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Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling [PDF]

open access: yesAdvances in Astronomy, 2010
Galaxy surveys have shown that luminous galaxies are mainly distributed in large filaments and galaxy clusters. The remaining large volumes are virtually devoid of luminous galaxies.
Matthias Hoeft, Stefan Gottlöber
doaj   +4 more sources

Tidal Dwarf Galaxies and Missing Baryons [PDF]

open access: yesAdvances in Astronomy, 2010
Tidal dwarf galaxies form during the interaction, collision, or merger of massive spiral galaxies. They can resemble “normal” dwarf galaxies in terms of mass, size, and become dwarf satellites orbiting around their massive progenitor.
Frederic Bournaud
doaj   +4 more sources

Bose-Einstein Condensate Dark Matter Halos Confronted with Galactic Rotation Curves [PDF]

open access: yesAdvances in High Energy Physics, 2017
We present a comparative confrontation of both the Bose-Einstein Condensate (BEC) and the Navarro-Frenk-White (NFW) dark halo models with galactic rotation curves.
M. Dwornik   +3 more
doaj   +4 more sources

Dwarf Galaxies with the Highest Concentration Are Not Thicker than Ordinary Dwarf Galaxies

open access: yesThe Astrophysical Journal, 2023
The formation mechanism of high-concentration dwarf galaxies is still a mystery. We perform a comparative study of the intrinsic shape of nearby low-mass galaxies with different stellar concentration.
Lijun Chen   +7 more
doaj   +3 more sources

The nature of red dwarf galaxies [PDF]

open access: yesThe Astrophysical Journal, 2009
Using dark matter halos traced by galaxy groups selected from the Sloan Digital Sky Survey Data Release 4, we find that about 1/4 of the faint galaxies ($\rmag >-17.05$, hereafter dwarfs) that are the central galaxies in their own halo are not blue and ...
Adelman-McCarthy   +27 more
core   +8 more sources

Giant Halos in Dwarf Irregular Galaxies vs. Dwarf Elliptical Galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
We present a discovery of a giant stellar halo in NGC 6822, a dwarf irregular galaxy in the Local Group. This halo is mostly made of old red giants, showing striking features: 1) it is several times larger than the main body of the galaxy seen in the ...
Hwang, Narae, Lee, Myung Gyoon
core   +4 more sources

Globular Clusters in Dwarf Galaxies [PDF]

open access: yesThe Astronomical Journal, 2005
Data are presently available on the luminosities and half-light radii of 101 globular clusters associated with low-luminosity parent galaxies. The luminosity distribution of globulars embedded in dwarf galaxies having $M_{v} > -16$ is found to differ ...
Bergh, Sidney van den
core   +12 more sources

Tidal Dwarf Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1998
We review the observational evidences for tidal dwarf galaxies, a class of small galaxies formed out of the tidal debris of collisions between massive galaxies. Tidal dwarfs are found far from the interacting parent galaxies, associated with massive clouds of atomic hydrogen located at the tip of long tidal tails.
I. F. Mirabel   +2 more
openaire   +4 more sources

Dwarf‐Galaxy Cosmology [PDF]

open access: yesAdvances in Astronomy, 2010
This is the editorial paper which introduces the Special Issue on Dwarf-Galaxy Cosmology published in Advances in Astronomy. The issue contains fourteen review papers, and one original research article. All papers were peer-reviewed by a minimum of two referees. To read the Special Issue, please follow this link: http://www.hindawi.com/journals/aa/2010/
Ulrich Hopp   +3 more
openaire   +5 more sources

Dwarf elliptical galaxies [PDF]

open access: yesThe Astronomy and Astrophysics Review, 1994
63p, uuencoded compressed postscript, 2/8 figs included, A&A Review in press, request paper copies from ferguson@stsci.edu, STScI ...
Bruno Binggeli, Henry C. Ferguson
openaire   +3 more sources

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