Unstable Cold Dark Matter and the Cuspy Halo Problem in Dwarf Galaxies [PDF]
The Astrophysical Journal, 2003 5 pages, 1 figure, accepted for publication in ...
F. J. Snchez-Salcedo
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DWARF GALAXIES OF THE LOCAL GROUP [PDF]
Ann.Rev.Astron.Astrophys.36:435-506,1998, 1998 ▪ Abstract The Local Group dwarf galaxies offer a unique window to the detailed properties of the most common type of galaxy in the Universe. In this review, I update the census of Local Group dwarfs based on the most recent distance and radial velocity ...
M. Mateo
semanticscholar +2 more sources
Perseus I and the NGC 3109 association in the context of the Local Group dwarf galaxy structures [PDF]
2014, MNRAS, 440, 908, 2014 The recently discovered dwarf galaxy Perseus I appears to be associated with the dominant plane of non-satellite galaxies in the Local Group (LG). We predict its velocity dispersion and those of the other isolated dwarf spheroidals Cetus and Tucana to be
M. Pawlowski, S. McGaugh
semanticscholar +2 more sources
Dwarf galaxies in the MATLAS survey: The satellite system of NGC 474 under scrutiny with MUSE [PDF]
A&A 693, A44 (2025)A recent study of the distribution of dwarf galaxies in the MATLAS sample in galaxy groups revealed an excess of flattened satellite structures, reminiscent of the co-rotating planes of dwarf galaxies discovered in the local Universe.
O. Muller +14 more
semanticscholar +2 more sources
Chemical Evolution of Elliptical Galaxies: Mg2 Gradients and G-Dwarf Problem [PDF]
Highlights of Astronomy, 1998 Stellar populations of elliptical galaxies were studied extensively in the recent past (eg., Arimoto & Yoshii 1987; Buzzoni et al. 1992; Worthey 1994; Kodama & Arimoto 1997). However, colours and line-strengths analysed by these approaches came mainly from central regions of galaxies and possible variations of stellar population structure ...
N. Arimoto, C. Kobayashi
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New Type Ia Supernova Yields and the Manganese and Nickel Problems in the Milky Way and Dwarf Spheroidal Galaxies [PDF]
The Astrophysical Journal, 2020 Abstract In our quest to identify the progenitors of Type Ia supernovae (SNe Ia), we first update the nucleosynthesis yields for both near-Chandrasekhar- (Ch) and sub-Ch-mass white dwarfs (WDs) for a wide range of metallicities with our 2D hydrodynamical code and the latest nuclear reaction rates.
Shing-Chi Leung +4 more
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INTERGALACTIC GAS IN GROUPS OF GALAXIES: IMPLICATIONS FOR DWARF SPHEROIDAL FORMATION AND THE MISSING BARYONS PROBLEM [PDF]
The Astrophysical Journal, 2011 9 pages, 7 figures, accepted for publication in ...
E. Freeland, Eric M. Wilcots
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Orbits and adiabatic contraction in scalar-field dark matter halos: revisiting the cusp-core problem in dwarf galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Bose–Einstein-condensed dark matter, also called scalar field dark matter (SFDM), has become a popular alternative to cold dark matter (CDM), because it predicts galactic cores, in contrast to the cusps of CDM halos (‘cusp-core problem’).
Pils, Kevin, Rindler-Daller, Tanja
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The cusp-core problem in dwarf galaxies : new solutions
, 2020 Cette thèse porte sur la nature de la matière noire (MN) et plus particulièrement sur le problème de la disparité des profils de densité interne de MN dans les galaxies naines, le problème « cusp-core". Nous avons commencé par réétudier ce problème pour la galaxie naine, Fornax, en utilisant la distribution spatiale et de masse des amas globulaires ...
Pierre Boldrini
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SDSS-IV MaNGA: the ‘G-dwarf problem’ revisited [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2021 The levels of heavy elements in stars are the product of enhancement by previous stellar generations, and the distribution of this metallicity among the population contains clues to the process by which a galaxy formed.
M. Greener +5 more
semanticscholar +1 more source