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1. http://www.ipa.nw.ru/conference/2002/sovet/PS/BATURIN.PS
... 8, ``Celestial Mechanics'', 2002 An approximate projection of confidence ellipsoids of space objects positions onto the celestial sphere A. P. Baturin Research Institute of Applied Mathematics and Mechanics, Tomsk, Russia The approximate method of calculation of a visible border of probable motion regions (PMR) for space objects (SO) has been considered. ... As a result, the simple analytical expressions for border points of PMR projection onto the celestial sphere have been obtained. ...
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Ссылки http://www.ipa.nw.ru/conference/2002/sovet/PS/BATURIN.PS -- 21.2 Кб -- 19.08.2002
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2. Linear polarization: wavelength dependence
... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...
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Ссылки http://www.astro.spbu.ru/DOP/8-GLIB/ASTNOTES/node7.html -- 18.9 Кб -- 19.11.2010
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3. Department of Solid State Physics MIPT
Chair of solid state physics . ... The Physics of Phonons . ... In the first part of the course “The Physics of Phonons” the dynamics of atoms in one- and three- dimensional crystalline lattices is considered in detail. The quasiparticle conception in solids, taking phonons as an example, is discussed; creation and annihilation operators of phonons, main properties of acoustic and optical phonons dispersion laws, density of phonon states. ... Crystalline state. ... Acoustic and optical phonons. ...
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Ссылки http://www.issp.ac.ru/kafedra/en/courses/maksimov.html -- 10.0 Кб -- 28.02.2014
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4. ApSA courses
Teaching courses . for student of the Department of Astrophysics and Stellar Astronomy . ... Geophysics and physics of the planets (Kurt, Panteleev) . ... Close Binary Stars . ... Solar Physics . ... This is introductory course for students of the third year of education which are familiar with elementary astronomy and general physics. ... The one-year course includes theory of radiation transfer, theory of internal stellar structure with account of binary systems with compact comapnions. ...
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Ссылки http://crydee.sai.msu.ru/asa/ASACours.htm -- 19.5 Кб -- 01.04.1997
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5. http://hea-www.harvard.edu/AstroStat/HEAD2004/discuss_jchiang.txt
Questions to Jim Chiang (paraphrasing): From Randall Smith: Q: Have you considered parallelizing the calculations to make the execution for the fitting faster? A: The present code hasn't been written with parallelization in mind, but this is something worth considering. Certain parts of the calculation have been factored out and precomputed outside of the parallelization. ... Where does it come from? A: It comes from the n_k! that you see in the Poisson likelihood (viz. p11) ...
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Ссылки http://hea-www.harvard.edu/AstroStat/HEAD2004/discuss_jchiang.txt -- 1.6 Кб -- 22.09.2004
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6. Effects to be Considered
. Previous slide . Next slide . Back to first slide . View graphic version .
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Ссылки http://xmm.vilspa.esa.es/docs/documents/Appendix/HE/tsld011.htm -- 2.1 Кб -- 12.12.2000
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7. Could This Be Considered The ... - an Astronomy Net Blackholes2 Forum Message
Blackholes2 Forum Message . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Post . ... Could This Be Considered The .. ... Post Message | ... www.astronomy.net . About Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
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Ссылки http://www.astronomy.net/forums/blackholes2/messages/4957.shtml -- 13.1 Кб -- 09.04.2016
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8. Description of algorithm
... The procedure of radiometer signal integration can be considered as a sort of reducing dimension of the initial sampling space, where the samples are the result of analog-to-digital conversion. ... The probability distribution of the signal and spikes is completely known. ... The quality of the considered algorithm could be also illustrated by Figure 2 . ... One could see the considered adaptive algorithm is preferable even by low degree of compression, because all spikes have been depressed. ...
