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1. Circular polarization: change of sign
Next: Scattering properties Up: Polarization properties (transmitted radiation) Previous: Linear polarization: wavelength dependence . Traditionally, the main problem considered in connection with circular interstellar polarization is the meaning of the wavelength where changes the sign . ... This is also demonstrated by Fig. 19 (lower panel) which shows the wavelength dependence of the factors of linear and circular polarization for particles of magnetite as was done by Shapiro ([ 1975 ]). ...
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Ссылки http://www.astro.spbu.ru/DOP/8-GLIB/ASTNOTES/node8.html -- 13.2 Кб -- 19.11.2010
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2. MONTE-CARLO
... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...
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Ссылки http://ip.rsu.ru/~zabotin/posters/mont_car/mont_car.htm -- 12.8 Кб -- 02.02.2007
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3. Arcetri Solar Physics Group: Solar Polarimetry
... The polarimetry group at the Arcetri Observatory has been working for several years, mainly from the theoretical-interpretative side, on the polarization of the radiation emitted by objects of astrophysical interest. ... E. Landi Degl'Innocenti "The physics of polarization" in "Astrophysical Spectropolarimetry", J. Trujillo Bueno, F. Moreno Insertis, F. Sanchez (eds.), Cambridge University Press, 1. ... E. Landi Degl'Innocenti "The Zeeman effect: applications to solar physics" Astron. ...
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Ссылки http://www.arcetri.astro.it/science/solar/polarimetry.html -- 8.2 Кб -- 15.01.2003
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4. Theoretical Astrophysics
Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...
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Ссылки http://space.univ.kiev.ua/courses/teor_astroph_e.html -- 8.7 Кб -- 23.02.2005
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5. INR RAS - Baksan Neutrino Observatory (BNO)
BNO is in Baksan Gorge at the Northern Caucasus . ... The Baksan Underground Scintillation Telescope (BUST) of volume 3000 cubic centimeters at a depth of more 300 m. The mountainous plant ANDYRCHI to register wide air showers located over BUST on the area 5*10 4 square metres. The complex of surface plants KOVER including a large muon detector, a scintillation telescope and a neutrino monitor meant for studying the hard component of cosmic rays and wide air showers. ...
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Ссылки http://www.sao.ru/hq/grb/conf_2015/BNO.html -- 4.5 Кб -- 10.04.2016
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/hq/grb/conf_2015/BNO.html -- 4.5 Кб -- 09.04.2016
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/hq/grb/conf_2015/BNO.html -- 4.5 Кб -- 09.04.2016
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6. Armagh Observatory
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... We present the numerical simulations for an electron-beam-driven and loss-cone-driven electron cyclotron maser (ECM) with different plasma parameters and different magnetic field strengths for a relatively small region and short time-scale in an attempt to interpret the recent discovered intense radio emission from ultracool dwarfs. ... A wide frequency band should therefore be covered by future radio observations. ...
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Ссылки http://star.arm.ac.uk/highlights/2012/600.html -- 6.2 Кб -- 24.04.2012
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7. The AstroStat Slog particle filter
... Posts tagged ?particle filter? ... Astronomers have developed their ways of processing signals almost independent to but sometimes collaboratively with engineers, although the fundamental of signal processing is same: extracting information. ... This particular issue of IEEE signal processing magazine may shed lights for astronomers interested in signal processing and statistics outside the astronomical society. IEEE Signal Processing Magazine Jul. ... ArXiv] 3rd week, Dec. ... Entries RSS . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/tag/particle-filter/index.html -- 23.9 Кб -- 01.03.2014
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8. Spectral energy distribution
... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...
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Ссылки http://mavr.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
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9. Solar Physics Department
... B.V. Somov . head of the department . ... room 80 . ... senior research felow . ... research felow . ... research fellow . ... Our department performes the following most perspective studies: . Special analytical and numerical experimental investigations of the solar plasma involved in the magnetic reconnection process at the Sun. ... Head of the seminar: Prof. B.V. Somov. ... 27 September 2013 The Solar Physics Department was visited by journalists of the leading Russian TV channel "Vesti-1". ...
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Ссылки http://sun.sai.msu.ru/index_eng.html -- 6.3 Кб -- 19.10.2015
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10. Space Scientific and Education project of Lomonosov Moscow State University
... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...
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Ссылки http://cosmos.msu.ru/eng/sciprog.html -- 11.1 Кб -- 05.12.2005
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11. Lecture Series 2010-2011 ? ?Particle Physics at the LHC and Cosmology? by
Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Particle Physics at the LHC and Cosmology? by Michael Tuts . ... Lecture Series 2010-2011 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...
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Ссылки http://www.aaa.org/lectures/lecture-series-2010-2011/lecture-series-2010-2011-particle-physics-at-the-lhc-and-cosmology-by-michael-tuts/ -- 99.5 Кб -- 10.04.2016
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12. http://lnfm1.sai.msu.ru/~rastor/Ralf_Bender/imprs_chapter_1_2007_matter_and_radiation.pdf
Page 1 I*M*P*R*S on ASTROPHYSICS at LMU Munich Astrophysics Introductory Course Lecture given by: Ralf Bender and Roberto Saglia in collaboration with: Chris Botzler, Andre Crusius-WДtzel, Niv Drory, Georg Feulner ... , Ulrich Hopp, Claudia Maraston, Michael Matthias, Jan Snigula, Daniel Thomas Powerpoint version with the help of Hanna Kotarba Fall 2007 IMPRS Astrophysics Introductory Course Fall 2007 ... For stars, the received energy can be neglected. ...
