Astronomy Letters -- December 2000 Volume 26, Issue 12, pp. 757-821 A Study of the Object ZGC 2315+03: A Candidate Polar Ring Galaxy G. M. Karataeva, V. A. Hagen-Thorn, and V. A. Yakovleva pp. 757-762 Full Text: PDF (377 kB) A 23[d over dot]2 Period in the Ultrahigh-Energy Gamma-Ray Flux from the Mk 501 Active Galactic Nucleus Yu. I. Neshpor pp. 763-764 Full Text: PDF (34 kB) X-ray Variability of the Pulsar Vela X-1 as Observed with ART-P/Granat A. A. Lutovinov, S. A. Grebenev, M. N. Pavlinsky, and R. A. Sunyaev pp. 765-771 Full Text: PDF (107 kB) Energy Release on the Surface of a Rapidly Rotating Neutron Star during Disk Accretion: A Thermodynamic Approach N. R. Sibgatullin and R. A. Sunyaev pp. 772-778 Full Text: PDF (92 kB) The Spin-X Wide-Field X-ray Monitor of the Spectrum–X–Gamma Astrophysical Observatory M. N. Pavlinsky, S. A. Grebenev, P. A. Mazov, I. A. Dekhanov, D. B. Ryvkin, R. A. Sunyaev, V. I. Surtaev, N. V. Mokrousov, A. G. Glushenko, S. I. Yampol'skii, and A. D. Novikov pp. 779-787 Full Text: PDF (308 kB) A Two-Dimensional Hydrostatically Equilibrium Atmosphere of a Neutron Star with Given Differential Rotation V. S. Imshennik and K. V. Manukovskii pp. 788-796 Full Text: PDF (121 kB) Monte Carlo Simulations of Supernova Light Curves and the Hypernova SN 1998bw N. N. Chugai pp. 797-801 Full Text: PDF (78 kB) Correlations between Parameters of Massive Cores in Interstellar Molecular Clouds I. I. Zinchenko pp. 802-805 Full Text: PDF (57 kB) Investigation of Dynamical Chaotization in Stellar Systems with Double Massive Centers Using the Ricci Curvature Criterion K. M. Bekaryan and A. A. Melkonyan pp. 806-808 Full Text: PDF (47 kB) Effects of Data Incompleteness on the Results of Fourier Analysis of Line-of-Sight Velocity Fields in Spiral-Galaxy Disks A. N. Burlak, A. V. Zasov, A. M. Fridman, and O. V. Khoruzhii pp. 809-820 Full Text: PDF (323 kB) Kopylov Ivan Mikheevich (October 14, 1928–July 29, 2000) p. 821 Full Text: PDF (48 kB)