16 citations · 44 across the 6 of their papers we have counts for
3 papers · 1 filter
Dwarf Galaxies without Dark Matter: constraints on Modified Gravity
Ali Rida Khalifeh, Raul Jimenez
The discovery of dwarf galaxies without dark matter provides, counter-intuitively, strong support for the CDM standard model of cosmology. Their presence is well accommodat…
Can Dark Matter be Geometry? A Case Study with Mimetic Dark Matter
Ali Rida Khalifeh, Nicola Bellomo, José Luis Bernal +1
We investigate the possibility of dark matter being a pure geometrical effect, rather than a particle or a compact object, by exploring a specific modified gravity model: mimetic d…
Measuring the Homogeneity of the Universe Using Polarization Drift
Raul Jimenez, Roy Maartens, Ali Rida Khalifeh +3
We propose a method to probe the homogeneity of a general universe, without assuming symmetry. We show that isotropy can be tested at remote locations on the past lightcone by comp…