213 citations · 1.3k across the 53 of their papers we have counts for
6 papers · 1 filter
Asymptotic kinematics of Globular Clusters: the emergence of a Tully-Fisher relation
X. Hernandez, A. J. Lara-D.
Using a recent homogeneous sample of 40 high quality velocity dispersion profiles for Galactic globular clusters, we study the low gravitational acceleration regime relevant to the…
Choked accretion: from radial infall to bipolar outflows by breaking spherical symmetry
Alejandro Aguayo-Ortiz, Emilio Tejeda, X. Hernandez
Steady state, spherically symmetric accretion flows are well understood in terms of the Bondi solution. Spherical symmetry however, is necessarily an idealized approximation to rea…
Choked accretion onto a Schwarzschild black hole: A hydrodynamical jet-launching mechanism
Emilio Tejeda, Alejandro Aguayo-Ortiz, X. Hernandez
We present a novel, relativistic accretion model for accretion onto a Schwarzschild black hole. This consists of a purely hydrodynamical mechanism in which, by breaking spherical s…
Relativistic interpretation and cosmological signature of Milgrom's acceleration
Roberto A. Sussman, X. Hernandez
We propose in this letter a relativistic coordinate independent interpretation for Milgrom's acceleration through a geometric constraint…
Gamma-ray Bursts as distance indicators through a machine learning approach
Maria Dainotti, Vahé Petrosian, Malgorzata Bogdan +7
Gamma-ray bursts (GRBs) are spectacularly energetic events, with the potential to inform on the early universe and its evolution, once their redshifts are known. Unfortunately, det…
Detailed Solar System dynamics as a probe of the Dark Matter hypothesis
X. Hernandez
Within the dark matter paradigm, explaining observed orbital dynamics at galactic level through the inclusion of a dominant dark halo, implies also the necessary appearance of dyna…