. Families of periodic solutions of the planar restricted three-body problem and their application at designing the orbit for the space radio telescope . A. B. Kreisman . Astro Space Center of Lebedev Physical Institute of Russian Academy of Sciences, Moscow, Russia Abstract: . No abstract Key words: . Very Long Baseline Interferometry (VLBI), celestial mechanics, periodic solutions, planar restricted three-body problem, space radio telescope.

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

... Future seminars . ... Global and regional aspects of the solar and cosmophysical factor influence on the atmosphere, climate and environment ". ... Institute of North Industrial Ecology Problems, Kola Science Center RAS, Apatity, Murmansk region) . ... The report devoted to the problem of solar activity and other cosmophysical factor (cosmic rays, cosmic dust, comet material) influence on human environment (climate, ozone layer, atmospheric parameters and biosphere including human being). ...

... Application of Bifurcation Analysis for the Detection of Invariants in Large Dimensional Complex Systems " . Elena Surovyatkina ( Space Research Institute of Russian Academy of Scien ces) . ... The difficulties in the investigation of large dimensional complex systems and the control of the complex processes are well known. The traditional application of statistical methods to complex systems solves the problems of analysis of the most typical and mass processes and its dynamics in time. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Chirp ionosonde main technical characteristics . ... Linear frequency modulated continuous signals sounding method is relatively simple and has wide application in various special-purpose systems. ... Chirp signals which are applying for ionosphere channel diagnostics usually have10KHz/s -- 1MHz/s. We must point out that under modulation speed increasing there is an increase in noise suppression and resolution power. ...

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... Up: Algorithms . ... The imaging problem can be described as an optimizing problem in mathematics. ... Computer simulations of rotating modulation collimator imaging show that the quality of images from this method is better than that from the traditional cross-correlation method. ... The imaging problem is: . ... The results show that this algorithm can be used in the imaging problem and usually results in a better image than that obtained from a traditional method such as cross-correlation. ...

... HST . ... A hardware problem in the HST power system has caused overcharging of 2 of the 6 on-board batteries, which, if nothing was done, could result in battery overheating and possible failure. ... In order for HST to remain power positive, the maximum sustained sun to solar array normal angle (sun incidence angle) has been reduced from 25 to 20 degrees. Also, in the past the arrays have been allowed to go up to a 35 degree sun incidence angle for brief periods of time (up to 4 orbits). ...

Proceedings of the Particle Physics and Early Universe Conference (PPEUC). For this paper: postscript PPEUC CMB index 1 Likelihood Analysis.. ... Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, U.K. Max Tegmark . ... We discuss the problems of applying Maximum Likelihood methods to the CMB and how one can make it both efficient and optimal. ... A much fuller account of most of this work is available ( Tegmark, Taylor & Heavens (1997) ). ...

... научных трудов Ширмина Г.И. ћ Luk'yanov, L. G.; Shirmin, G. I.(2007). Sundman surfaces and Hill stability in the three-body problem. Astronomy Letters, Volume 33, Issue 8, pp.550-561 . ... Astronomy Letters, vol. 29, p. 635-639 . ... Astronomy Letters, vol. 29, p. 274-277 (2003) . ... Astronomy Letters, Volume 28, Issue 6, June 2000, pp. ... Problems of celestial mechanics and stellar dynamics, p. 49 - 53 . ... Lagrangian points in the problem of the search for extraterrestrial civilizations. ...

... Optical observations of pulsars have been restricted to a small handful of objects which are probably not representative of the pulsar population. The main problem is that pulsars are optically faint with short radiative lives. The talk will review current Irish research in pulsars. ... The talk will conclude with a discussion of the implications for pulsar astronomy with the proposed ESO/EU 42 m optical telescope due to be commissioned 2017. ... Last Revised: 2007 January 31st . ...

Multi-Wavelength investigations of the Sun and modern problems of solar activity . ... Conference participants: . ... Altyntsev A.T. altyntsev@iszf.irk.ru . ISZF . ... Ussuriysk Astrophysical Observatory RAS . ... Pulkovo Observatory . ... Vasil'eva V.V. solar@narzan.com . MAS Pulkovo Observatory . ... Crimean Astronomical Observatory . ... grechnev@iszf.irk.ru . ... vgrig@iszf.irk.ru . ... Grigor'eva S.A. sgrig@iszf.irk.ru . ... Gubin A.V. gubin@iszf.irk.ru . ... ivanoff@iszf.irk.ru . ...

Independent University of Moscow . Institute for Problems in Mechanics (RAS) . Algorithmic problems in low-dimensional topology, knot theory, analysis on manifolds with singularities. February 11, 2003 "Undecidable problems in low-dimensional topology" (M.M. Postnikov seminar) Moscow. March 28, 2003 "Viro-Turaev invariants folloroing Matveev" (Natanzon-Sheinman-Schwartzman seminar), Moscow. ... Moscow, 1997 (in Russian, jointly with V.Prasolov), 352 pages. ...

Multi-Wavelength investigations of the Sun and modern problems of solar activity . ... Conference participants: . ... Altyntsev A.T. altyntsev@iszf.irk.ru . ISZF . ... Ussuriysk Astrophysical Observatory RAS . ... Pulkovo Observatory . ... Vasil'eva V.V. solar@narzan.com . MAS Pulkovo Observatory . ... Crimean Astronomical Observatory . ... grechnev@iszf.irk.ru . ... vgrig@iszf.irk.ru . ... Grigor'eva S.A. sgrig@iszf.irk.ru . ... Gubin A.V. gubin@iszf.irk.ru . ... ivanoff@iszf.irk.ru . ...

... 13 1000000000 2500000000 2000000000 500000000 1500000000 0 -1500000000 -1000000000 -500000000 0 500000000 1000000000 1500000000 1000000000 500000000 -500000000 0 -1500000000 -1000000000 -500000000 -1000000000 -500000000 0 500000000 1000000000 1500000000 -1500000000 -1000000000 2500000000 2000000000 1500000000 1000000000 500000000 0 -2000000000 -1500000000 -1000000000 -500000000 0 500000000 1000000000 -500000000 -1000000000 . ... 2012. ... URL: http://www.asc.rssi.ru/millimetron/millim.htm 8. ...

. Next: Abstract . On the problem of Super Ratio in Astrophysics . V.M. Lipunov . Sternberg Astronomical Institute, . Universitetskij pr., 13, 119899, Moscow V-234, Russia . E-mail: lipunov@sai.msu.ru . Abstract . Fermi's Paradox . Simple Universe . Tsiolkovskii's Paradox . Scientifically discovered God . Endlessly Complicated World . References . About this document ... Lipunov V.M. Sun May 3 16:35:20 MSD 1998

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... V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Universitetsky 13, Moscow 119899, Russia, shev@sai.msu.ru . ... 1.Sternberg State Astronomical Institute, 119899, Moscow, Russia. shev@sai.msu.ru . ... V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Moscow 119992, Russia, shev@sai.msu.ru . ... 119992 Moscow, Russia; . ... 2Sternberg Astronomical Institute, Moscow University, Moscow, 119992, Russia, . ... Moscow, 119992, Russia shev@sai.msu.ru . ...

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... Paul J. Francis . ... 3mm] Joint appointment with the Research School of Astronomy and Astrophysics . I present a way of adapting the techniques of Problem Based Learning (PBL) to undergraduate astronomy classes. A fictitious astronomical mystery is invented, and presented to the class. The students, working in small groups, propose observations to crack the mystery. ... Two case studies of this technique are presented and discussed. ... Student Briefing . Running the Exercise . ...