Results 51 to 60 of about 334,147 (281)

High Lyman Continuum Escape Fraction in a Lensed Young Compact Dwarf Galaxy at z = 2.5 [PDF]

open access: yes, 2017
We present the HST WFC3/F275W UV imaging observations of A2218-Flanking, a lensed compact dwarf galaxy at redshift . The stellar mass of A2218-Flanking is and SFR is yr−1 after correcting the magnification.
F. Bian   +4 more
semanticscholar   +1 more source

An r-process Enhanced Star in the Dwarf Galaxy Tucana III [PDF]

open access: yes, 2017
Chemically peculiar stars in dwarf galaxies provide a window for exploring the birth environment of stars with varying chemical enrichment. We present a chemical abundance analysis of the brightest star in the newly discovered ultra-faint dwarf galaxy ...
T. Hansen   +53 more
semanticscholar   +1 more source

Eight per cent leakage of Lyman continuum photons from a compact, star-forming dwarf galaxy [PDF]

open access: yesNature, 2016
One of the key questions in observational cosmology is the identification of the sources responsible for ionization of the Universe after the cosmic ‘Dark Ages’, when the baryonic matter was neutral.
Y. Izotov   +7 more
semanticscholar   +1 more source

Dwarf Spheroidal Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1994
Dwarf Spheroidal (dSph) galaxies are the faintest baryonic systems recognized as galaxies. Understanding the structure and stellar populations of these systems is critical for the modelling of their formation and evolution, and by extension, for understanding the general problem of galaxy formation ...
openaire   +2 more sources

Dwarfs in Void Environments (DIVE): The Stellar Kinematics of Void Dwarf Galaxies Using the Keck Cosmic Web Imager

open access: yesThe Astrophysical Journal, 2023
Dwarf galaxies located in extremely underdense cosmic voids are excellent test beds for disentangling the effects of large-scale environments on galaxy formation and evolution. We present the first results of the Dwarfs in Void Environments Survey, which
Mithi A. C. de los Reyes   +5 more
doaj   +1 more source

Magnetised winds in dwarf galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2010
20 pages, 12 figures.
Romain Teyssier   +3 more
openaire   +3 more sources

Ultradiffuse galaxies: the high-spin tail of the abundant dwarf galaxy population [PDF]

open access: yes, 2016
Recent observations have revealed the existence of an abundant population of faint, low surface brightness (SB) galaxies, which appear to be numerous and ubiquitous in nearby galaxy clusters, including the Virgo, Coma and Fornax clusters.
N. Amorisco, Abraham Loeb
semanticscholar   +1 more source

Dwarf Galaxies in the Local Volume [PDF]

open access: yesAstrophysical Bulletin, 2018
AbstractThe Updated Nearby Galaxy Catalog (=UNGC) of 1047 Local Volume (=LV) galaxies, situated within a distance of 11 Mpc, contains 870 dwarfs, i.e. 5/6 of the sample. Almost 40% of them have accurate distances measured with Hubble Space Telescope. Most of the LV dwarfs have been observed in HI and Hα emission lines, as well in far-ultraviolet with ...
I. D. Karachentsev, Elena I. Kaisina
openaire   +4 more sources

THE NATURE OF RED DWARF GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2009
9 pages, 8 figures, Accepted for publication in ...
Wang, Y   +7 more
openaire   +5 more sources

A Comparison of Outflow Properties in AGN Dwarfs versus Star-forming Dwarfs

open access: yesThe Astrophysical Journal, 2023
Feedback likely plays a crucial role in resolving discrepancies between observations and theoretical predictions of dwarf galaxy properties. Stellar feedback was once believed to be sufficient to explain these discrepancies, but it has thus far failed to
Archana Aravindan   +7 more
doaj   +1 more source

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