Polarization in the Peculiar Radio Continuum Structure in NGC 7479

Details Polarization in the Peculiar Radio Continuum Structure in NGC 7479 Polarization in the Peculiar Radio Continuum Structure in NGC 7479

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20713805l&link_type=abstract

American Astronomical Society Meeting 207, #138.05; Bulletin of the American Astronomical Society, Vol. 37, p.1392

Other

1

Scientific paper

NGC 7479, a strongly barred nearby spiral galaxy that may have recently undergone a minor merger event, possesses a unique S-shaped spiral structure in radio continuum, with arms opening in a sense opposite to that of the optical spiral arms. Very curiously, this jet-like structure has not been detected in observations taken at any other wavelength, including the ionized gas. Our initial Effelsberg polarization observations at 3 cm show that the magnetic field vectors are aligned perpendicular to this structure, different from what one would expect if the structure originates in, and is driven by the nucleus. We emphazise that this radio continuum structure is, so far, unique among all spiral galaxies, and therefore provides an opportunity to learn about yet unidentified, possibly short-lived physical processes taking place in (merging) barred spiral galaxies. We present polarization observations taken at the Effelsberg radio telescope, together with VLA 3.5 cm D configuration and 22 cm C configuration radio polarization data. We discuss the magnetic field structure and Faraday rotation along the jet-like feature, and speculate on its spatial orientation, origin and reasons for its uniqueness.

Affiliated with

Also associated with

No associations

Rating

Polarization in the Peculiar Radio Continuum Structure in NGC 7479 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 Polarization in the Peculiar Radio Continuum Structure in NGC 7479, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polarization in the Peculiar Radio Continuum Structure in NGC 7479 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1286213