A possible dwarf galaxy satellite-of-satellite problem in ΛCDM [PDF]
, 2023 Dark matter clusters on all scales, therefore it is expected that even substructure should host its own substructure. Using the Extragalactic Distance Database, we searched for dwarf galaxy satellites of dwarf galaxies, i.e. satellite-of-satellite galaxies, corresponding to these substructures-of-substructure.
Oliver Müller +4 more
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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.).
J. I. Read +4 more
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On The Missing Dwarf Problem In Clusters And Around The Nearby Galaxy M33 [PDF]
, 2017 This work was funded by STFC and Cardiff University.
Olivia Keenan
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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 +2 more
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Conversion Problems: How (Not) to Determine Molecular Masses in Dwarf Galaxies [PDF]
, 2001 The determination of molecular gas masses in star forming dwarf irregular galaxies is crucial to assess the star formation process in these objects. But the derivation of the molecular gas content of dwarf galaxies has been a long-standing problem.
S. Huettemeister
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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
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An assessment of the “too big to fail” problem for field dwarf galaxies in view of baryonic feedback effects [PDF]
Astronomy & Astrophysics, 2016 Recent studies have established that extreme dwarf galaxies --whether satellites or field objects-- suffer from the so called "too big to fail" (TBTF) problem. Put simply, the TBTF problem consists of the fact that it is difficult to explain both the measured kinematics of dwarfs and their observed number density within the LCDM framework.
Emmanouil Papastergis, Francesco Shankar
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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, E. Wilcots
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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
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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 ...
G. W. Angus, A. Diaferio
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