Comparing accretion centres between rotating and turbulent cloud cores

Guillermo Arreaga-García; Jaime Klapp

doi:10.1007/978-3-319-00191-3_36

Comparing accretion centres between rotating and turbulent cloud cores

Guillermo Arreaga-García^*, Jaime Klapp

^*Corresponding author for this work

Departamento de Investigación en Física

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

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.

Original language	English
Title of host publication	Computational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment, FLUIDOS 2012
Editors	Leonardo Di G. Sigalotti, Eloy Sira, Jaime Klapp
Publisher	Springer
Pages	509-520
Number of pages	12
ISBN (Print)	9783319001906
DOIs	https://doi.org/10.1007/978-3-319-00191-3_36
State	Published - 2014
Event	1st Workshop of the Venezuelan Society of Fluid Mechanics , FLUIDOS 2012 - Margarita Island, Venezuela, Bolivarian Republic of Duration: 5 Nov 2012 → 9 Nov 2012

Publication series

Name	Environmental Science and Engineering
ISSN (Print)	1863-5520
ISSN (Electronic)	1863-5539

Conference

Conference	1st Workshop of the Venezuelan Society of Fluid Mechanics , FLUIDOS 2012
Country/Territory	Venezuela, Bolivarian Republic of
City	Margarita Island
Period	5/11/12 → 9/11/12

Bibliographical note

Publisher Copyright:
© Springer International Publishing Switzerland 2014.

Access to Document

10.1007/978-3-319-00191-3_36

Cite this

Arreaga-García, G., & Klapp, J. (2014). Comparing accretion centres between rotating and turbulent cloud cores. In L. D. G. Sigalotti, E. Sira, & J. Klapp (Eds.), Computational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment, FLUIDOS 2012 (pp. 509-520). (Environmental Science and Engineering). Springer. https://doi.org/10.1007/978-3-319-00191-3_36

Arreaga-García, Guillermo ; Klapp, Jaime. / Comparing accretion centres between rotating and turbulent cloud cores. Computational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment, FLUIDOS 2012. editor / Leonardo Di G. Sigalotti ; Eloy Sira ; Jaime Klapp. Springer, 2014. pp. 509-520 (Environmental Science and Engineering).

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Arreaga-García, G & Klapp, J 2014, Comparing accretion centres between rotating and turbulent cloud cores. in LDG Sigalotti, E Sira & J Klapp (eds), Computational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment, FLUIDOS 2012. Environmental Science and Engineering, Springer, pp. 509-520, 1st Workshop of the Venezuelan Society of Fluid Mechanics , FLUIDOS 2012, Margarita Island, Venezuela, Bolivarian Republic of, 5/11/12. https://doi.org/10.1007/978-3-319-00191-3_36

Comparing accretion centres between rotating and turbulent cloud cores. / Arreaga-García, Guillermo; Klapp, Jaime.
Computational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment, FLUIDOS 2012. ed. / Leonardo Di G. Sigalotti; Eloy Sira; Jaime Klapp. Springer, 2014. p. 509-520 (Environmental Science and Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Arreaga-García G, Klapp J. Comparing accretion centres between rotating and turbulent cloud cores. In Sigalotti LDG, Sira E, Klapp J, editors, Computational and Experimental Fluid Mechanics with Applications to Physics, Engineering and the Environment, FLUIDOS 2012. Springer. 2014. p. 509-520. (Environmental Science and Engineering). doi: 10.1007/978-3-319-00191-3_36

Comparing accretion centres between rotating and turbulent cloud cores

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