Astronomy Reports -- April 2005 Volume 49, Issue 4, pp. 259-342 Absorption in the H(93–95)alpha and H(78–79)alpha Recombination Lines in the HII Region of the Quasar 3C 345 L. I. Matveyenko, D. A. Graham, and J. A. Zensus pp. 259-268 Full Text: PDF (553 kB) The Generation of Low-Energy Cosmic Rays in Molecular Clouds Yu. A. Shchekinov pp. 269-273 Full Text: PDF (158 kB) Analysis of the Dynamical Instability of Several Multiple Stars with Weak Hierarchy R. Ya. Zhuchkov and V. V. Orlov pp. 274-283 Full Text: PDF (319 kB) Two- and Three-Dimensional Hydrodynamical Simulations of Mass Transfer in Semidetached Binaries with Explicit Radiative Cooling and Self-Absorption in Their Gaseous Envelopes V. V. Nazarenko, L. V. Glazunova, and L. S. Shakun pp. 284-294 Full Text: PDF (8068 kB) Evolution of the Masses of Neutron Stars in Binary Systems A. I. Bogomazov, M. K. Abubekerov, V. M. Lipunov, and A. M. Cherepashchuk pp. 295-308 Full Text: PDF (276 kB) A New Classification Scheme for T Tauri Light Curves N. Z. Ismailov pp. 309-315 Full Text: PDF (189 kB) Methanol Proplyds and a Double Protoplanetary System in the Constellation Norma I. E. Val'tts and S. Yu. Lyubchenko pp. 316-326 Full Text: PDF (326 kB) The Possible Escape of Electron Cyclotron Maser Radiation from Hot Stellar Coronas through a Window of Transparency V. V. Zaitsev, V. E. Shaposhnikov, and H. O. Rucker pp. 327-336 Full Text: PDF (296 kB) A Dynamo Wave near the Solar Equator V. M. Galitski, D. D. Sokoloff, and K. M. Kuzanyan pp. 337-342 Full Text: PDF (160 kB)