activity
20152025
most citedGravity or turbulence? -III. Evidence of pure thermal Jeans fragmentation at ~0.1 pc scale

116 citations · 202 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2025

Dynamical heating of newborn stars driven by accretion-induced orbital tightening

Vianey Camacho, Andrea Bonilla-Barroso, Javier Ballesteros-Paredes +2

In previous works, we have shown that stars in the Orion and the Lagoon Nebula Clusters, and simulations of collapsing clouds, exhibit constant velocity dispersion as a function of…

astro-ph.GA2024★ 4 cited

Gravity or turbulence? VII. The Schmidt-Kennicutt law, the star formation efficiency, and the mass density of clusters from gravitational collapse rather than turbulent support

Manuel Zamora-Aviles, Vianey Camacho, Javier Ballesteros-Paredes +7

We explore the Schmidt-Kennicutt (SK) relations and the star formation efficiency per free-fall time (), mirroring observational studies, in numerical simulations of fi…

astro-ph.GA2024

Gravity or turbulence? VI. The physics behind the Kennicutt-Schmidt relations

Javier Ballesteros-Paredes, Manuel Zamora-Avilés, Carlos Román-Zúñiga +6

We explain the large variety of star formation laws in terms of one single, simple law that can be inferred from the definition of the star formation rate and basic algebra. The re…

astro-ph.GA2024★ 2 cited

The Turbulent Support (TS) and Global Hierarchical Collapse (GHC) models for molecular clouds compared. Differences, convergence, and myths

Enrique Vázquez-Semadeni, Aina Palau, Gilberto C. Gómez +8

We provide a detailed comparison between the ``turbulent support'' (TS) and ``global hierarchical collapse'' (GHC) models for molecular clouds and star formation, their respective…

astro-ph.GA2022★ 8 cited

The kinetic and magnetic energy budget of hub-filament systems during the gravitational fragmentation of molecular clouds

Vianey Camacho, Enrique Vázquez-Semadeni, Manuel Zamora-Avilés +1

We present a numerical study of the balance between the gravitational (Eg), kinetic (Ek), and magnetic (Em) energies of structures within a hub-filament system in a simulation of t…

astro-ph.GA2022

Why most molecular clouds are gravitationally dominated

Laura Ramírez-Galeano, Javier Ballesteros-Paredes, Rowan Smith +2

Observational and theoretical evidence suggests that a substantial population of molecular clouds (MCs) appear to be unbound, dominated by turbulent motions. However, these estimat…

astro-ph.GA2022★ 10 cited

Gravity or turbulence V: Star forming regions undergoing violent relaxation

Andrea Bonilla-Barroso, J. Ballesteros-Paredes, Jesus Hernández +6

Using numerical simulations of the formation and evolution of stellar clusters within molecular clouds, we show that the stars in clusters formed within collapsing molecular cloud…

astro-ph.GA2020★ 20 cited

Simultaneous evolution of the virial parameter and star formation rate in molecular clumps undergoing global hierarchical collapse

Vianey Camacho, Enrique Vázquez-Semadeni, Aina Palau +2

We compare dense clumps and cores in a numerical simulation of molecular clouds (MCs) undergoing global hierarchical collapse (GHC) to observations in two MCs at different evolutio…

astro-ph.GA2016★ 42 cited

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…

astro-ph.GA2015★ 116 cited

Gravity or turbulence? -III. Evidence of pure thermal Jeans fragmentation at ~0.1 pc scale

Aina Palau, Javier Ballesteros-Paredes, Enrique Vazquez-Semadeni +9

We combine previously published interferometric and single-dish data of relatively nearby massive dense cores that are actively forming stars to test whether their `fragmentation l…