Results 61 to 70 of about 662,695 (314)
THE STELLAR HALOS OF MASSIVE ELLIPTICAL GALAXIES [PDF]
, 2012 We use the Mitchell Spectrograph (formerly VIRUS-P) on the McDonald Observatory 2.7 m Harlan J. Smith Telescope to search for the chemical signatures of massive elliptical galaxy assembly.
J. Greene +4 more
semanticscholar +1 more source
Elliptical Galaxy Dynamics [PDF]
Publications of the Astronomical Society of the Pacific, 1999 97 Latex pages, 14 Postscript figures, uses aastex.
openaire +3 more sources
Fundamental Plane of Elliptical Galaxies in f(R) Gravity: The Role of Luminosity
Atoms, 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
The Astrophysical Journal, 2023 With Cosmicflows- 4, distances are compiled for 55,877 galaxies gathered into 38,065 groups. Eight methodologies are employed, with the largest numbers coming from the correlations between the photometric and kinematic properties of spiral galaxies (TF ...
R. Brent Tully +16 more
doaj +1 more source
On the Origin of Isophotal Shapes in Elliptical Galaxies [PDF]
Mon.Not.Roy.Astron.Soc. 359 (2005) 1379-1385, 2004 Using semi-analytical models of galaxy formation, the origin of boxy and disky elliptical galaxies is investigated. We find that the simple scenario, motivated by N-body simulations, in which the isophotal shape is only dependent on the mass ratio of the last major merger, is not able to reproduce the observation that the fraction of boxy and disky ...
arxiv +1 more source
Dwarf elliptical galaxies as ancient tidal dwarf galaxies [PDF]
, 2012 The formation of tidal dwarf galaxies (TDGs) is triggered by the encounters of already existing galaxies. Their existence is predicted from numerical calculations of encountering galaxies and is also well documented with observations.
J. Dabringhausen, P. Kroupa
semanticscholar +1 more source
A FUNDAMENTAL LINE FOR ELLIPTICAL GALAXIES [PDF]
The 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
TESTING YUKAWA-LIKE POTENTIALS FROM f(R)-GRAVITY IN ELLIPTICAL GALAXIES [PDF]
, 2012 We present the first analysis of extended stellar kinematics of elliptical galaxies where a Yukawa-like correction to the Newtonian gravitational potential derived from f(R)-gravity is considered as an alternative to dark matter.
N. Napolitano +4 more
semanticscholar +1 more source
Cold gas in elliptical galaxies [PDF]
Monthly 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 DARK HALO—SPHEROID CONSPIRACY AND THE ORIGIN OF ELLIPTICAL GALAXIES [PDF]
, 2012 Dynamical modeling and strong-lensing data indicate that the total density profiles of early-type galaxies are close to isothermal, i.e., ρtot∝rγ with γ ≈ −2.
R. Remus +6 more
semanticscholar +1 more source