20 citations · 104 across the 20 of their papers we have counts for
20 papers
Equilibrium Halo Solutions of the Gross-Pitaevskii-Poisson System: The Role of the Particle Number
Francisco A. Guzmán, Elías Castellanos, Jorge Mastache
We investigate stationary halo-like solutions of the Gross-Pitaevskii-Poisson (GPP) system, which describes self-gravitating Bose-Einstein condensates with repulsive self-interacti…
Inverse-Scattering Reconstruction of Inflation from Scalar and Tensor Primordial Spectra
Jorge Mastache, Allan Hurtado
We develop an inverse-scattering framework to reconstruct the effective inflationary potentials governing scalar and tensor perturbations. By recasting the Mukhanov--Sasaki equatio…
Spectral distortions in the decaying QCD dark matter scenario
Jorge Mastache, Raúl Henriquez-Ortiz
We study the QCD--DM scenario by analyzing the imprint of energy injection from decaying dark-sector particles on the spectral distortions (SDs) of the Cosmic Microwave Background…
Non-Relativistic Boson Stars as Gravitational Quantum Droplets
Jorge Mastache, Elías Castellanos, Guillermo Chacón-Acosta
We analyze the dynamics of a gravitational bounded cloud of generic bosons or a boson star in the non-relativistic regime, assuming from the very beginning that the boson star is i…
Spectral Distortion Signatures of Step-like Inflationary Potential
Jorge Mastache, Wilson Barrera, Raúl Henríquez-Ortiz
In this work, we analyze a power-law inflationary potential enhanced with a step that can introduce features in the primordial power spectrum. We focus on the computation of the Sp…
The impact of human expert visual inspection on the discovery of strong gravitational lenses
Karina Rojas, Thomas E. Collett, Daniel Ballard +53
We investigate the ability of human 'expert' classifiers to identify strong gravitational lens candidates in Dark Energy Survey like imaging. We recruited a total of 55 people that…
Spectral Distortions from Axion Monodromy Inflation
Raul Henriquez-Ortiz, Jorge Mastache, Saul Ramos-Sanchez
With the advent of new missions to probe spectral distortions of the cosmic microwave background with unprecedented precision, the study of theoretical predictions of these signals…
Non-relativistic Boson Stars as N-Body Quantum Systems
Elías Castellanos, Guillermo Chacón-Acosta, Jorge Mastache
In the present work, we analyze the structural configuration of a collection of generic non-relativistic bosons forming a gravitational bound Bose-Einstein condensate that we inter…
Cosmological signatures of a Rapid Diluted Energy Density
Axel de la Macorra, Dante V. Gomez-Navarro, Alejandro Aviles +3
We study the cosmological signatures of having extra energy density, , beyond the CDM model that dilutes rapidly, faster than radiation, at a scale factor with a c…
The virial mode approach to Structure Formation with Warm Dark Matter
Axel de la Macorra, Jorge Mastache
The small scale structure opens a window to constrain the dynamical properties of Dark Matter. Here we study the clustering of warm dark matter (WDM) in a semi-analytical approach…
Is a Bose-Einstein Condensate a good candidate for Dark Matter? A test with Galaxy Rotation Curves
Elías Castellanos, Celia Escamilla-Rivera, Jorge Mastache
We analyze the rotation curves that correspond to a Bose--Einstein Condensate (BEC) type halo surrounding a Schwarzschild--type black hole to confront predictions of the model upon…
Analytic Fluid Approximation for Warm Dark Matter
Jorge Mastache, Axel de la Macorra
We present the full evolution of the velocity of a massive particle, along with the equation of state we can compute the energy density and pressure evolution for the background ev…
Bound Dark Matter (BDM) towards solving the Small Scale Structure Problem
Jorge Mastache, Axel de la Macorra
Cosmological observations such as structure formation, CMB, and cosmic distance ladder set tight constraints to the amount and nature of dark matter (DM). In particular structure f…
Inflationary Dynamics Reconstruction via Inverse-Scattering Theory
Jorge Mastache, Fernando Zago, Arthur Kosowsky
The evolution of inflationary fluctuations can be recast as an inverse scattering problem. In this context, we employ the Gel'fand-Levitan method from inverse-scattering theory to…
Una revisión a la teoría básica del CMB (A review of the basic theory of CMB)
Jorge Mastache
Spanish: La Cosmología esta progresando a pasos agigantados gracias a la cantidad espectacular de datos observacionales que se obtienen tanto de los experimentos en tierra como sat…
Dark Matter Phase Transition Constrained at O(0.1) eV with LSB Rotation Curves
Jorge Mastache, Axel de la Macorra, Jorge L. Cervantes-Cota
In order to unravel the nature of the dark matter (DM) we have proposed a particle-physics motivated model called Bound Dark Matter (BDM) that consist in DM massless particles abov…
Extra relativistic degrees of freedom without extra particles using Planck data
Jorge Mastache, Axel de la Macorra
A recent number of analysis of cosmological data have shown indications for the presence of extra radiation beyond the standard model at equality and nucleosynthesis epoch, which h…
Testing modified gravity at large distances with the HI Nearby Galaxy Survey's rotation curves
Jorge Mastache, Jorge L. Cervantes-Cota, Axel de la Macorra
Recently a new -quantum motivated- theory of gravity has been proposed that modifies the standard Newtonian potential at large distances when spherical symmetry is considered. Acco…
Core-Cusp revisited and Dark Matter Phase Transition Constrained at O(0.1) eV with LSB Rotation Curve
Jorge Mastache, Axel de la Macorra, Jorge L. Cervantes-Cota
Recently a new particle physics model called Bound Dark Matter (BDM) has been proposed in which dark matter (DM) particles are massless above a threshold energy (Ec) and acquire ma…
Galactic phase transition at Ec=0.11 eV from rotation curves of cored LSB galaxies and nonperturbative dark matter mass
Axel de la Macorra, Jorge Mastache, Jorge L. Cervantes-Cota
We analyze the a set of seventeen rotation curves of Low Surface Brightness (LSB) galaxies from the The HI Nearby Galaxy Survey (THINGS) with different mass models to study the cor…