Astronomy Letters -- June 2001 Volume 27, Issue 6, pp. 345-409 The Ursa Major Supercluster of Galaxies: II. The Structure and Peculiar Velocities F. G. Kopylova and A. I. Kopylov pp. 345-352 Full Text: PDF (120 kB) Type Ia Supernovae: An Explosion in the Regime of a Convergent Delayed Detonation Wave N. V. Dunina-Barkovskaya, V. S. Imshennik, and S. I. Blinnikov pp. 353-362 Full Text: PDF (200 kB) Low State of the X-ray Burster SLX 1732-304 in the Globular Cluster Terzan 1 According to RXTE Data S. V. Molkov, S. A. Grebenev, and A. A. Lutovinov pp. 363-365 Full Text: PDF (60 kB) Relativistic Gravitational Collapse of a Cool White Dwarf with Allowance for the Neutronization Kinetics A. I. Voropinov and M. A. Podurets pp. 366-375 Full Text: PDF (113 kB) Detection of Optical Circular Polarization in the Herbig Ae Star WW Vul D. N. Shakhovskoi, O. S. Shulov, and E. N. Kopatskaya pp. 376-378 Full Text: PDF (45 kB) Close Binary Systems in Star-Forming Regions: EQ Ori in the Ori I Association M. M. Zakirov pp. 379-385 Full Text: PDF (107 kB) Hipparcos Trigonometric Parallaxes and the Distance Scale for Open Star Clusters A. V. Loktin and G. V. Beshenov pp. 386-390 Full Text: PDF (59 kB) An Astrometric Study of the Triple Star ADS 48 O. V. Kiyaeva, A. A. Kiselev, E. V. Polyakov, and V. B. Rafal'skii pp. 391-397 Full Text: PDF (98 kB) Preliminary Results of the Alignment and Hartmann Tests of the AZT-22 Telescope Z. Aslan, I. F. Bikmaev, É. A. Vitrichenko, R. I. Gumerov, L. A. Dembo, S. F. Kamus, V. Keskin, U. Kiziloglu, M. N. Pavlinsky, L. N. Panteleev, N. A. Sakhibullin, S. O. Selam, R. A. Sunyaev, I. Khamitov, and A. L. Yaskovich pp. 398-403 Full Text: PDF (120 kB) Orbital Evolution of Uranus's New Outer Satellites M. A. Vashkov'yak pp. 404-409 Full Text: PDF (159 kB)