Review of Solutions to the Cusp-Core Problem of the ΛCDM Model

This review aims at proposing to the field an overview of the Cusp-core problem, including a discussion of its advocated solutions, assessing how each can satisfactorily provide a description of central densities. Whether the Cusp-core problem reflects our insufficient grasp on the nature of dark ma...

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Bibliographic Details
Published in:Galaxies 2021-12, Vol.9 (4), p.123
Main Authors: Del Popolo, Antonino, Le Delliou, Morgan
Format: Article
Language:English
Subjects:
Cosmology
cusp-core problem
Cusps
Dark matter
Drawing and ironing
Mathematical models
Physics
Satellites
Simulation
ΛCDM model
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Summary:This review aims at proposing to the field an overview of the Cusp-core problem, including a discussion of its advocated solutions, assessing how each can satisfactorily provide a description of central densities. Whether the Cusp-core problem reflects our insufficient grasp on the nature of dark matter, of gravity, on the impact of baryonic interactions with dark matter at those scales, as included in semi-analytical models or fully numerical codes, the solutions to it can point either to the need for a paradigm change in cosmology, or to to our lack of success in ironing out the finer details of the ΛCDM paradigm.
ISSN:2075-4434
2075-4434
DOI:10.3390/galaxies9040123