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
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The internal kinematics of dwarf spheroidal galaxies [PDF]
EAS Publications Series, 2006 8 pages, 5 figs. Invited review in Proceedings of XXIst IAP Colloquium, "Mass Profiles & Shapes of Cosmological Structures" (Paris, 4-9 July 2005), eds G.A. Mamon, F. Combes, C. Deffayet, B. Fort (Paris: EDP Sciences)
Wilkinson, M. I. +7 more
openaire +2 more sources
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 usage of Stromgren photometry in studies of Local Group Dwarf Spheroidal Galaxies - Application to Draco: a new catalogue of Draco members and a study of the metallicity distribution function and radial gradients [PDF]
, 2006 In this paper we demonstrate how Stromgren uvby photometry can be efficiently used to: 1. Identify red giant branch stars that are members in a dwarf spheroidal galaxy. 2.
A. Ardeberg +62 more
core +2 more sources
Gravitational tides and dwarf spheroidal galaxies [PDF]
Astronomy & Astrophysics, 2014 The effect of the local environment on the evolution of dwarf spheroidal galaxies is poorly understood. We have undertaken a suite of simulations to investigate the tidal impact of the Milky Way on the chemodynamical evolution of dwarf spheroidals that resemble present day classical dwarfs using the SPH code GEAR.
Nichols, Matthew +2 more
openaire +4 more sources
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
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
An Observational Limit on the Dwarf Galaxy Population of the Local Group [PDF]
, 2006 We present the results of an all-sky, deep optical survey for faint Local Group dwarf galaxies. Candidate objects were selected from the second Palomar survey (POSS-II) and ESO/SRC survey plates and follow-up observations performed to determine whether ...
Alan B. Whiting +10 more
core +2 more sources
Implications of elemental abundances in dwarf spheroidal galaxies [PDF]
Astronomy & Astrophysics, 2006 Unusual elemental abundance patterns observed for stars belonging to nearby dwarf spheroidal (dSph) galaxies are discussed. Analysis of the [alpha/H] vs. [Fe/H] diagrams where alpha represents Mg or average of alpha-elements reveals that Fe from Type Ia supernovae (SNe Ia) does not contribute to the stellar abundances in the dSph galaxies where the ...
openaire +2 more sources
STELLAR KINEMATICS OF THE ANDROMEDA II DWARF SPHEROIDAL GALAXY [PDF]
The Astrophysical Journal, 2012 14 pages, 10 figures, 4 tables, accepted for publication in ...
Ho, Nhung +9 more
openaire +5 more sources