Results 31 to 40 of about 64,574 (197)

The Faintest Dwarf Galaxies [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2019
The lowest luminosity ([Formula: see text] L[Formula: see text]) Milky Way satellite galaxies represent the extreme lower limit of the galaxy luminosity function. These ultra-faint dwarfs are the oldest, most dark matter–dominated, most metal-poor, and least chemically evolved stellar systems known.
openaire   +3 more sources

The evolution of dwarf galaxies [PDF]

open access: yesAstrophysics and Space Science, 1988
We propose an evolutionary model for dwarf galaxies in Which initially metal-poor gas-rich dwarf irregular (dI) galaxies evolve through bursting Blue Compact Dwarf(BCD) stages and eventually fade from the BCD phase to become dwarf ellipticals (dE). During the bursting phase the surface brightness of the galaxy increases rapidly due to enhanced OB star ...
S. Phillips, Jonathan Ivor Davies
openaire   +3 more sources

The PAndAS View of the Andromeda Satellite System. IV. Global Properties

open access: yesThe Astrophysical Journal, 2023
We build a statistical framework to infer the global properties of the satellite system of the Andromeda galaxy (M31) from the properties of individual dwarf galaxies located in the Pan-Andromeda Archaelogical Survey (PAndAS) and the previously ...
Amandine Doliva-Dolinsky   +10 more
doaj   +1 more source

The Evolutionary Status of Isolated Dwarf Irregular Galaxies II. Star Formation Histories and Gas Depletion [PDF]

open access: yes, 2001
The results of UBV and H alpha imaging of a large sample of isolated dwarf irregular galaxies are interpreted in the context of composite stellar population models.
Arimoto N.   +12 more
core   +2 more sources

Substructure in Dwarf Galaxies [PDF]

open access: yesPublications of the Astronomical Society of Australia, 2004
AbstractRecent years have seen a series of large-scale photometric surveys with the aim of detecting substructure in nearby dwarf galaxies. Some of these objects display a varying distribution of each stellar population, reflecting their star formation histories.
openaire   +4 more sources

Local Group Dwarf Galaxies: Nature And Nurture [PDF]

open access: yes, 2011
We investigate the formation and evolution of dwarf galaxies in a high resolution, hydrodynamical cosmological simulation of a Milky Way sized halo and its environment.
Annibali   +63 more
core   +1 more source

THE METALLICITY OF VOID DWARF GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2014
The current Lambda CDM cosmological model predicts that galaxy evolution proceeds more slowly in lower density environments, suggesting that voids are a prime location to search for relatively pristine galaxies that are representative of the building blocks of early massive galaxies.
K. Kreckel   +4 more
openaire   +4 more sources

Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program

open access: yesThe Astrophysical Journal, 2023
We introduce the DESI LOW- Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method.
Elise Darragh-Ford   +41 more
doaj   +1 more source

Morphological transformation of dwarf galaxies in the Local Group [PDF]

open access: yes, 2015
In the Local Group there are three main types of dwarf galaxies: Dwarf Irregulars, Dwarf Spheroidals, and Dwarf Ellipticals. Intermediate/transitional types are present as well.
Carraro, Giovanni
core   +1 more source

From tidal dwarf galaxies to satellite galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2006
Accepted for publication in A&A. Shortened abstract below, full version in the paper.
Bournaud, Frédéric, Duc, Pierre-Alain
openaire   +5 more sources

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