The magnetic field in the dense gas bordering W3(OH)

Details The magnetic field in the dense gas bordering W3(OH) The magnetic field in the dense gas bordering W3(OH)

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...286l..51g&link_type=abstract

Astronomy and Astrophysics 286L, L51-L54 (1994)

Astronomy and Astrophysics

Astrophysics

26

Interstellar Medium: Clouds: W3(0H), Radio Lines: Molecules (Oh), Masers, Magnetic Field

Scientific paper

We report the detection of a 3.1+/-0.4mG magnetic field in the dense crescent of gas bordering the W3(0H) compact HII region. The Zeeman splitting in the highly excited ^2PI_3/2_ J=7/2 F=3^+^-3^-^ transition of OH was observed, in absorption against the radio continuum, with the MPIfR 100-m telescope. The derived field strength is, by far, the strongest ever reported from thermally excited, i.e., non-masing gas; it compares with the average field derived from the cluster of OH maser spots, thought to arise from within the same dense layer of gas. A quantitative anlysis reveals that magnetic pressure dominates the clump energetics by nearly an order of magnitude over other processes. A possible scenario is discussed in terms of a bow-shock model, in which the magnetic field is compressed in the cooled post-shock layer preceeding the compact HII region.

Affiliated with

Also associated with

No associations

Rating

The magnetic field in the dense gas bordering W3(OH) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The magnetic field in the dense gas bordering W3(OH), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The magnetic field in the dense gas bordering W3(OH) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1862233