Results 81 to 90 of about 12,147 (249)

Stellar Populations in the Local Group of Galaxies

open access: yes, 2005
The characteristics and properties of the stellar populations and evolutionary histories of Local Group galaxies are summarized and compared to predictions of cosmological models.
Grebel, Eva K.
core   +2 more sources

Pavo: Discovery of a Star-forming Dwarf Galaxy Just Outside the Local Group

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery of Pavo, a faint ( M _V = −10.0), star-forming, irregular, and extremely isolated dwarf galaxy at D ≈ 2 Mpc. Pavo was identified in Dark Energy Camera Legacy Survey imaging via a novel approach that combines low surface brightness
Michael G. Jones   +11 more
doaj   +1 more source

Rotationally Supported Virgo Cluster Dwarf Elliptical Galaxies: Stripped Dwarf Irregular Galaxies? [PDF]

open access: yesThe Astronomical Journal, 2004
New observations of 16 dwarf elliptical galaxies in the Virgo Cluster indicate that at least seven dEs have significant velocity gradients along their optical major axis, with typical rotation amplitudes of 20-30 km/s. Of the remaining nine galaxies in this sample, 6 have velocity gradients less than 20 km/s kpc^{-1} while the other 3 observations had ...
L. van Zee   +2 more
openaire   +3 more sources

Studying the Interstellar Medium of H II/BCD Galaxies Using IFU Spectroscopy

open access: yesAdvances in Astronomy, Volume 2013, Issue 1, 2013., 2013
We review the results from our studies, and previous published work, on the spatially resolved physical properties of a sample of H ii/BCD galaxies, as obtained mainly from integral‐field unit spectroscopy with Gemini/GMOS and VLT/VIMOS. We confirm that, within observational uncertainties, our sample galaxies show nearly spatially constant chemical ...
Patricio Lagos   +2 more
wiley   +1 more source

The HI column density distribution function in faint dwarf galaxies

open access: yes, 2012
We present the HI column density distribution function,\fnh, as measured from dwarf galaxies observed as part of the Faint Irregular Galaxy GMRT (FIGGS) survey.
Begum, Ayesha   +2 more
core   +1 more source

The star formation history of the Sculptor dwarf irregular galaxy [PDF]

open access: yesAstronomy & Astrophysics, 2012
A&A accepted; 10 pages, 9 ...
Andrew A. Cole, Sophia Lianou
openaire   +2 more sources

Workshop on the Magellanic Clouds and other Dwarf Galaxies [PDF]

open access: yes, 1998
The Workshop 'The Magellanic Clouds and Other Dwarf Galaxies' was held at the Physikzentrum Bad Honnef in January 1998. The proceedings comprise 79 contributions.
Braun, J M, Richtler, T
core  

Neutral Gas Distributions and Kinematics of Five Blue Compact Dwarf Galaxies [PDF]

open access: yes, 1998
We present the results of high spatial resolution HI observations of five intrinsically compact dwarf galaxies which are currently experiencing a strong burst of star formation.
Salzer, J. J.   +2 more
core   +2 more sources

A Luminous X-Ray Active Galactic Nucleus in the Dwarf–Dwarf Galaxy Merger RGG 66

open access: yesThe Astrophysical Journal
We present the discovery of a luminous X-ray active galactic nucleus (AGN) in the dwarf galaxy merger RGG 66. The black hole is predicted to have a mass of M _BH ∼ 10 ^5.4 M _⊙ and to be radiating close to its Eddington limit ( L _bol / L _Edd ∼ 0.75 ...
Seth J. Kimbrell, Amy E. Reines
doaj   +1 more source

What is the (Dark) Matter with Dwarf Galaxies?

open access: yes, 2010
We present cosmological hydrodynamical simulations of the formation of dwarf galaxies in a representative sample of haloes extracted from the Millennium-II Simulation.
Aarseth   +92 more
core   +1 more source

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