J. I., de Vaucouleurs G., I. Trujillo, James P. A., Marquez I., Peter Erwin, Young C. K., Zhao H., Zhao H.   +15 more
core   +1 more source

X-ray Emission from the Interstellar and Circumgalactic Medium of Elliptical Galaxies based on MACER simulations [PDF]

, 2022
Aditi Vijayan, Bocheng Zhu, Miao Li, Feng Yuan, Luis C. Ho   +4 more
openalex   +1 more source

Core Formation by Binary Scouring and Gravitational Wave Recoil in Massive Elliptical Galaxies

The Astrophysical Journal
Scouring by supermassive black hole (SMBH) binaries is the most accepted mechanism for the formation of the cores seen in giant elliptical galaxies. However, an additional mechanism is required to explain the largest observed cores.
Nader Khonji, Alessia Gualandris, Justin I. Read, Walter Dehnen   +3 more
doaj   +1 more source

THE ELLIPTICITIES OF GALAXIES IN GALAXY CLUSTERS OF DIFFERENT MORPHOLOGICAL TYPE

Odessa 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

Star Formation Histories of Dwarf Spheroidal and Dwarf Elliptical Galaxies in the Local Universe [PDF]

, 2023
Mi-Ra Seo, H. B. Ann
openalex   +1 more source

A simple model of spiral galaxies from geometric optics

AIP Advances
We propose a simple model of spiral galaxies based on the interference of gravitational waves. The interference is deduced from geometric optics analysis of the refractive index profiles that mimic the behavior of gravitational potentials −1/r and r2. We
Bogdan Szafraniec, James N. Blake
doaj   +1 more source

The SLUGGS Survey: Understanding Lenticular Galaxy Formation via Extended Stellar Kinematics

Galaxies, 2017
We present the latest published and preliminary results from the SLUGGS Survey discussing the formation of lenticular galaxies through analysis of their kinematics.
Sabine Bellstedt
doaj   +1 more source

Stellar populations of seven early-type dwarf galaxies and their nuclei

, 2009
Dwarf galaxies are the numerically dominating population in the dense regions of the universe. Although they seem to be simple systems at first view, the stellar populations of dwarf elliptical galaxies (dEs) might be fairly complex. Nucleated dEs are of
Babul, Bothun, Bruzual, Lisker, Lisker, Lisker, Lisker, Mateo, Michielsen, Oh, Poggianti, Silk, Van den Bergh, van Zee   +13 more
core   +1 more source

The Relation Between Galaxy Morphology and Environment in the Local Universe: An RC3-SDSS Picture

, 2011
We present an analysis of the z ~ 0 morphology-environment relation for 911 bright (M_B < -19) galaxies, matching classical RC3 morphologies to the SDSS-based group catalog of Yang et al.
Adelman-McCarthy, Baldi, Becker, Bekki, Bell, Bernardi, Blanton, Blanton, Blanton, Bower, Brown, Bundy, Burstein, Buta, Cavagnolo, Cavagnolo, Christlein, Chung, Cox, D'Onofrio, David J. Wilman, de la Rosa, de Vaucouleurs, de Vaucouleurs, Desai, Donahue, Dong, Dressler, Elmegreen, Eskridge, Fasano, Fukugita, Genzel, Gnedin, Granato, Hicks, Hogg, Hopkins, Hopkins, Hopkins, Hopkins, Häring, Just, Kaiser, Kawata, Kewley, Kormendy, Laurikainen, Magorrian, Marconi, Marinova, McCarthy, McNamara, Menéndez-Delmestre, Moore, Moran, Nair, Nair, Nair, Nesci, Noguchi, Nulsen, Peter Erwin, Poggianti, Poggianti, Postman, Rines, Salo, Schawinski, Schlegel, Sellwood, Smith, Springel, Strauss, Sun, Thomas, van Dokkum, von der Linden, Weinmann, West, Wilman, Yang   +81 more
core   +1 more source