The effect of supernova rate on the magnetic field evolution in barred galaxies K. Kulpa-Dybeł, N. Nowak, K. Otmianowska-Mazur, M. Hanasz, H. Siejkowski and B. Kulesza-Żydzik A&A, 575 (2015) A93 Published online: 03 March 2015 DOI: 10.1051/0004-6361/201323113