... Meta Index / Home Page / Poissonian statistics and source / Source detection limits . ... as well. subroutine minDetPoissonCountsVector(bkgCounts, likelihoodCutoff , detectableSrcCounts, detectableSrcCountsUncert, srcCountRatios , status) real (single), intent (in) :: srcCountRatios (:), bkgCounts(size( srcCountRatios )), likelihoodCutoff real (single), intent (out) :: detectableSrcCounts( size( srcCountRatios )) real (single), intent (out) :: detectableSrcCountsUncert( size( ...

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• Description

. The February 17, 2000 Event . Halo CME and complicated soft X-ray corona . Modified 195 A movie . EUV dimmings: fixed difference movie . Running difference movie . Comparison with H-alpha heliogram and EUV structures . Light curves in some 53x53 arcsec areas . Illustrations on Dimmings in Four EUV Lines According to SOHO/EIT Data for this event are presented here . To main page

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Light scattering by multi-layered ellipsoidal particles in quasi-static approximation 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 Calculation of light scattering by finite size non-axisymmetric inhomogeneous particles is a complicated problem whose solution by the exact methods (e.g., the Discrete Dipole ... Spectr. ...

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• Geometrical optics approximation (GO)

... Bojan Nikolic web pages (r. 329) . ... The new document explaining how to get and run the code: Using casata (i.e., how to get it without revision control!) ... casata is a thin layer on top of CASA which implements commonly used procedures for analysis of data from aperture array telescopes at radio frequencies. ... One way to think of casata is as a CASA data reduction script but with an attempt at careful software engineering. ... Contributing to casata . ... casata: CASA Tools for Analysis . ...

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• Bojan Nikolic -- Talk at the University of Cambridge
• PPT Slide
• James Gordon - Resources

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

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... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

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... In the presence of only uniform magnetic field B , the motion of a charged particle can be described with gyration about the guiding center and motion along the field line. ... In the precence of both magnetic and electric fields, the equation of motion for charged particle (mass m, charge q) is m d v /dt = q ( E + v x B ). ... Because v is independent of the mass and sign of the charge, it is the same for negatively and positively charged particles, and does not create electric current. ...

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• Plasma waves [Oulu]
• Space Physics Group of Oulu
• The Theorem of Pythagoras

. Institute of Radioengineering and Electronics of Russian Academy of Science . Laboratory of . Electromagnetism . Head: prof. Vadim A. Kaloshin, e-mail: vak@cplire.ru . Staff: 12 persons . Phone: (095)2034836, Fax: (095)2038414, E-mail: vak@cplire.ru .

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• Project 6 - RFBR - Multilayer epitaxial heterostructures of high-temperature
• Integrability of Hamiltonian Systems. IRE RAS.

. Previous slide . Next slide . Back to first slide . View graphic version .

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... Actual stars are expected to be more complicated than these simulations. ... The spot may be entirely visible most of the time (one would observe a prolonged flux minimum low), and then part of it may disappear over the horizon briefly and then return (slow rise and then fall back to constant level). ... With the set of observations taken here, I have information available from several comparison stars and color information. ... The period found must be consistent with the data from any given night....

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• The AstroStat Slog Blog Archive [ArXiv] Matching Sources, July 11, 2007
• The Chandra Multiwavelength Project (ChaMP)
• Fixing and Freeing Region Markers

... Pierr Simone Laplas.) For his bright intellect and an outstanding achievements in several sciences (astronomy, physics, mathematics) Laplas was called "a French Newton". He became a consistent follower of Newton and rut a task before himself of explaining the planets motion, the movement of their satellites, the ocean rising tides in the Earth and a complicated motion of the Moon. Laplas showed that the planets inequalities should be periodical (based on Newton's gravitation principal). ...

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• antichnoste
• radiazpe
• yeare

The H II complex N 44 in the Large Magellanic Cloud (LMC) provides an excellent site to perform a detailed study of star formation in a mild starburst, as it hosts three regions of star formation at different evolutionary stages, and it is not as complicated and confusing as the 30 Doradus giant H II region. We have obtained Spitzer Space Telescope observations and complementary ground-based 4 m uBVIJK observations of N 44 to identify candidate massive young stellar objects (YSOs). ...

