Results 81 to 90 of about 1,735 (217)
Sulphur in the Sculptor dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2015 9 pages, 11 figures, 2 tables + 3 online tables, accepted in A& ...
Skúladóttir, Á. +6 more
openaire +3 more sources
A UNIVERSAL MASS PROFILE FOR DWARF SPHEROIDAL GALAXIES?
The Astrophysical Journal, 2009 Replacement provides corrections to values of half-light radii adopted for eight classical dSphs, including revised tables and figures (conclusions are unchanged).
Walker, Matthew G. +5 more
openaire +2 more sources
Assessment of Dark Matter Models Using Dark Matter Correlations across Dwarf Spheroidal Galaxies
Universe, 2022 The predicted size of dark matter substructures in kilo-parsec scales is model-dependent. Therefore, if the correlations between dark matter mass densities as a function of the distances between them are measured via observations, we can scrutinize dark ...
Ahmad Borzou
doaj +1 more source
Are Milky-Way dwarf-spheroidal galaxies dark-matter free? [PDF]
, 2019 International audienceWe have found that the high velocity dispersions of dwarf spheroidal galaxies (dSphs) can be well explained by Milky Way (MW) tidal shocks, which reproduce precisely the gravitational acceleration previously attributed to dark ...
Hammer, F. +6 more
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Exploring the Evolution of a Dwarf Spheroidal Galaxy with SPH Simulations. II. AGN Feedback
The Astrophysical JournalWe investigate active galactic nucleus (AGN) feedback from an intermediate-mass black hole at the center of a dwarf spheroidal galaxy, by performing isolated galaxy simulations using a modified version of the GADGET-3 code. We consider Leo II (PGC 34176)
Roberto Hazenfratz +3 more
doaj +1 more source
The Astronomical Journal, 2023 We present results from wide-field imaging of the resolved stellar populations of the dwarf spheroidal galaxies Cassiopeia III (And XXXII) and Perseus I (And XXXIII), two satellites in the outer stellar halo of the Andromeda galaxy (M31).
Katherine L. Rhode +10 more
doaj +1 more source
DELVE-DEEP Survey: The Faint Satellite System of NGC 55
The Astrophysical JournalWe report the first comprehensive census of the satellite dwarf galaxies around NGC 55 (2.1 Mpc) as a part of the DECam Local Volume Exploration DEEP (DELVE-DEEP) survey. NGC 55 is one of four isolated, Magellanic analogs in the Local Volume around which
Jonah Medoff +26 more
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Galaxias Enanas del Grupo Local
Momento, 2009 The satellite galaxies of the Milky Way are very important both for the studies of the formation and evolution of galaxies and for the research on the dark matter problem. In the present review paper some structural properties of the Local Group, as well
A Casallas Lagos +2 more
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Metallicity gradients in the Sagittarius dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2001 Metallicity gradients in the Sagittarius dwarf Galaxy (Sgr) are investigated by using infrared photometric data from the 2MASS survey. To search for metallicity effects, the giant branch in a field situated near the Center of the Sgr is compared to the giant branch in a field situated near its southern edge.
openaire +4 more sources
Mass Modelling of dwarf Spheroidal Galaxies [PDF]
, 2017 We study the origin and properties of unbound stars in the kinematic samples of dwarf spheroidal galaxies. For this purpose we have run a high resolution N-body simulation of a two-component dwarf galaxy orbiting in a Milky Way potential.
Prada, Francisco +5 more
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