Results 31 to 40 of about 5,149 (236)

Elliptical Galaxies with Shells [PDF]

open access: yesInternational Astronomical Union Colloquium, 1984
A considerable number of otherwise normal elliptical galaxies show sharp edged, low surface brightness concentric features, often at very large radii from the parent galaxy. Features like this are visible in some of the photographs presented by Arp (1966).
openaire   +2 more sources

The Outside‐In Formation of Elliptical Galaxies [PDF]

open access: yesThe Astrophysical Journal, 2006
15 pages, 10 figures, ApJ ...
Cristina Chiappini   +3 more
openaire   +4 more sources

Slowly Rotating Accretion Flow Around Supermassive Black Holes in Elliptical Galaxies: Case With Outflow

open access: yesThe Astrophysical Journal, 2023
Observational evidence and many numerical simulations show the existence of winds (i.e., uncollimated outflows) in the accretion systems of elliptical galaxy centers.
Razieh Ranjbar, Shahram Abbassi
doaj   +1 more source

A FUNDAMENTAL LINE FOR ELLIPTICAL GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2011
6 pages, 2 figures, 1 table. Accepted for publication in ApJL. Higher resolution figures available at http://www.bo.astro.it/~nair/Morphology/
Roberto Abraham   +3 more
openaire   +3 more sources

Fundamental Plane of Elliptical Galaxies in f(R) Gravity: The Role of Luminosity

open access: yesAtoms, 2018
The global properties of elliptical galaxies are connected through the so-called fundamental plane of ellipticals, which is an empirical relation between their parameters: effective radius, central velocity dispersion and mean surface brightness within ...
Vesna Borka Jovanović   +3 more
doaj   +1 more source

Triaxial Orbit-based Dynamical Modeling of Galaxies with Supermassive Black Holes and an Application to Massive Elliptical Galaxy NGC 1453

open access: yesThe Astrophysical Journal, 2022
Most stellar-dynamical determinations of the masses of nearby supermassive black holes (SMBHs) have been obtained with the orbit superposition technique under the assumption of axisymmetry.
Matthew E. Quenneville   +2 more
doaj   +1 more source

Elliptical Galaxy Dynamics [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 1999
97 Latex pages, 14 Postscript figures, uses aastex.
openaire   +3 more sources

Cold gas in elliptical galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
We explore the evolution of the cold gas (molecular and neutral hydrogen) of elliptical galaxies and merger remnants ordered into a time sequence on the basis of spectroscopic age estimates. We find that the fraction of cold gas in early merger remnants decreases significantly for ~1-2Gyr, but subsequent evolution toward evolved elliptical systems sees
Georgakakis, Antonis   +5 more
openaire   +5 more sources

The formation history of elliptical galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
We take advantage of the largest high-resolution simulation of cosmic structure growth ever carried out -- the Millennium Simulation of the concordance LambdaCDM cosmogony -- to study how the star formation histories, ages and metallicities of elliptical galaxies depend on environment and on stellar mass.
De Lucia, G.   +4 more
openaire   +4 more sources

Abundance ratios in dwarf elliptical galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
We determine abundance ratios of 37 dwarf ellipticals (dEs) in the nearby Virgo cluster. This sample is representative of the early-type population of galaxies in the absolute magnitude range -19.0 < Mr < -16.0. We analyze their absorption line-strength indices by means of index-index diagrams and scaling relations and use the stellar population ...
Jesús Falcón-Barroso   +21 more
openaire   +10 more sources

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