Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...412..675r&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 412, no. 2, p. 675-683.
Astronomy and Astrophysics
Astrophysics
47
H Lines, Interstellar Magnetic Fields, Star Formation, Very Large Array (Vla), Zeeman Effect, Magnetic Field Configurations, Magnetic Flux, Radio Spectra
Scientific paper
The 100-microG field strengths and field reversals observed by Troland et al. (1989) in the -38 km/s feature of the W3 core are confirmed. The weak positive field observed by Van der Werf and Goss (1990) in the -46 km/s feature is confirmed as well. The statistical summing technique is used to determine the magnetic field throughout much of the W3 sample. A model of an initially uniform magnetic field which has been pinched by the collapse of the surrounding molecular cloud is proposed to explain the particular morphology of the field in the -38 km/s velocity component toward W3 A and W3 B. Measurements of the line-of-sight magnetic field south of W3 A and W3 B suggest that the magnetic field in this region has been distorted into a convex structure, perhaps by the expansion of the H II region NG 896.
Crutcher Richard M.
Goss William Miller
Roberts Daniel A.
Troland Thomas H.
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