Reciprocity relation in checking calculations of the optical properties of non-spherical particles V.G. Farafonov St.Petersburg University of Aerocosmic Instrumentation, St.Petersburg, 190000, Russia and V.B.Il'in Astronomical Institute, St.Petersburg University St.Petersburg, 198504, Russia ABSTRACT There are many methods to solve the problem of light scattering by non-spherical particles , but only the separation of variables method ( ... Michel B., Farafonov V.G. (2000) J. Quant. ...
... Recent Topics . ... MAO main . ... The third-order space-by-time relation . ... Тема: The third-order space-by-time relation . ... The mass m experiences a gravity force toward the sun and . ... will experience the Coriolis force or Coriolis acceleration. ... differentiated space-by-time twice and discovered equation2. ... If one differentiates . ... time differentiation of space-by-time. ... third-order space-by-time relation. ... understand the third-order space-by-time relation. ... MAO NASU . ...
... High redshift radio galaxies . ... Verkhodanov O.V., Kopylov A.I., Zhelenkova O.P., Verkhodanova N.V., Chernenkov V.N., Parijskij Yu.N., Soboleva N.S., Temirova A.V. 2000. ... Verkhodanov O.V., Kopylov A.I., Parijskij Yu.N., Soboleva N.S., Temirova A.V. "Color ages of parent galaxies of high redshift radio sources", in Proc. XV Conf. on "Aktualnye problemy vnegalakticheskoi astronomii" ("Current Problems of Extragalactic Astronomy"), Pushchino, May 25--29, 1998, printed in Pushchino Sci. ...
Guest Editorial , July 2006 . Past ? Present ? Future . ... SETI, the quest for reasonable signals from Space, is aimed at the Past. ... From here on Earth, we can say with good reason that conducting both searches (SETI) and transmission (METI) of reasonable signals, we appear poised just halfway between the Past and the Future: namely, in the Present! ... This editorial was submitted in response to Their Past, Our Future , by SETI League executive director emeritus H. Paul Shuch. ...
... We guess it's almost impossible to create the site nowadays where all space relative philatelic materials (postage stamps, stationary, postal marks etc.) would be registered and presented. ... We tried to make such a step in April 2005, placing at the site first images of postage stamps with portraits of astronauts (cosmonauts, spacionauts, taikonauts:). ... All illustrative material (or simply speaking, all scans of stamps) are grouped in four sections: Countries , Years , Astronauts and Flights . ...
The integers $ a_n=\sum_{k=0}^n{\binom nk}^2{\binom{n+k}k}^2, n=0,1,2,... $ appear as denominators of rational approximations to $\zeta(3)=\sum_{k=1}^\infty k^{-3}$ in Apery's proof of the irrationality of $\zeta(3)$. The sequence satisfies a polynomial recursion, namely, $ (n+1)^3a_{n+1}-(2n+1)(17n^2+17n+5)a_n+n^3a_{n-1}=0$, where $n=0,1,2,...$, and admits several curious congruence properties. ... Site design by Paul Zinn-Justin (2005) ...
The purpose of the space-physics lab exercises is to introduce the students to the methods of the measurements, to the modern conception of near-Earth space structure and the physical processes and phenomena occured in it. ... At present the reasearches and the teachers of the University and of other institutes participating in the project continue development of the the special space-physics lab exercises, and they are interested in your ideas concerning the future exercises. ...
Moore Observatory is located on the 200-acre Horner Wildlife Refuge in Oldham County, Kentucky. ... The observatory is named for Walter Lee Moore, Professor of Mathematics at UofL from 1929 to 1967. Dedication ceremonies were held on November 8, 1978 with introductions by Dr. John A. Dillon, Jr., then Vice President for Academic Affairs at UofL. The Moore Telescope dedication was made by Dr. John F. Kielkopf, who is the observatory's director. ... Dr. Moore . The 21-inch Moore Telescope . ...
... GCN 8471 | ... TITLE: GCN CIRCULAR NUMBER: 8516 SUBJECT: GRB 081102: MASTER refind and final results DATE: 08/11/11 15:50:10 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.Parkhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State GCN Circ 8470, Lipunov et al., ...
astro-ph/0207407 . ... Comments: 15 Pages, 1 figure, LaTex with Astronomy Astrophysics macro package, submitted to A , related papers at http://www.aoc.nrao.edu/~egreisen . astro-ph/0207413 . ... Comments: Consequent to Paper I: "Representations of world coordinates in FITS". 45 pages, 38 figures, 13 tables, aa macros v5.2 (2002/Jun). ... Commets: to appear in SPIE proceedings vol. 4846, 11 pages, 5 figures . ... Commets: 10 pages, 9 figures Accepted for publication in Astronomy Astrophysics . ...
... Maps of six sources (0420+022, 0420-014, 1308+326, 1345+125, 1803+784, and DA 193) obtained with milliarcsecond resolution are presented and discussed, together with their broadband (122 GHz) spectra obtained on the RATAN600 radio telescope at epochs close to those of the VLBI observations. ... The image (Fig. 5) shows that the source structure at 18 cm is compact, consisting of a VLBI core and two jet components, with the outer component lying 5 mas (30 pc) to the northwest of the core ( = 54 ). ...
Instrument . ... Scanning TV-sensor with on-board data recording system for global coverage mode . ... recording, direct transmission . ... IR-radiometer for global coverage and direct data transmission modes . ... The scientific instrument package onboard the Meteor-3 spacecraft provides for regular instant acquisition of images of cloudiness and Earth surface in visible and infra-red bands, data on air temperature and humidity, sea surface temperature and clouds temperature. ...
... Field of interest: data analysis and interpretation of X-ray observations of BHC and NS systems, astrophysics of compact objects and related phenomena: X-ray , optical and radio observations , shocks and stellar winds, emission mechanism, the spectral and timing analysis of the X-ray emission from microquasars ( signature of accreting BH), atoll- and Z-sources ( signature of accreting NS), modeling of INTEGRAL images % . ...
Characterization of Precipitable Water Vapor at the TMT Candidate Sites in Northern Chile: The Importance of Surface Data A. OtАrola T. Travouillon, M. SchЖck, S. Els, R. Riddle W. Skidmore, R. Dahl, D. Naylor, R. Querel Kislovodsk , October 4-9 , 2010 1 Outline Location of sites tested by TMT in northern Chile Synoptic-scale meteorological conditions Monitoring of ... Kislovodsk, October 4-9, 2010 16 Results: Overall & Seasonal Site Alt. (m) PWV (mm) GOES PWV (mm) Surf. ...
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... 2. (a) Metallicity function and relations between (b) metallicity and radial velocity, (c) metallicity and maximum distance from the Galactic plane,and (d)metallicity and variability period for RR Lyrae variables in the initial sample.The curve in the first graph is the maximum-likelihood approximation of the distribution using a sum of two normal curves with the indicated means,dispersions,and total numbers. ... next figure | privious figure . ...