Results 31 to 40 of about 12,545 (267)

The Origin Of Dwarf Spheroidal Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1983
Two dwarf spheroidal galaxies are associated with the Magellanic Stream with their major axes oriented along it. Evidence suggests that all the dwarf spheroidal satellites of the Galaxy belong to one or other of two streams of tidal debris. If this is true the orbits will give the first reliable determination of the total mass of the Galaxy out to 120 ...
openaire   +2 more sources

Zinc abundances in the Sculptor dwarf spheroidal galaxy, [PDF]

open access: yesAstronomy & Astrophysics, 2017
Accepted in A&A, 14 pages, 16 figures, 8 ...
Stefania Salvadori   +6 more
openaire   +6 more sources

Abundance Analysis of Stars at Large Radius in the Sextans Dwarf Spheroidal Galaxy

open access: yesThe Astrophysical Journal, 2023
We present the stellar parameters and chemical abundances of 30 elements for five stars located at large radii (3.5–10.7 times the half-light radius) in the Sextans dwarf spheroidal galaxy. We selected these stars using proper motions, radial velocities,
Ian U. Roederer   +7 more
doaj   +1 more source

Dwarf Spheroidal Satellite Formation in a Reionized Local Group [PDF]

open access: yes, 2014
Dwarf spheroidal satellite galaxies have emerged a powerful probe of small-scale dark matter clustering and of cosmic reionization. They exhibit structural and chemical continuity with dwarf irregular galaxies in the field and with spheroidal galaxies in
Bromm, Volker, Milosavljevic, Milos
core   +1 more source

About the evolution of Dwarf Spheroidal Galaxies [PDF]

open access: yesEAS Publications Series, 2007
6 pages, 2 figures, to appear in the Proceedings of the CRAL conference "Chemodynamics: from first stars to local galaxies", Lyon, France, 10-14 July ...
S. Recchi   +4 more
openaire   +3 more sources

The chemical evolution of the dwarf spheroidal galaxy Sextans [PDF]

open access: yesAstronomy & Astrophysics, 2020
We present our analysis of the FLAMES dataset targeting the central 25′ region of the Sextans dwarf spheroidal galaxy (dSph). This dataset is the third major part of the high-resolution spectroscopic section of the ESO large program 171.B-0588(A) obtained by the Dwarf galaxy Abundances and Radial-velocities Team.
Kim Venn   +15 more
openaire   +8 more sources

Dark Matter Halo Properties of the Galactic Dwarf Satellites: Implication for Chemo-dynamical Evolution of the Satellites and a Challenge to Lambda Cold Dark Matter

open access: yesThe Astrophysical Journal, 2023
Elucidating dark matter density profiles in Galactic dwarf satellites is essential to understanding not only the quintessence of dark matter, but also the evolution of the satellites themselves.
Kohei Hayashi   +3 more
doaj   +1 more source

The early days of the Sculptor dwarf spheroidal galaxy [PDF]

open access: yesAstronomy & Astrophysics, 2015
Replacement after language ...
Pierre North   +16 more
openaire   +8 more sources

Impact of Cosmic‐Ray Physics on Dark Matter Indirect Searches

open access: yesAdvances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
The quest for the elusive dark matter (DM) that permeates the Universe (and in general the search for signatures of physics beyond the Standard Model at astronomical scales) provides a unique opportunity and a tough challenge to the high energy astrophysics community.
Daniele Gaggero   +2 more
wiley   +1 more source

The elusive old population of the dwarf spheroidal galaxy Leo I [PDF]

open access: yes, 1999
We report the discovery of a significant old population in the dwarf spheroidal (dSph) galaxy Leo I as a result of a wide-area search with the ESO New Technology Telescope.
Bertelli G.   +12 more
core   +2 more sources

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