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Ссылки http://mavr.sao.ru/hq/vch/Publications/Eng/html/NN/node2.html -- 11.5 Кб -- 28.12.2007
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/vch/Publications/Eng/html/NN/node2.html -- 11.5 Кб -- 11.09.2010
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/vch/Publications/Eng/html/NN/node2.html -- 11.5 Кб -- 02.10.2012
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/vch/Publications/Eng/html/NN/node2.html -- 11.5 Кб -- 11.09.2010
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/vch/Publications/Eng/html/NN/node2.html -- 11.5 Кб -- 02.10.2012
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9. Could gas giants be considered stars that failed to ignite? | Astronomy.com
... stars . ... Could gas giants be considered stars that failed to ignite? ... The distinction between gas giant planets and brown dwarfs ("failed stars") is a vague one. ... It depends on what gas giant youт??re looking at and how you distinguish a т??planetт?? from a т??failed star.т?? A gas giant found in orbit around a star might be considered a planet like Jupiter around the Sun. An isolated gas giant is probably a failed star. ... Get instant access to subscriber content on Astronomy.com! ...
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Ссылки http://www.astronomy.com/magazine/ask-astro/2011/06/a-fine-line -- 63.5 Кб -- 10.04.2016
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10. The Arcetri Spectral Code - E.Landi and M.Landini (1998)
The Arcetri Spectral Code (Landi and Landini 1998) allows to evaluate the spectrum of continuum and line radiation emitted by hot and optically thin plasmas in the spectral range 1-2000 Angstrom. The Code is composed by a large database of atomic data and transition probabilities for calculating spectral line emissivities and a suite of fortran programs able to evaluate free-free, free-bound and two-photon continuum radiation. ... To get he Arcetri Spectral Code related publications . ...
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Ссылки http://www.arcetri.astro.it/science/spettro/old/readme.html -- 6.0 Кб -- 30.10.1998
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11. AZ Key parameters, 1998
. Intervals of available data are coded by blue color. To read availability charts user should know the descriptor ("name") of the KP subset of interest. Table annotations include also number of version for each subset. Plot resolution is exactly one pixel per hour. Data are considered as available if at least one data point is present during that hour.
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Ссылки http://www.iki.rssi.ru/ibelova/az_cat8.htm -- 2.9 Кб -- 12.05.1999
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12. Multiple Scattering in Clumpy Media. II. Galactic Environments
We present and discuss the results of new multiple-scattering radiative transfer calculations for three representative types of galactic environments, filled with either homogeneous or two-phase clumpy dust distributions. ... The examination of the models concentrates on the study of UV/visual/near-IR reddening effects, the wavelength dependence of attenuation, and on the changes that arise from the transition from homogeneous to clumpy dust distributions in different star/dust geometries. ...
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Ссылки http://www.stsci.edu/~kgordon/papers/2000ApJ...528..799W.html -- 4.9 Кб -- 21.01.2016
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13. Space Research Institute (IKI) Seminar
... Future seminars . P a s t seminars . ... E.G. Berezhko (Yu.G.Shafer Institute of Cosmophysical Research and Aeronomy) . ... CR acceleration (generation) at the shocks, produced by supernova explosions, and the properties of nonthermal emission generated by CRs accelerated in supernova remnants are detaily discussed. ... Due to magnetic field amplification CR acceleration in supernova remnants provide the formation of the observed galactic CR spectrum up to the energy 10**17 eV. ...
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Ссылки http://www.iki.rssi.ru/galeev/abs_eng/e071101.htm -- 4.8 Кб -- 19.10.2007
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/galeev/abs_eng/e071101.htm -- 4.8 Кб -- 19.10.2007
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14. Modelling Spectro-photometric Characteristics of Nonradially Pulsating Stars
Next: Identification and Analysis of Binary Star Systems using Probability Theory . ... We present a computing code for modelling energy flux distributions, photometric indices and spectral line profiles of (non-)radially pulsating Main-Sequence stars. ... In the case of slowly rotating stars one can use the zero-rotation approximation to describe stellar pulsations. Such a model was used already by Cugier, Dziembowski & Pamyatnykh (1994) to study nonadiabatic observables of Cephei stars. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/daszynskaj.html -- 20.4 Кб -- 12.06.2006
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass97/daszynskaj.html -- 20.4 Кб -- 15.05.1998
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[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass97/daszynskaj.html -- 20.4 Кб -- 15.05.1998
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15. http://www.gao.spb.ru/english/as/j2014/presentations/perepelkin.pdf
Irregular phenomena in the Earth Pole oscillation process and temporal variations of geopotential Valery Bondarenko, Vadim Perepelkin s The observed irregular phenomena in the Earth Pole oscillation process are very variety. ... These phenomena indicated in the IERS data are the "abnormal" fluctuation of the Earth Pole coordinates which owing to changing of the geodynamical parameters gives negative result in interpolation and forecast of the first approximation mathematical model. ... Fig. ...