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• PPT Slide
• Robert Williams Website
• The not-Starfire Columbia Image

M A R D U K - By Patrik HЖglund The story aint complicated. Get the blue skull key and escape. That ought to be easy, you think, but when that f***** key always seem to escape your grasp, things get more complicated. That's good, because you want a challenge, eh? ... That is the so called story, but who needs a story anyway? ... If you intend play this level, it is recommended that you turn of jumping. The level is designed for people who don't jump, so to speak. ... Patrik ...

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• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/w/who/substitute
• Commentary
• Analysis of a multiperiodic signal

... 8, ``Celestial Mechanics'', 2002 Analytical constraints on comet nucleus rotation A. I. Neishtadt 1 , D. Scheeres 2 , V. V. Sidorenko 3 , A. A. Vasiliev 1 1 Space Research Institute, Moscow, Russia 2 University of Michigan, Ann Arbor, USA 3 Keldysh Institute of Applied Mathematics, Moscow, Russia Nucleus rotation essentially affects many processes studied in cometary phy­ sics. ... Peale S. J., Lissauer J. J. Rotation of Halley's comet. ... Wilhelm K. Rotation and precession of comet Halley. ...

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• http://www.ipa.nw.ru/conference/2002/sovet/PS/BYKOVA1.PS

... The removal of the bright sky background from your IR images is one of the key steps in the data reduction process. Once bad pixels have been removed from all the astronomical frames, the object frames must have the matching sky background images subtracted from them. ... The simplest sky subtraction is where you have separate sky and object frames taken a short time apart. ... The resulting sky subtracted images should be examined to make sure that sky subtraction has been properly achieved. ...

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• Instrument file
• Gain steps
• Common Range Functions

. Supernovae distribution according to their magnitudes. This graph shows the distribution of SNe according to the magnitude. This graph is kept up to date till SN 2000ek . Along X-axis there are all magnitudes bands so that you have to read in this way: for example, the band on the graph marked as 18 takes in all supernovae between mag.17 and 18, or if one prefers ...until less than mag. 18, and so on...

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• Distribution of Supernovae according to their parent galaxies' morphological
• Distribution of Supernovae according to their parent galaxies' recession
• APOD: November 16, 1995 - Repairing Hubble

... SCANTAG allows the user to specify a name for the scan. That name appears in the summary file under the scan number. Note that it resets after each scan. ... The name is limited to 4 characters to fit in the desired column in the summary file. Argument: Any character string of up to 4 characters. Options: Any character string. ... Usage: Reset after each scan, although all instances of that scan in a loop will share the name. Example: SCANTAG='Cal2' . Craig Walker 2014-04-14 ...

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• POLARIZATION PROPERTIES OF TWO PULSARS
• General
• Recording Systems Control

... Many astronomical observations, including spectra and time series, consist of irregularly sampled data series, the analysis of which is more complicated than that of regularly spaced data sets. ... This contribution surveys the methods used in astronomy for the interpolation of irregularly sampled one-dimensional data series. ... This method (Scargle 1989) is applicable to data with arbitrary sampling. ... This method is applicable to a regularly sampled data series with missing data. ...

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• Computational Technology for Bayesian Inference
• The SAO AXAF Simulation System
• Heuristic Estimates of Weighted Binomial Statistics for Use in Detecting Rare

... According to the big bang theory, huge amounts of energy were released, giving rise to matter, antimatter and dark matter. ... The Big Bang Theory has enabled scientists to make certain predictions. ... These particles are the building blocks of matter, antimatter and dark matter. ... This could theoretically happen if the hydrogen was shockheated to over 100000 C. The Big Bang Theory is only a theory and so there is no concrete evidence to suggest that it is entirely correct. ...

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• Networking
• Abstract
• Astrodynamics 101

... If a triangle has sides of length ( a,b,c ), with sides ( a,b ) enclosing an angle of 90 degrees ("right angle"), then . ... A diagonal cut divides it into two right-angled triangles with short sides a and b , and the area of such a triangle is therefore (1/2) ab . Now look at the square on the left constructed out of four ( a,b,c ) triangles. ... As the drawing on the right shows, that area can be divided into 4 triangles like the ones before, plus a small square of side ( a-b ). ...

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• CYlindrical GAmma-ray Monitor CYGAM -
• The FSP3 criteria and plot description
• Oertsted and Ampere