High Angular Resolution Study of the Ion and Neutral Spectra as a Probe of the Magnetic Field Structure

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

1

Star Formation, Magnetic Fields

Scientific paper

We present the observations and analysis of the spectral linewidths of neutral and ion species across the DR21(OH) core to investigate the cyclotron interaction as a probe of magnetic fields. It has been suggested that under average interstellar field strengths the cyclotron interaction between ions and magnetic fields is strong enough to narrow the linewidth and suppress the line wings in the ion spectra. We have obtained high spatial resolution spectral line images of H13CN and H13CO+ at 3 mm in DR21(OH) with the Millimeter Array of the Owens Valley Radio Observatory. Our results show that in the eastern parts of the DR21(OH) core the spectral linewidth of the ions is narrower than that of the neutrals. We use our results, along with the existing Zeeman and dust/CO polarization data on small scales, to derive the 3D magnetic field structure. We obtain a field strength of 0.44 ± 0.12 mG with inclination of 36° to the line of sight, directed toward the observer, and a position angle of -75° in the plane of the sky.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

High Angular Resolution Study of the Ion and Neutral Spectra as a Probe of the Magnetic Field Structure 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 High Angular Resolution Study of the Ion and Neutral Spectra as a Probe of the Magnetic Field Structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High Angular Resolution Study of the Ion and Neutral Spectra as a Probe of the Magnetic Field Structure will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1857440

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.