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Ссылки http://www.gao.spb.ru/english/as/j2014/presentations/perepelkin.pdf -- 900.8 Кб -- 30.10.2014
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16. http://www.mrao.cam.ac.uk/~anthony/latex/Duorah.ps
CP violating vacuum transition and big bang nucleosynthesis H.L.Duorah Gauhati University, Assam, India An analysis of primordial nucleosynthesis is made in the per- spective of transition in the early universe from quark-gluon to a hadronic phase in a CP violating vacuum. ... The ratio of number density of neutrons to protons is calculated for a transition temperature 200MeV f or various values of neutrino degeneracy, e = e =T; e being the chem- ical potential of the electron type neutrino). ...
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Ссылки http://www.mrao.cam.ac.uk/~anthony/latex/Duorah.ps -- 21.9 Кб -- 15.06.2000
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17. http://www.izmiran.rssi.ru/~ichertok/SEPs_radio/fig1.htm
... Correlation between ratio of peak fluxes of flare microwave bursts at 8.8 and 15.4 GHz (parameter S 9 /S 15 ) and spectral index of solar proton fluxes (parameter ?= lg (J 10 /J 100 ) calculated by measurements near the Earth in the >10 MeV and >100 MeV channels. ... The following events are marked by numbers (numeration according to Main Table): 41 - 14.07.2000, 43 - 12.09.2000, 59 - 26.12.2001, 63 - 15.07.2002, 81 - 20.01.2005. ...
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Ссылки http://www.izmiran.rssi.ru/~ichertok/SEPs_radio/fig1.htm -- 6.9 Кб -- 05.05.2009
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18. casacore: casa::SolarPos Class Reference
... Classes . ... Class List . ... casa . casa::SolarPos . ... Solar position class and calculations. ... SolarPos (const SolarPos &other) . ... operator() ( Double epoch) . ... Barycentric position of Earth. const MVPosition & casa::SolarPos::baryEarthDerivative . ... Barycentric position of Sun. const MVPosition & casa::SolarPos::barySunDerivative . ... Double casa::SolarPos::checkEpoch [private] . ... Double casa::SolarPos::checkSunEpoch [private] . ... Double casa::SolarPos::deval [3] [private] . ...
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Ссылки http://www.atnf.csiro.au/computing/software/casacore/casacore-1.2.0/doc/html/classcasa_1_1SolarPos.html -- 48.4 Кб -- 14.02.2011
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19. Astigmatism II
... The SDSS 2.5-m primary mirror is supported in a manner similar to the Apache Point Observatory 3.5-m telescope primary. ... The axial support is provided by 48 air pistons. The pistons have the same diameter thereby applying equal forces with the same air pressure. ... Each group supports a 120њ sector of the mirror. ... Figure 1: CAD drawing showing the 2.5-m primary mirror and the locations of actuators (green circles) These actuators apply forces (10*cos2 N) to correct astigmatism. ...
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Ссылки http://www.apo.nmsu.edu/Telescopes/SDSS/eng.papers/19980823_1ryAstigII/19980823.html -- 10.1 Кб -- 25.08.1998
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20. fit_help
The radio spectra measurement points are appoximated by curve for the calculation of spectral parameters (radio emission power, spectral index and others). ... Linear: . ... Linear + exp(+x): . ... The best curve is a curve with one of the above types that has the minimum deviation from the measurement points of the spectrum. ... Two external parts of curve have const spectral indexes equal to spectral indexes calculated in the extreme measurement point on the left/right. Weights for Fluxes: . ...
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Ссылки http://www.sao.ru/cats/~CLUSTERS/CLUSTERS/java/R_spectrum/help/fit_help.html -- 3.7 Кб -- 12.06.2001
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