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 …

We study the structure of compact objects that contain non-self annihilating, self-interacting
dark matter admixed with ordinary matter made of neutron star and white dwarf materials …

We investigate the cosmological implications of the Friedmann-Robertson-Walker (FRW)
model having a flat-spatial section with barotropic fluid. We examine the resulting …

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 …

In the framework of the spherical collapse model, we study the influence of shear and
rotation terms for dark matter fluid in clustering dark energy models. We evaluate, for …

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 …

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 …