Results 21 to 30 of about 49,590 (221)

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

The Look-back Time Evolution of Far-Ultraviolet Flux from the Brightest Cluster Elliptical Galaxies at z < 0.2 [PDF]

open access: yes, 2007
We present the GALEX UV photometry of the elliptical galaxies in Abell clusters at moderate redshifts (z < 0.2) for the study of the look-back time evolution of the UV upturn phenomenon. The brightest elliptical galaxies (M_r < -22) in 12 remote clusters
Alessandro Boselli   +45 more
core   +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

The Hubble Sequence in Groups: The Birth of the Early-Type Galaxies [PDF]

open access: yes, 2010
The physical mechanisms and timescales that determine the morphological signatures and the quenching of star formation of typical (~L*) elliptical galaxies are not well understood.
Carollo, C. M., Feldmann, R., Mayer, L.
core   +2 more sources

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   +1 more source

Chaos and Elliptical Galaxies [PDF]

open access: yesCELESTIAL MECHANICS AND DYNAMICAL ASTRONOMY, 1996
uuencoded gziped PostScript, 12 pages including ...
openaire   +3 more sources

The colours of elliptical galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2006
13 pages, 8 figures, accepted by ...
Chang, R.   +6 more
openaire   +3 more sources

The Hβ Index and the Ages of Old Stellar Systems [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
The Hβ and some metal line indices, such as Mg2, Fe52, Fe53 of single-age and single-metallicity populations are computed based on the method of evolutionary population synthesis, with careful consideration of the variation of the horizontal-branch ...
Seok-Jin Yoon   +2 more
doaj  

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