Cosmic-ray driven dynamo in the medium of irregular galaxy
Abstract
We investigate the cosmic ray driven dynamo in the interstellar medium of irregular galaxy. The observations (Chyży et al. 2000, 2003) show that the magnetic field in irregular galaxies is present and its value reaches the same level as in spiral galaxies. However the conditions in the medium of irregular galaxy are very unfavorable for amplification the magnetic field due to slow rotation and low shearing rate.
- Publication:
-
Cosmic Magnetic Fields: From Planets, to Stars and Galaxies
- Pub Date:
- April 2009
- DOI:
- 10.1017/S1743921309031317
- arXiv:
- arXiv:0901.1566
- Bibcode:
- 2009IAUS..259..557S
- Keywords:
-
- MHD;
- methods: numerical;
- galaxies: magnetic fields;
- galaxies: irregular;
- Astrophysics - High Energy Astrophysical Phenomena;
- Astrophysics - Galaxy Astrophysics
- E-Print:
- 2 pages, 2 figures, To be published in "Cosmic Magnetic Fields: From Planets, to Stars and Galaxies", K.G. Strassmeier, A.G. Kosovichev &