Zeeman Effect in OH Absorption Lines Toward the Galactic Center

Details Zeeman Effect in OH Absorption Lines Toward the Galactic Center Zeeman Effect in OH Absorption Lines Toward the Galactic Center

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.1419t&link_type=abstract

American Astronomical Society, AAS Meeting #211, #14.19; Bulletin of the American Astronomical Society, Vol. 39, p.762

Astronomy and Astrophysics

Astronomy

Scientific paper

Magnetic fields have been found to play an important role in a large range of processes that take place in the galactic center. For example, the gas dynamics of the inner few parsecs of the galaxy will be significantly affected if magnetic fields of only a few mG are present. Although many indications exist for the presence of magnetic fields in the galactic center region, the only direct method of determining field strengths is through the use of the radio frequency Zeeman effect. However, these efforts have not been conclusive due to limited telescope sensitivity and velocity coverage. In an effort to improve upon galactic center magnetic field strength measurements, we have used the VLA to examine the Zeeman effect in OH 1667 MHz absorption lines toward the galactic center. Our data have greater sensitivity and wider velocity coverage than previous studies. Quantitative results of our analysis are intended to address several unresolved issues about the nature and role of magnetic fields close to the galactic center. These include field strength variations throughout the region, changes in the sign of the field in various parts of the circumnuclear disk, and the effect of the field upon gas dynamics and upon the morphology of structures in the inner few parsecs of the galaxy. TT acknowledges support from NSF grant AST 03-07642.

Affiliated with

Also associated with

No associations

Rating

Zeeman Effect in OH Absorption Lines Toward the Galactic Center 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 Zeeman Effect in OH Absorption Lines Toward the Galactic Center, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zeeman Effect in OH Absorption Lines Toward the Galactic Center will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1475024