The magnetic field of the H II region NGC 6334A from Faraday rotation

Details The magnetic field of the H II region NGC 6334A from Faraday rotation The magnetic field of the H II region NGC 6334A from Faraday rotation

Feb 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012mnras.420..279r&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 420, Issue 1, pp. 279-282.

Astronomy and Astrophysics

Astronomy

1

Polarization, H Ii Regions, Ism: Individual Objects: Ngc 6334A, Quasars: Individual: J17204-3554

Scientific paper

We have studied the polarization characteristics and Faraday rotation of the extragalactic radio source J17204-3554, which appears projected on the north lobe of the Galactic H II region NGC 6334A. From observations made with the Very Large Array at 6.0 and 3.6 cm in three different epochs (1994, 1997 and 2006), we estimate a rotation measure of +5100 ± 900 rad m-2 for the extragalactic source. This large rotation measure implies a line-of-sight average magnetic field of B∥≃+ 36 ± 6 μG, the largest obtained by this method for an H II region. NGC 6334A is significantly denser than other H II regions studied and this larger magnetic field is expected on the grounds of magnetic flux conservation. The ratio of thermal to magnetic pressure is ˜5 in the range of values determined for more diffuse H II regions.

Affiliated with

Also associated with

No associations

Rating

The magnetic field of the H II region NGC 6334A from Faraday rotation 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 of the H II region NGC 6334A from Faraday rotation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The magnetic field of the H II region NGC 6334A from Faraday rotation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1365837