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Ссылки http://lnfm1.sai.msu.ru/~rastor/Ralf_Bender/imprs_chapter_1_2007_matter_and_radiation.pdf -- 1223.8 Кб -- 03.03.2008
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13. Истомин Яков Николаевич (ФИАН)
... Acceleration of particles in the vicinity of a massive black hole We propose a two-step mechanism for charged particle acceleration in the magnetosphere of a massive black hole surrounded by an accretion disk. Particles first gain energy by stochastic process during the accretion phase. It is shown that effective proton acceleration up to energies eV is possible in the turbulent magnetized accretion disk. ...
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Ссылки http://hea.iki.rssi.ru/conf/hea2007/abstracts/node28.html -- 5.3 Кб -- 19.12.2007
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14. http://selena.sai.msu.ru/Shev/Publications/ms34/MS064.pdf
... 1988) MERCURY Dollfus & Auriere(1974) Veverka et al. ... Lunar Crater name Ptolemaeus Bullialdus Gassendi crater maturity Im Is/FeO 1.452 68 1.451 68 1.415 75 Mercurian wavelength dependence of Pmax and lunar data 1,6 1 1,4 3 1,2 1 5 0,8 0,6 0,4 0,2 0 2,2 2,4 2,6 2,8 3 3,2 log l, (nm) Fig. 3 log Pmax, (%) 2 4 6 Conclusions: Maturity of the soil on the Mercurian surface in scale of whole disk is similar to space weathering of the soil in large old craters on the lunar highland. ...
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Ссылки http://selena.sai.msu.ru/Shev/Publications/ms34/MS064.pdf -- 78.3 Кб -- 06.10.2008
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15. East Siberian Center for the Earth's Ionosphere Research. Incoherent Scatter
Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Antenna system . ... The Irkutsk incoherent scatter radar is one of the world's nine active radars which give the opportunity to investigate ionosphere by the incoherent scatter method. ... Antenna gain coefficient . ... Antenna . ... Two antennas . ... To get an idea what station "Dnepr" antenna system looks like, let us consider some of the radar views which are given by the photographs General view and Side view . ...
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Ссылки http://rp.iszf.irk.ru/esceir/isr/isradaren.htm -- 12.1 Кб -- 19.01.2013
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16. http://cgm.iszf.irk.ru/irkt/info.htm
... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...
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Ссылки http://cgm.iszf.irk.ru/irkt/info.htm -- 6.1 Кб -- 28.11.2002
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17. A New Stable Method for Long-Time Integration in an N-Body Problem
Next: Imaging by an Optimizing Method . ... A big advantage of this numerical integrator is its stability: the error in the semi-major axis and the eccentricity depends only on the step size and does not grow with an increasing number of time steps. ... As the integration time increases, the numerical results become more contaminated by various errors. ... A new symplectic integrator produces no secular truncation errors in the actions of a Hamiltonian system. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/taidakovat.html -- 9.4 Кб -- 23.06.1998
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18. EDM (ImageJ API)
... public class EDM . ... Euclidean Distance Map: The value of each pixel is the distance to the nearest background pixel (for background pixels, the EDM is 0) - Ultimate Eroded Points (UEPs) are maxima of the EDM. ... static int . ... Unit in old make16bitEDM: this pixel value corresponds to a distance of one pixel. static int . ... int . ... For compatibility with previous versions of ImageJ only. public FloatProcessor makeFloatEDM ( ImageProcessor ip, int backgroundValue, boolean edgesAreBackground)...
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Ссылки http://www.astro.louisville.edu/software/astroimagej/imagej/api/ij/plugin/filter/EDM.html -- 31.4 Кб -- 02.12.2010
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19. http://vega.inp.nsk.su/~inest/workbbeam/cbb.ps
SLIDE 1 Coherent beambeam e#ects study. ... He has shown that a finite length (in other words equal to # # ) of colliding bunches can lead to the coupling of synchrobetatron modes in the beambeam system, and thus a headtail type instability of colliding bunches may arise. ... These modes have been observed in di#erent machines. ... SLIDE 5 Figure shows the dependence of the measured and calculated synchrobetatron mode tunes on the beam current for equal electron and positron bunch intensities. ...
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Ссылки http://vega.inp.nsk.su/~inest/workbbeam/cbb.ps -- 70.9 Кб -- 18.06.2001
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20. Cosmic Rays from Outer Space | Astronotes
... Space Flight . ... It took an accidental dose of cosmic rays to make them fantastic.( ... Air showers ensuing from very-high-energy cosmic rays which can enter EarthтАЩs atmosphere from multiple directions.( ... The latest cosmic ray research:composite sky catalogue using 2 years of Fermi Gamma-ray Space Telescope data.Depicting 1873 objects in total, the brightest patches represent sources with the highest gamma-ray count (at energies greater than 1 billion GeV or electron volts).( ... Astronotes ....
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Ссылки http://www.armaghplanet.com/blog/100-years-of-cosmic-rays.html -- 57.1 Кб -- 09.04.2016
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