Results 41 to 50 of about 209,885 (223)

Long Period Variables in Local Group Dwarf Galaxies [PDF]

open access: yes, 2006
In this work the results are presented of an extensive search for Long Period Variables stars (LPVs) in a sample of Local Group irregular dwarf galaxies.
Snigula, Jan
core   +1 more source

Two Candidates for Dual AGN in Dwarf-dwarf Galaxy Mergers

open access: yesThe Astrophysical Journal, 2023
Dual active galactic nuclei (DAGN) are important for understanding galaxy-merger-triggered fueling of black holes and the hierarchical growth of structures.
Marko Mićić   +3 more
doaj   +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   +4 more sources

Evolution of dwarf galaxies: a dynamical perspective [PDF]

open access: yesAstronomy & Astrophysics, 2014
For a rotating galaxy, the inner circular-velocity gradient d_{R}V(0) provides a direct estimate of the central dynamical mass density, including gas, stars, and dark matter. We consider 60 low-mass galaxies with high-quality HI and/or stellar rotation curves (including starbursting dwarfs, irregulars, and spheroidals), and estimate d_{R}V(0) as V(R_d)/
Federico Lelli   +2 more
openaire   +4 more sources

The cores of dwarf galaxy haloes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1996
We use N-body simulations to examine the effects of mass outflows on the density profiles of cold dark matter (CDM) halos surrounding dwarf galaxies. In particular, we investigate the consequences of supernova-driven winds that expel a large fraction of the baryonic component from a dwarf galaxy disk after a vigorous episode of star formation.
Navarro, Julio F.   +2 more
openaire   +2 more sources

Dwarf spheroidal galaxies: Keystones of galaxy evolution [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 1994
Dwarf spheroidal galaxies are the most insignificant extragalactic stellar systems in terms of their visibility, but potentially very significant in terms of their role in the formation and evolution of much more luminous galaxies. We discuss the present observational data and their implications for theories of the formation and evolution of both dwarf
Gallagher III, John S.   +1 more
openaire   +2 more sources

On the dynamics of the Sagittarius dwarf galaxy [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1995
We use numerical simulations to test the feasibility of the suggestion by Ibata et al. (1994) that the excess population of stars which they discovered in the Sagittarius region may be the disrupted remains of a dwarf spheroidal galaxy. We find that a Fornax-like model for the pre-disruption system can indeed reproduce the data.
Velazquez, H., White, S. D. M.
openaire   +2 more sources

Sagittarius: the nearest dwarf galaxy [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1995
MNRAS in press, 22pp uuencoded PS file, 26 printed figures available on request from gil@ast.cam.ac ...
Ibata, Rodrigo   +2 more
openaire   +2 more sources

Near IR imaging of Centaurus group dwarf elliptical galaxies

open access: yes, 2016
Detailed studies of dwarf galaxies in the Local Group have revealed an amazing diversity in their star formation histories. Young and intermediate-age stellar populations are observed in some gas-poor dwarf ellipticals, like Fornax and Carina, where ...
Zoccali, M   +4 more
core   +1 more source

Photoionization and the formation of dwarf galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1996
compressed postscript, 5 pages including 4 embedded figures.
Quinn, Thomas   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy