The ΛCDM model, or concordance cosmology, as it is often called, is a paradigm at its
maturity. It is clearly able to describe the universe at large scale, even if some issues remain …

This paper is based on lectures given at the IX Mexican School on Gravitation and
Mathematical Physics. The lectures (as the paper) were a broad-band review of the current …

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 …

In the present paper, we compare the predictions of two well known mechanisms considered
able to solve the cusp/core problem (a. supernova feedback; b. baryonic clumps-DM …

We study, by means of the model proposed in Del Popolo (2009), the effect of baryon
physics on the small scale problems of the CDM model. We show that, using this model, the …

We develop and apply new techniques to uncover systematic effects in galaxy rotation
curves (RCs). Considering that an ideal dark matter (DM) profile should yield RCs that have …

We study the dark matter (DM) surface density using the SPARC sample and compare it to
Donato et al.(2009) result. By means of MCMC method, we infer the best-fitting parameters …

In this article, we test the conclusion of the universality of the dark matter (DM) halo surface
density μ0D= ρ0 r 0. According to our study, the dispersion of values of μ0D is twice as high …

In this paper, we study how the presence of bulge formation in galaxies influence their inner
density profile, by means of an extended version of the Del Popolo (2009) semi-analytical …

We continue the study of the impact of baryon physics on the small scale problems of the
ΛCDM model, based on a semi-analytical model (Del Popolo, 2009). With such model, we …