366 citations · 708 across the 11 of their papers we have counts for
12 papers
Density profile evolution during prestellar core collapse: Collapse starts at the large scale
Gilberto C. Gómez, Enrique Vázquez-Semadeni, Aina Palau
We study the gravitationally-dominated, accretion-driven evolution of a prestellar core. In our model, as the core's density increases, it remains immersed in a constant-density en…
Global Hierarchical Collapse In Molecular Clouds. Towards a Comprehensive Scenario
Enrique Vázquez-Semadeni, Aina Palau, Javier Ballesteros-Paredes +2
We present a unified description of the scenario of Global Hierarchical Collapse and fragmentation (GHC) in molecular clouds (MCs), owing to the continuous decrease of the average…
MHD simulations of ram pressure stripping of a disk galaxy
Mariana Ramos-Martínez, Gilberto C. Gómez, Angeles Pérez-Villegas
The removal of the interstellar medium (ISM) of disk galaxies through ram pressure stripping (RPS) has been extensively studied in numerous simulations. Nevertheless, the role of m…
Energy budget of forming clumps in numerical simulations of collapsing clouds
Vianey Camacho, Enrique Vázquez-Semadeni, Javier Ballesteros-Paredes +3
We analyze the physical properties and energy balance of density enhancements in two SPH simulations of the formation, evolution, and collapse of giant molecular clouds. In the sim…
The Galactic Branches as a Possible Evidence for Transient Spiral Arms
Angeles Pérez-Villegas, Gilberto C. Gómez, Bárbara Pichardo
With the use of a background Milky-Way-like potential model, we performed stellar orbital and magnetohydrodynamic (MHD) simulations. As a first experiment, we studied the gaseous r…
Inverse Hubble Flows in Molecular Clouds
Jesús A. Toalá, Enrique Vázquez-Semadeni, Pedro Colín +1
Motivated by recent numerical simulations of molecular cloud (MC)evolution, in which the clouds engage in global gravitational contraction, and local collapse events culminate sign…