Results 81 to 90 of about 13,205 (261)
Luminosity-Diameter Relations for Globular Clusters and Dwarf Spheroidal Galaxies
, 2008 It is shown that globular clusters and the dwarf spheroidal companions of the Galaxy have a different distribution of flattening values, and appear to occupy adjacent regions of the M_v versus log R_h plane that can be separated by what will be referred ...
Belokurov +16 more
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The dwarf spheroidal galaxy Andromeda I
The Astrophysical Journal, 1990 Images of Andromeda I in the visual and near-infrared show a giant branch characteristic of galactic globular clusters of intermediate metallicity. The distance of the galaxy is estimated from the tip of the giant branch to be 790 + or - 60 kpc. The physical dimensions and luminosity are similar to those of the dwarf spheroidal in Sculptor. There is no
Jeremy Mould, Jerome Kristian
openaire +1 more source
Zinc abundances in the Sculptor dwarf spheroidal galaxy, [PDF]
Astronomy & Astrophysics, 2017 From ESO VLT/FLAMES/GIRAFFE spectra, abundance measurements of Zn have been made in ≈100 individual red giant branch (RGB) stars in the Sculptor dwarf spheroidal galaxy. This is the largest sample of individual Zn abundance measurements within a stellar system beyond the Milky Way.
Skuladottir, A. +4 more
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Revealing the Structure and Internal Rotation of the Sagittarius Dwarf Spheroidal Galaxy with Gaia and Machine Learning [PDF]
, 2021 Andrés del Pino +5 more
openalex +1 more source
, 2007 Radial velocity dispersion in spheroidal and elliptical galaxies, as a function of radial distance from the center of the galaxy, has been derived from Cosmological Special Relativity.
F.J. Oliveira +7 more
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Star-Forming Regions in Dwarf Galaxies of the Local Volume [PDF]
, 2013 We present the H-alpha flux measurements for 44 nearby dwarf galaxies, derived from the observations at the 6-m BTA telescope. H-alpha fluxes were used to determine the rate of integral star formation of galaxies, SFR. For the observed galaxies the value
Kaisin, S. S., Karachentsev, I. D
core +1 more source
Dwarf Spheroidal Galaxies and Globular Clusters [PDF]
Symposium - International Astronomical Union, 1988 Recent observational results for dwarf spheroidal galaxies are reviewed and discussed. In particular, the differences in stellar populations between dwarf spheroidal galaxies and globular clusters are highlighted. It seems most probable that the origin and evolution of dwarf spheroidal galaxies was very different from that of globular clusters.
openaire +1 more source
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
Late-time dark matter oscillations and the core-cusp problem
Journal of High Energy Physics, 2021 The core-cusp problem persists as an unresolved tension between the pre- dictions of ΛCDM cosmology and observations of dark matter (DM) profiles in dwarf spheroidal and other galaxies.
James M. Cline +3 more
doaj +1 more source
The elusive old population of the dwarf spheroidal galaxy Leo I [PDF]
, 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
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