Results 81 to 90 of about 33,724 (268)
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
Whiting 1: Confirmation of its accretion by the Milky Way
EPJ Web of Conferences, 2017 We investigate the association of Whiting 1 with the Sagittarius tidal stream by obtaining radial velocities for a sample of 101 stars observed with VIMOS.
Carballo-Bello Julio A. +6 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 HI content of the recently discovered field dwarf galaxy APPLES1
, 2005 We present observations in a search for neutral hydrogen associated with the recently detected field dwarf galaxy APPLES1, performed with the Parkes radiotelescope.
A. Pasquali +25 more
core +1 more source
Chemical Composition of Extremely Metal-Poor Stars in the Sextans Dwarf Spheroidal Galaxy [PDF]
, 2009 Chemical abundances of six extremely metal-poor ([Fe/H]
Aoki, W. +17 more
core +5 more sources
Why Are There Dwarf Spheroidal Galaxies?
The Astrophysical Journal, 2001 4 ApJ pages, submitted to ApJ ...
openaire +4 more sources
Chemical Feature of Eu abundance in the Draco dwarf spheroidal galaxy [PDF]
, 2015 Chemical abundance of r-process elements in nearby dwarf spheroidal (dSph) galaxies is a powerful tool to probe the site of r-process since their small-mass scale can sort out individual events producing r-process elements.
T. Tsujimoto +3 more
semanticscholar +1 more source
The Astrophysical JournalA fundamental question regarding the evolution of dwarf spheroidal galaxies is the identification of the key physical mechanisms responsible for gas depletion.
Roberto Hazenfratz +3 more
doaj +1 more source
Maximally self-interacting dark matter: models and predictions
Journal of High Energy Physics, 2020 We study self-interacting dark matter (SIDM) scenarios, where the s-wave self-scattering cross section almost saturates the Unitarity bound. Such self-scattering cross sections are singly parameterized by the dark matter mass, and are featured by strong ...
Ayuki Kamada +2 more
doaj +1 more source