Results 101 to 110 of about 170,345 (283)
Properties of the Photometric Components of Lenticular Galaxies
Advances in Astronomy, Volume 2012, Issue 1, 2012., 2012 After almost one century since their definition, the origin of lenticular galaxies is still a matter of debate. Several formation processes have been proposed in order to explain the wide variety of their observational properties. These properties could indicate that the class of lenticulars is a family formed by galaxies with different formations and ...
J. Alfonso L. Aguerri, Elias Brinks
wiley +1 more source
Carbon and nitrogen abundances of individual stars in the Sculptor dwarf spheroidal galaxy [PDF]
, 2015 We present [C/Fe] and [N/Fe] abundance ratios and CH(lambda 4300) and S(lambda 3883) index measurements for 94 red giant branch (RGB) stars in the Sculptor dwarf spheroidal galaxy from VLT/VIMOS MOS observations at a resolving power R = 1150 at 4020 A ...
C. Lardo +9 more
semanticscholar +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
The Astrophysical Journal, 2023 Stellar streams in the Galactic halo are useful probes of the assembly of galaxies like the Milky Way. Many tidal stellar streams that have been found in recent years are accompanied by a known progenitor globular cluster or dwarf galaxy.
Keith Hawkins +10 more
doaj +1 more source
The Chemical Composition of Local Group Dwarf Spheroidals [PDF]
, 2005 I will review the progress of VLT spectroscopy of large numbers of individual stars in nearby dwarf spheroidal galaxies. This spectroscopy has allowed us to obtain detailed insights into the chemical and dynamical properties of the resolved stellar population in these nearby systems.
arxiv +1 more source
Why Are There Dwarf Spheroidal Galaxies?
The Astrophysical Journal, 2001 4 ApJ pages, submitted to ApJ ...
openaire +4 more sources
On the Stellar Content of the Carina Dwarf Spheroidal Galaxy1 [PDF]
Publications of the Astronomical Society of the Pacific, 2010 Accepted on PASP, 12 pages, 6 ...
Giuseppe Bono +24 more
openaire +9 more sources
STELLAR SUBSTRUCTURES AROUND THE HERCULES DWARF SPHEROIDAL GALAXY [PDF]
, 2015 We present deep g and i band Dark Energy Camera stellar photometry of the Hercules Milky Way satellite galaxy, and its surrounding field, out to a radial distance of 5.4 times the tidal radius.
T. A. Roderick +3 more
semanticscholar +1 more source
Dark Matter Gamma-ray searches in Galaxy Clusters: Status and prospects [PDF]
EPJ Web of ConferencesGalaxy clusters are the largest structures in the Universe, being dark matter (DM) dominated objects. For DM decay, they yield the highest expected fluxes with respect to other prime targets.
Pérez-Romero Judit
doaj +1 more source
THE HOT DARK MATTER MODEL: FURTHER INVESTIGATION
Odessa Astronomical Publications, 2020 e outer region with the dominant hot dark matter (the parabolic orbit of the test particle). It was assumed that the hot dark matter consists of hypothetical Planck neutrinos arising in the decay of the protons at the Planck scale.
D. L. Khokhlov
doaj +1 more source