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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



ID: 660621.0, MPI für Astronomie / Publikationen_mpia
Jets from young massive stars
Authors:Vaidya, B.; Fendt, C.; Beuther, H.; Porth, O.
Publisher:ASP
Date of Publication (YYYY-MM-DD):2012
Title of Proceedings:Advances in Computational Astrophysics: Methods, Tools, and Outcome
Start Page:403
End Page:404
Volume (in Series):453
Name of Conference/Meeting:Advances in Computational Astrophysics: Methods, Tools, and Outcome
Audience:Not Specified
Abstract / Description:This work investigates various physical processes that impacts the outflow dynamics (i.e. its acceleration and collimation) around young massive stars. We perform axisymmetric MHD simulations particularly considering the radiation pressure exerted by the central star and the disk. In order to disentangle MHD effects from radiative forces, we start the simulation in pure MHD, and later switch on the radiation force. We perform a parameter study considering different stellar masses (thus luminosity), magnetic flux, and line-force strength. We find that it is mainly the stellar radiation which affects the jet dynamics. Essentially, our parameter runs with different stellar mass has shown that when the stellar mass (thus luminosity) increases (with age), the outflows become less collimated.
Comment of the Author/Creator:Date: 2012, July 1, 2012
External Publication Status:published
Document Type:Conference-Paper
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://cdsads.u-strasbg.fr/abs/2012ASPC..453..403V
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