173 citations · 1.1k across the 43 of their papers we have counts for
6 papers · 1 filter
Constraining ultralight bosons in dwarf spheroidal galaxies with a radially varying anisotropy
Ivan De Martino
Axions, and axion-like particles, have come back into fashion in the last decades as a possible solution to the galactic-scale crisis suffered by the cold dark matter model. In the…
Explaining the oblate morphology of dwarf spheroidals with Wave Dark Matter perturbations
Riccardo Della Monica, Ivan de Martino, Tom Broadhurst
We investigate whether the oblate, spheroidal morphology of common dwarf spheroidal galaxies (dSph) may result from the slow relaxation of stellar orbits within a halo of Wave Dark…
The Galactic Center as a laboratory for theories of gravity and dark matter
Mariafelicia de Laurentis, Ivan De Martino, Riccardo Della Monica
The Galactic Center of the Milky Way, thanks to its proximity, allows to perform astronomical observations that investigate physical phenomena at the edge of astrophysics and funda…
Dynamics of dwarf galaxies in gravity
Ivan de Martino, Antonaldo Diaferio, Luisa Ostorero
We use the kinematic data of the stars in eight dwarf spheroidal galaxies to assess whether gravity can fit the observed profiles of the line-of-sight velocity dispersion of…
The proper motion of stars in dwarf galaxies: distinguishing central density cusps from cores
Ivan de Martino, Antonaldo Diaferio, Luisa Ostorero
We show that measuring the proper motion of stars within a dwarf galaxy, with an uncertainty of 1 km/s at most, can establish whether the Dark Matter (DM) density pro…
Detection of a universal core-halo transition in dwarf galaxies as predicted by Bose-Einstein dark matter
Alvaro Pozo, Tom Broadhurst, Ivan de Martino +4
The presence of large dark matter cores in dwarf galaxies has long been puzzling and many are now known to be surrounded by an extensive halo of stars. Distinctive core-halo struct…