Astronomical observations reveal a major deficiency in our understanding of physics—the
detectable mass is insufficient to explain the observed motions in a huge variety of systems …

General relativity and its Newtonian weak field limit are not sufficient to explain the observed
phenomenology in the Universe, from the formation of large-scale structures to the dynamics …

We study the radial acceleration relation (RAR) between the total (a tot) and baryonic (a
bary) centripetal acceleration profiles of central galaxies in the cold dark matter (CDM) …

Dark matter phenomena in rotationally supported galaxies exhibit a characteristic
acceleration scale of g†≈ 1.2× 10− 10 ms− 2. Whether this acceleration is a manifestation of …

We carry out a test of the radial acceleration relation (RAR) for galaxy clusters from two
different catalogs compiled in literature, as an independent cross-check of two recent …

We analyse the dynamics of a single disk galaxy from a general relativistic viewpoint. We
investigate dark matter (DM) effects in terms of a known family of stationary axially-symmetric …

We propose a complementary and fast approach to study galaxy rotation curves directly from
the sample data, instead of individual fits. With this approach, some relevant tests can be …

We look for empirical evidence of a nonminimal coupling (NMC) between dark matter (DM)
and gravity in the dynamics of local spiral galaxies. In particular, we consider a theoretically …

Aims. Observational data show that the observed luminous matter is not sufficient to explain
several features of the present universe, from gravitational structure formation to the …

We carry out a test of the radial acceleration relation (RAR) for a sample of 10 dynamically
relaxed and cool-core galaxy clusters imaged by the Chandra X-ray telescope, which was …