Comparing accretion centres between rotating and turbulent cloud cores

Guillermo Arreaga-García*, Jaime Klapp

*Autor correspondiente de este trabajo

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

1 Cita (Scopus)


In this chapter we use the method of Smoothed Particle Hydrodynamics (SPH) to study the number and properties of accretion centres formed when a molecular gas cloud collapses, starting with initial conditions corresponding either to a turbulent or a rigidly rotating sphere. To do so we use a modified version of the SPH code GADGET-2, which is capable to detect when a gas particle becomes an accretion centre, inheriting the mass and momentum of all its closest neighbours. For both types of models (turbulent and uniformly rotating), we also study the effects of considering two different initial mass distributions: a uniform-density and a centrally condensed Plummer profile. We find that the turbulent models are more propense to fragment into a larger number of protostellar objects than the purely rotating clouds. However, in both types of models the average protostellar mass increases with increasing size of the kinetic energy content of the cloud.

Idioma originalInglés
Título de la publicación alojadaComputational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment, FLUIDOS 2012
EditoresLeonardo Di G. Sigalotti, Eloy Sira, Jaime Klapp
Número de páginas12
ISBN (versión impresa)9783319001906
EstadoPublicada - 2014
Evento1st Workshop of the Venezuelan Society of Fluid Mechanics , FLUIDOS 2012 - Margarita Island, República Bolivariana de Venezuela
Duración: 5 nov. 20129 nov. 2012

Serie de la publicación

NombreEnvironmental Science and Engineering
ISSN (versión impresa)1863-5520
ISSN (versión digital)1863-5539


Conferencia1st Workshop of the Venezuelan Society of Fluid Mechanics , FLUIDOS 2012
País/TerritorioRepública Bolivariana de Venezuela
Ciudad Margarita Island

Nota bibliográfica

Publisher Copyright:
© Springer International Publishing Switzerland 2014.


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