210 citations · 2.6k across the 106 of their papers we have counts for
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Analytic imaging formation analysis for Dark Matter halos: geometric ray tracing and caustics using the gravitational refraction law
Omar de J. Cabrera-Rosas, Tonatiuh Matos
One of the most challenging open questions in physics today is discovering the nature of dark matter. In this work we study the imaging formation in dark matter (DM) halos due to a…
Proca Stars with Dark Photons from Spontaneous Symmetry Breaking of the Scalar Field Dark Matter
Leonardo Sán. Hernández, Tonatiuh Matos
Recently, the Scalar Field Dark Matter (SFDM) model (also known as Fuzzy, Wave, Bose-Einstein, Ultra-light Dark Matter) has gained a lot of attention because it has provided simple…
Geodesic completeness of a ring wormhole
Juan Carlos Del Águila, Tonatiuh Matos
In this work the possible geodesic completeness of an electromagnetic dipole wormhole is studied in detail. The space-time contains a curvature singularity and belongs to a class o…
General perturbations in D+1 standard and brane cosmology revisited
Zoé Delfín, Rubén Cordero, Tonatiuh Matos +1
In the present work, we generalize the theory of perturbations in a D + 1 dimensional space-time with cosmological constant, studying scalar, vector and tensor perturbations, as we…
Hydrodynamic representation and Energy Balance for Dirac and Weyl fermions in curved space-times
Tonatiuh Matos, Omar Gallegos, Pierre-Henri Chavanis
Using a generalized Madelung transformation, we derive the hydrodynamic representation of the Dirac equation in arbitrary curved space-times coupled to an electromagnetic field. We…
Gravitational perturbations in the Newman-Penrose formalism: Applications to wormholes
Juan Carlos Del Águila, Tonatiuh Matos
In this work we study the problem of linear stability of gravitational perturbations in stationary and spherically symmetric wormholes. For this purpose, we employ the Newman-Penro…