Results 41 to 50 of about 3,892 (249)

Dwarf and Low Surface Brightness Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1996
The terms ‘dwarf’ and ‘low surface brightness’ are commonly used to mean a variety of different things, and are sometimes used interchangeably. It is thus necessary to explicitly quantify the definitions which are adopted. Here I shall limit the discussion to field galaxies which are [exponential] disks characterized by a scale size h and central ...
openaire   +4 more sources

Massive Disks in Low Surface Brightness Galaxies [PDF]

open access: yesAstrophysics and Space Science, 2003
LaTex, 4 pages, 1 figure, to appear in: The Evolution of Galaxies. III-From simple Approaches to Self-Consistent Models, G. Hensler, G. Stasinska, S. Harfst, P. Kroupa, Chr.
openaire   +2 more sources

Dark Matter Dogma: A Study of 214 Galaxies

open access: yesGalaxies, 2020
The aim of this paper is to test the need for non-baryonic dark matter in the context of galactic rotation and the apparent difference between distributions of galactic mass and luminosity.
Alan Sipols, Alex Pavlovich
doaj   +1 more source

The connection between surface brightness and satellite systems for central galaxies through IllustrisTNG

open access: yesAstronomy & Astrophysics
We analysed different properties of central low-surface-brightness galaxies (LSBGs) and their satellite systems using the simulation TNG100 in order to deepen our understanding of the formation mechanism of LSBGs in a Λ cold dark matter cosmology.
Rodriguez Silvio   +9 more
doaj   +1 more source

Low surface brightness galaxies in [PDF]

open access: yes, 2021
Ultra diffuse galaxies (UDGs) are a type of large low surface brightness (LSB) galaxies with particularly large effective radii (reff >  1.5 kpc) that are now routinely studied in the Local (z   1.0), even though cosmological surface brightness dimming ...
Muzzin, Adam   +9 more
core   +1 more source

The Contribution of Low Surface Brightness Galaxies to Faint Galaxy Counts

open access: yesThe Astrophysical Journal, 1995
Low Surface-Brightness (LSB) galaxies are severely underrepresented in surveys used to define the local luminosity function (LF), but could it in principle be detected in deep surveys. To explore the possible contribution of such objects to faint galaxy counts, we construct catalogs of simulated non-evolving galaxies drawn from a multivariate ...
Ferguson, Henry C., McGaugh, Stacy S.
openaire   +2 more sources

Beyond Ultra-diffuse Galaxies. I. Mass–Size Outliers among the Satellites of Milky Way Analogs

open access: yesThe Astrophysical Journal, 2023
Large diffuse galaxies are hard to find, but understanding the environments where they live, their numbers, and ultimately their origins, is of intense interest and importance for galaxy formation and evolution. Using Subaru’s Hyper Suprime-Cam Strategic
Jiaxuan Li   +12 more
doaj   +1 more source

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó   +9 more
wiley   +1 more source

Secondary evolution of galaxies investigated by N-body simulations [PDF]

open access: yes, 2008
In the ΛCDM cosmology, merging is one of the most important physical processes that drives the formation and evolution of galaxies. In the present work, we use N-body techniques to investigate some of currently open issues related to the formation and ...
Coppola, Giuseppina
core  

Evolution of bulgeless low surface brightness galaxies [PDF]

open access: yes, 2015
International audienceBased on the Sloan Digital Sky Survey DR 7, we investigate the environment, morphology, and stellar population of bulgeless low surface-brightness (LSB) galaxies in a volume-limited sample with redshift ranging from 0.024 to 0.04 ...
Yang, Yanbin   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy