3 papers
astro-ph.GA2025
Thermodynamics sheds light on the nature of dark matter galactic halos
Andrés Aceña, Juan Barranco, Argelia Bernal +1
In spherical symmetry, the gravitational potential is uniquely determined by the rotational velocity profile. Numerous galaxies exhibit a universal velocity profile from which a un…
astro-ph.GA2024
Preliminary Study on Dark Matter-Dominated Systems: Further Analysis for galactic dark matter halos with Pressure
Andrés Aceña, Juan Barranco, Argelia Bernal +2
Low surface brightness galaxies are an excellent laboratory where stars and baryonic matter act as tracers of the gravitational potential of the dark matter halo. If dark matter is…
gr-qc2024
Revisiting relativistic electrically charged polytropic spheres
Andrés Aceña, Bruno Cardin Guntsche, Iván Gentile de Austria
We revisit the problem of the structure and physical properties of electrically charged static spherically symmetric solutions of the Einstein-Maxwell system of equations where the…