A too-many dwarf satellite galaxies problem in the MATLAS low-to-moderate density fields [PDF]
Astronomy & AstrophysicsContext.Dwarf galaxy abundances can serve as discernment tests for models of structure formation. Previous small-scale tensions between observations and dark matter-only cosmological simulations may have been resolved with the inclusion of baryonic processes; however, these successes have been largely concentrated on the Local Group dwarfs the feedback
Kosuke Jamie Kanehisa +3 more
semanticscholar +6 more sources
Inflation and the dwarf galaxy problem [PDF]
Physical Review D, 2000 Cosmological N-body simulations with scale-invariant initial perturbations show too many virialized objects of dwarf-galaxy masses in a typical galactic halo in contradiction to observation and stability of galactic discs. We present a model of double hybrid inflation which predicts density fluctuations with a small-scale cutoff to account for the ...
J. Yokoyama
semanticscholar +7 more sources
Dwarf galaxy rotation curves and the core problem of dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 33 pages, 24 figures. Accepted for publication in MNRAS.
Rob A. Swaters +2 more
semanticscholar +7 more sources
The mass of dwarf spheroidal galaxies and the missing satellite problem [PDF]
Proceedings of the International Astronomical Union, 2005 4 pages, 1 figure, to appear in the proceedings of the IAUC198 "Near-Field Cosmology with Dwarf Elliptical Galaxies", H. Jerjen & B. Binggeli (eds.).
N. Wyn Evans +4 more
arxiv +6 more sources
Embedding globular clusters in dark matter minihaloes solves the cusp–core and timing problems in the Fornax dwarf galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We use a fully GPU N-body code to demonstrate that dark matter (DM) minihaloes, as a new component of globular clusters (GCs), resolve both the timing and cusp–core problems in Fornax if the (five or six) GCs were recently accreted (≤3 Gyr ago) by Fornax.
Pierre Boldrini +4 more
semanticscholar +8 more sources
On The Missing Dwarf Problem In Clusters And Around The Nearby Galaxy M33 [PDF]
, 2017 This work was funded by STFC and Cardiff University.
O. Keenan
semanticscholar +5 more sources
A too-many-dwarf-galaxy-satellites problem in the M 83 group [PDF]
Astronomy & AstrophysicsDwarf galaxies in groups of galaxies provide excellent test cases for models of structure formation. This led to a so-called small-scale crisis, including the famous missing-satellites and too-big-to-fail problems. It was suggested that these two problems can be resolved by introducing baryonic physics to cosmological simulations.
Oliver Müller +6 more
semanticscholar +9 more sources
Resolving the timing problem of the globular clusters orbiting the Fornax dwarf galaxy [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 8 pages, 10 figures, 1 table, MNRAS in ...
Antonaldo Diaferio +3 more
semanticscholar +6 more sources
The Cusp/Core Problem in Galactic Halos: Long-Slit Spectra for a Large Dwarf Galaxy Sample [PDF]
The Astronomical Journal, 2005 17 pages, 14 figures; uses emulateapj. Accepted for publication in AJ.
Riccardo Giovanelli +4 more
semanticscholar +6 more sources
Lack of nuclear clusters in dwarf spheroidal galaxies: implications for massive black holes formation and the cusp/core problem [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 12 pages, 14 figures, 4 tables, in press in the ...
ARCA SEDDA, MANUEL +1 more
semanticscholar +7 more sources