Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005assl..329p..12c&link_type=abstract
Starbursts: From 30 Doradus to Lyman Break Galaxies, Held in Cambridge, UK, 6-10 September 2004. Edited by R. de Grijs and R.M.
Astronomy and Astrophysics
Astrophysics
2
Scientific paper
We report on observations of magnetic fields in actively star-forming galaxy systems. Strong magnetic fields are not only observed in spirals but recently have also been observed in irregulars. In such cases (e.g., NGC 4449, IC 10) the radio emission is a good tracer of current star formation and weak external interactions. Strong interaction-triggered star formation could explain the magnetic fields we studied recently in the Antennae system. The mean total magnetic field in both merging galaxies is about twice stronger than in normal spirals but is also more chaotic, implying tangling of the regular component in regions with interaction-enhanced star formation. The southern part of the overlap region is a particularly intense merger-triggered starburst. Here, highly disordered magnetic fields reach a strength of 30μG, even larger than in both individual galaxies. They are due to either compression of the original fields pulled out from the parent disks or due to local action of a turbulent dynamo. We also find a possible flow of magnetized plasma along the southern tidal tail into intergalactic space.
No associations
LandOfFree
Magnetic fields and starbursts: from irregulars to mergers 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 Magnetic fields and starbursts: from irregulars to mergers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic fields and starbursts: from irregulars to mergers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1701700