The Lorentz force in atmospheres of CP stars: θ Aurigae D. Shulyak, G. Valyavin, O. Kochukhov, B.-C. Lee, G. Galazutdinov, K.-M. Kim, I. Han, T. Burlakova, V. Tsymbal and D. Lyashko A&A, 464 3 (2007) 1089-1099 Published online: 22 January 2007 DOI: 10.1051/0004-6361:20064998