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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 559077.0, MPI für Astronomie / Publikationen_mpia
Magnetic field sructure in a high-mass outflow/disk system
Authors:Beuther, H.; Vlemmings, W. H. T.; Rao, R.; van der Tak, F. F. S.
Language:English
Date of Publication (YYYY-MM-DD):2010
Title of Journal:The Astrophysical Journal
Journal Abbrev.:ApJ
Volume:724
Issue / Number:1
Start Page:L113
End Page:L117
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:To characterize the magnetic field structure of the outflow and core region within a prototypical high-mass star-forming region, we analyzed polarized CO(3-2)—for the first time observed with the Submillimeter Array—as well as 880 μm submillimeter continuum emission from the high-mass outflow/disk system IRAS 18089-1732. Both emission features with polarization degrees at a few percent level indicate that the magnetic field structure is largely aligned with the outflow/jet orientation from small core scales to larger outflow scales. Although quantitative estimates are crude, the analysis indicates that turbulent energy dominates over magnetic energy. The data also suggest a magnetic field strength increase from the lower-density envelope to the higher-density core.
Free Keywords:ISM: jets and outflows; stars: early-type; stars: formation; stars: individual: IRAS 18089–1732; techniques: polarimetric; techniques: spectroscopic
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/abs/2010ApJ...724L.113B [ID No:1]
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