Results 41 to 50 of about 6,720 (201)
One Piece at a Time—Adding to the Puzzle of S0 Formation
Understanding the origin of galaxies remains a topic of debate in the current astronomy. In this work, we have focused on lenticular (S0) galaxies located in low-density environments, using their associated globular cluster (GC) systems as a tool ...
Carlos Escudero +2 more
doaj +1 more source
Rotation of the large lenticular galaxy NGC 612* [PDF]
The radio galaxy NGC 612 (≡ PKS 0131 – 36) has been studied spectroscopically and the velocity field measured in emission lines of [O II], [O III] and Hα. A rotation curve has been determined to a radius of 40 kpc (H=50kms−1Mpc−1). The rotation curve of this SO galaxy is essentially flat, as is found for many late-type systems, with an amplitude of ...
GOSS, WM +3 more
openaire +2 more sources
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
Extremely alpha-Enriched Globular Clusters in Early-Type Galaxies: A Step towards the Dawn of Stellar Populations? [PDF]
We compare [alpha/Fe], metallicity, and age distributions of globular clusters in elliptical, lenticular, and spiral galaxies, which we derive from Lick line index measurements.
Markus Kissler‐Patig +3 more
core +2 more sources
Kinematics and stellar disk modeling of lenticular galaxies [PDF]
18 pages, 6 figures, slightly shortened ...
Zasov, A. V. +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
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
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
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
Local elliptical galaxies: Some aspects of theory vs. observations [PDF]
In this paper we analyze on, the sample of the local elliptical galaxies, some predictions of various cosmological theories. We start with the sample of ellipticals described in Samurović (2007b) and confront the established concentration parameters and ...
Samurović S.
doaj +1 more source

