Results 31 to 40 of about 35,030 (307)
The Andromeda Dwarf Spheroidal Galaxies [PDF]
Symposium - International Astronomical Union, 1999 Our current knowledge of M31's dwarf spheroidal companions is reviewed. Two topics of recent interest constitute the bulk of this review. First, color-magnitude diagrams reaching below the horizontal branch have been constructed for two M31 dwarf spheroidals, based on images from HST/WFPC2. The horizontal branches are predominantly red in both galaxies,
Armandroff, Taft E., Da Costa, Gary S.
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A global analysis of dark matter signals from 27 dwarf spheroidal galaxies using 11 years of Fermi-LAT observations [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 We search for a dark matter signal in 11 years of Fermi-LAT gamma-ray data from 27 Milky Way dwarf spheroidal galaxies with spectroscopically measured J-factors.
S. Hoof, A. Geringer-Sameth, R. Trotta
semanticscholar +1 more source
Dwarf Spheroidal Galaxies [PDF]
Symposium - International Astronomical Union, 1994 Dwarf Spheroidal (dSph) galaxies are the faintest baryonic systems recognized as galaxies. Understanding the structure and stellar populations of these systems is critical for the modelling of their formation and evolution, and by extension, for understanding the general problem of galaxy formation ...
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Dwarf Spheroidal Galaxies in the Virgo Cluster [PDF]
The Astrophysical Journal, 1998 We present a study of the smallest and faintest galaxies found in a very deep photographic R band survey of regions of the Virgo Cluster, totalling over 3 square degrees, made with the UK Schmidt Telescope. The objects we detect have the same physical sizes and surface brightnesses as Local Group dwarf spheroidal galaxies.
Jones, JB +3 more
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Stellar Density Profiles of Dwarf Spheroidal Galaxies [PDF]
Astrophysical Journal, 2019 We apply a flexible parametric model, a combination of generalized Plummer profiles, to infer the shapes of the stellar density profiles of the Milky Way’s satellite dwarf spheroidal galaxies (dSphs).
A. Moskowitz, M. Walker
semanticscholar +1 more source
Constraints on dark matter annihilation in dwarf spheroidal galaxies from low frequency radio observations [PDF]
Physical Review D, 2019 We present the first observational limits on the predicted synchrotron signals from particle Dark Matter annihilation models in dwarf spheroidal galaxies at radio frequencies below 1 GHz.
Arpan Kar +4 more
semanticscholar +1 more source
FORMATION OF DWARF SPHEROIDAL GALAXIES VIA MERGERS OF DISKY DWARFS [PDF]
The Astrophysical Journal, 2011 6 pages, 2 figures, LaTeX (uses emulateapj.cls). Replaced to match the version accepted for publication in ApJL.
Kazantzidis, S +4 more
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Dark satellites and the morphology of dwarf galaxies [PDF]
, 2012 One of the strongest predictions of the LambdaCDM cosmological model is the presence of dark satellites orbiting all types of galaxies. We focus here on the dynamical effects of such satellites on disky dwarf galaxies, and demonstrate that these ...
Bergvall +16 more
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Scaling relations for dark matter annihilation and decay profiles in dwarf spheroidal galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Measuring the dark matter distribution in dwarf spheroidal galaxies (dSphs) from stellar kinematics is crucial for indirect dark matter searches, as these distributions set the fluxes for both dark matter annihilation (J-Factor) and decay (D-Factor ...
A. Pace, L. Strigari
semanticscholar +1 more source
Dwarf Cepheids in the Carina Dwarf Spheroidal Galaxy [PDF]
The Astronomical Journal, 1998 20 pages of text, 7 ...
Mateo, Mario +2 more
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