Calcium/Sodium in the Milky Way . ... We map out calcium II sodium I absorption - corresponding to Fraunhofer H, K D lines - induced by both the interstellar medium and the circumgalactic medium of the Milky Way. ... We show that the abundance of sodium with respect to neutral hydrogen stays roughly constant in different environments, while that of calcium decreases with column density. ... Here we show the maps of calcium and sodium in the Milky Way based on the obtained data. ... Projects | ...

... 3, 2006 OBSERVATIONS OF THE BINARY STAR 61 Cyg ON THE 26 INCH REFRACTOR AT THE PULKOVO OBSERVATORY D. L. Gorshanov, N. A. Shakht, and A. A. Kisselev UDC: 524.38 Results from an analysis of a forty year series of photographic observations of the binary star 61 Cyg on the 26 inch refractor at the Pulkovo Observatory are presented. The orbit is constructed and the sum of the masses of the components is determined from the relative positions of the components. ...

Spinar Paradigm and Central Engine of the All Types Gamma Ray Bursts V.Lipunov1,2,3 & E.Gorbovskoy1,2,3 1Sternberg Astronomical Institute, Moscow, Universitetsky pr. ... A spinar is a quasi-equilibrium collapsing object whose equilibrium is maintained by the balance of centrifugal and gravitational forces and whose evolution is determined by its magnetic field. ... 10 Computed energy release during the process of collapse with low angular momentum and weak magnetic field. [pic] Fig .11. ...

Truebloodb,g, K. Zelayab Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43221 USA; bNational Optical Astronomy Observatory, 950 North Cherry Street, Tucson AZ 85719 USA; cCerro Tololo Inter-American Observatory, Casilla 603, La Serena ... USA ABSTRACT We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph ( KOSMOS ) for the 4-m Mayall ... Optical layout for KOSMOS and COSMOS. ...

Symbolic circuit-matrix processor and evaluator . Authors: Filaretov V.V., Shein D.V. (Ulyanovsk State Technical University, Russia) . SYMBOL is a symbolic-algebra package which in contrast to REDUCE, MACSYMA, MAPLE, MATHEMATICA, MathLAB, MathCAD and other known multi-purpose systems is especially intended for analysis of any lumped, linear, time-invariant circuit. ... English documentation: . ... Symbolic circuit processor . ... Symbolic matrix processor . ... Complex evaluator . ...

... Gaseous discs in NGC 252 and in NGC 4513 have decoupled kinematics, and the ionized gas of their rings is certainly excited by young stars. ... Two other, quite isolated S0 galaxies with the UV rings, IC 522 and NGC 446, demonstrate the shock-dominated gas excitation in the UV-detected rings, so their rings may probably have impact origin. ... NGC 4513. ... The UV rings in isolated galaxies IC 522 and NGC 446 may represent the consequences of central impact by a satellite from a highly inclined...

... We thank the Swift team for their rapid scheduling of this observation. ... 2455705.20851 V 14.15 0.03 2455707.83079 V 14.10 0.03 2455710.84028 V 13.53 0.02 2455713.64631 V 13.66 0.02 2455714.65479 V 14.11 0.03 2455714.71823 V 14.12 0.02 2455714.78596 V 14.20 0.02 2455717.39593 V 14.37 0.03 2455726.62861 V 14.83 0.04 2455727.16343 V 14.57 0.04 2455730.50586 V 14.57 0.03 2455730.57329 V 14.56 0.03 2455730.70360 V 14.66 0.04 2455738.32865 V 14.00 0.02 2455742.86146 V 14.21 ...

... Ассоциация была создана в 2002 году астрономами-любителями: . ... Астрономией интересуюсь с 1997 года: визуальные наблюдения планет Солнечной системы и их спутников, затмений, история астрономии.) ... Обновление от 1 августа 2008: видео затмения . ... 25 сентября 2005: В результате компьютерного моделирования Михаил Маслов (Новосибирск) делает прогноз метеорной активности для метеорных потоков Драконид и Леонид 2005 года: . ... Гелиос рекомендует: Дом из сэндвич панелей . ...