Results 31 to 40 of about 6,495 (171)
Phenomenological approach to the modelling of elliptical galaxies: The problem of the mass-to-light ratio [PDF]
In this paper the problem of the phenomenological modelling of elliptical galaxies using various available observational data is presented. Recently, Tortora, Cardona and Piedipalumbo (2007) suggested a double power law expression for the global ...
Samurović S.
doaj +1 more source
Kinematics and stellar disk modeling of lenticular galaxies [PDF]
18 pages, 6 figures, slightly shortened ...
Zasov, A. V. +4 more
openaire +2 more sources
Structure of the Galaxies in the NGC 80 Group [PDF]
BV-bands photometric data obtained at the 6-m telescope of the Special Astrophysical Observatory are used to analyze the structure of 13 large disk galaxies in the NGC 80 group.
A. Dressler +43 more
core +1 more source
Creating lenticular galaxies with major mergers [PDF]
Lenticular galaxies (S0s) represent the majority of early-type galaxies in the local Universe, but their formation channels are still poorly understood. While galaxy mergers are obvious pathways to suppress star formation and increase bulge sizes, the marked parallelism between spiral and lenticular galaxies (e.g.
Querejeta, M +10 more
openaire +2 more sources
Properties of stellar populations in isolated lenticular galaxies [PDF]
In this paper we present the results of long-slit spectral observations for a sample of isolated lenticular galaxies, made with the SCORPIO and SCORPIO-2 spectrographs of the 6-meter BTA telescope of the SAO RAS. By applying full spectral fitting technique using the stellar population evolutionary synthesis models, we have measured the radial profiles ...
Katkov, Ivan +2 more
openaire +2 more sources
Stellar counter-rotation in lenticular galaxy NGC 448 [PDF]
The counter-rotation phenomenon in disc galaxies directly indicates a complex galaxy assembly history which is crucial for our understanding of galaxy physics. Here we present the complex data analysis for a lenticular galaxy NGC 448, which has been recently suspected to host a counter-rotating stellar component.
Katkov, Ivan Yu. +4 more
openaire +2 more sources
Low dark matter content of the nearby early-type galaxy NGC 821 [PDF]
In this paper we analyze the kinematics and dynamics of the nearby early-type galaxy NGC 821 based on its globular clusters (GCs) and planetary nebulae (PNe).
Samurović S. +3 more
doaj +1 more source
Hot Gaseous Halos in Early Type Galaxies
The hot gas in early type galaxies (ETGs) plays a crucial role in their formation and evolution. As the hot gas is often extended to the outskirts beyond the optical size, the large scale structural features identified by Chandra (including cavities ...
Dong-Woo Kim
doaj +1 more source
Ages and abundances in large-scale stellar disks of nearby S0 galaxies [PDF]
By undertaking deep long-slit spectroscopy with the focal reducer SCORPIO of the Russian 6m telescope, we studied stellar population properties and their variation with radius in 15 nearby S0 galaxies sampling a wide range of luminosities and ...
Koposov, S. E. +3 more
core +2 more sources
Lenticular galaxies in the process of evolution [PDF]
AbstractWe present images of a number of lenticular galaxies which appear to be undergoing evolutionary processes such as ram-pressure stripping or gravitational interactions, or possess features indicative of some evolutionary process in the recent past, such as fossil spiral arms, a polar ring-like structure, or a warped disk with box-peanut bulge ...
S. N. Kemp +3 more
openaire +1 more source

