210 citations · 2.6k across the 106 of their papers we have counts for
18 papers · 1 filter
as Dark Matter
Tonatiuh Matos, Alberto Vázquez-González, Juan Magaña
In this paper we consider scalar field potential as a candidate to dark matter. If it is an ultralight boson particle, it condensates like a Bose-Einstein system at very earl…
Inflation from IIB Superstrings with Fluxes
Erandy Ramirez, Tonatiuh Matos
We study the conditions needed to have an early epoch of inflationary expansion with a potential coming from IIB superstring theory with fluxes involving two moduli fields. The phe…
Unification of cosmological scalar fields
Abdel Pérez-Lorenzana, Merced Montesinos, Tonatiuh Matos
We present a model where early inflation and late accelerating expansion of the Universe are driven by the real and imaginary parts of a single complex scalar field, which we ident…
Stellar polytropes and Navarro-Frenk-White halo models: comparison with observations
Jesus Zavala, Dario Nunez, Roberto A. Sussman +2
Motivated by the possible conflict between the Navarro-Frenk-White(NFW) model predictions for the dark matter contents of galactic systems and its correlation with baryonic surface…
A general relativistic approach to the Navarro-Frenk-White (NFW) galactic halos
Tonatiuh Matos, Dario Nunez, Roberto A Sussman
In order to study their interplay with large scale cosmic evolution and with relativistic effects, such as gravitational lenses, quintessence sources or gravitational waves, we con…
Scalar field "mini--MACHOs": a new explanation for galactic dark matter
Xavier Hernández, Tonatiuh Matos, Roberto A Sussman +1
We examine the possibility that galactic halos are collisionless ensembles of scalar field ``massive compact halo objects'' (MACHOs). Using mass constraints from MACHO microlensing…