Equilibrium Figures inside the Dark-Matter Ring and the Shapes of Elliptical Galaxies
Open Astronomy, 2015 We solve the general problem of the theory of equilibrium figures and analyze two classes of liquid rotating gravitating figures residing inside a gravitating ring or torus.
Kondratyev B. P. +2 more
doaj +1 more source
Alignment of galaxies relative to their local environment in SDSS-DR8
, 2016 We study the alignment of galaxies relative to their local environment in SDSS-DR8 and, using these data, we discuss evolution scenarios for different types of galaxies. We defined a vector field of the direction of anisotropy of the local environment of
Einasto, M. +6 more
core +1 more source
On the relation between circular velocity and central velocity dispersion in high and low surface brightness galaxies [PDF]
, 2005 In order to investigate the correlation between the circular velocity Vc and the central velocity dispersion of the spheroidal component sigma_c, we analyzed these quantities for a sample of 40 high surface brightness disc galaxies (hereafter HSB), 8 ...
A. Pizzella +13 more
core +4 more sources
On the distribution of galaxy ellipticity in clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 14 pages, 11 figures, Accepted for publication in ...
Rebecca Davies +4 more
openaire +5 more sources
Resolving the Extended Stellar Halos of Nearby Galaxies: The Wide-Field PISCeS Survey
Galaxies, 2017 The wide-field Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) investigates the resolved stellar halos of two nearby galaxies (the spiral NGC 253 and the elliptical Centaurus A, D ∼ 4 Mpc) out to a galactocentric radius of 150 kpc ...
Denija Crnojević
doaj +1 more source
Influence of major mergers on the radio emission of elliptical galaxies
, 2012 We investigate the influence of major mergers on the radio emission of elliptical galaxies. We use a complete sample of close pairs, which contains 475 merging and 1828 non-merging paired elliptical galaxies of ...
Altschuler +37 more
core +1 more source
Searching for tidal tails - investigating galaxy harassment
, 2005 Galaxy harassment has been proposed as a physical process that morphologically transforms low surface density disc galaxies into dwarf elliptical galaxies in clusters.
Aboufadel +30 more
core +1 more source
The dust masses of powerful radio galaxies: clues to the triggering of their activity [PDF]
, 2014 We use deep Herschel Space Observatory observations of a 90% complete sample of 32 intermediate-redshift 2Jy radio galaxies (0.05 < z < 0.7) to estimate the dust masses of their host galaxies and thereby investigate the triggering mechanisms for their ...
Almeida, C. +7 more
core +3 more sources
Weak homology of elliptical galaxies [PDF]
Astronomy & Astrophysics, 2002 We start by studying a small set of objects characterized by photometric profiles that have been pointed out to deviate significantly from the standard R^{1/4} law. For these objects we confirm that a generic R^{1/n} law, with n a free parameter, can provide superior fits (the best-fit value of n can be lower than 2.5 or higher than 10), better than ...
Bertin, G., Ciotti, L., Del Principe, M.
openaire +4 more sources
Optical-Near Infrared Color Gradients of Elliptical Galaxies and Their Environmental Dependence
, 2005 We have studied the environmental effect on optical-NIR color gradients of 273 nearby elliptical galaxies. Color gradient is a good tool to study the evolutionary history of elliptical galaxies, since the steepness of the color gradient reflects merging ...
Im, Myungshin, Ko, Jongwan
core +2 more sources