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1. Introduction
Next: Historical Background Up: R Coronae Borealis Stars Previous: R Coronae Borealis Stars . R Coronae Borealis stars, or RCB stars, are an important class of VARIABLE STAR . ... RCB stars, remarkably, do both. RCB stars are best known because of their irregular `fades'. ... The fades are caused by enormous clouds of dust which cover a large part of the star's surface. ... As well as irregular fades, the light output from RCBs goes up and down by a few per cent every 40 days or so. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~csj/rcrb_rev/node2.html -- 5.1 Кб -- 16.03.2000
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2. Search Algorithms
Next: Fitting of data Up: Extraction of Information Previous: Extraction of Information . For projects which perform statistical analysis on groups of objects, it is important to rely on an objective search method to extract them from the data frames. ... The simplest and fastest method is using a given level over a previously determined background value as the criterion to identify possible sources. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node25.html -- 5.1 Кб -- 23.02.1996
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3. Algorithm
... elcplot (elcplot-2.1) [xmmsas_20050815_1803-6.5.0] . ... Subroutine elcplot Recover parameters (File names, Device type, Binning factor, Output file, x-axis units) Read source time series FITS file : Get dataset and table. ... Recover all light curves included in table Net source rates and errors & background rates and errors are recorded in arrays of dimension Nlightcurve * Nbins. ... Draw net source and background time series and GTIs on different panels. ... Close plot. End subroutine elcplot . ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/6.5.0/doc/elcplot/node9.html -- 4.3 Кб -- 15.08.2005
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4. ADASS Conference Series
... The Astronomical Data Analysis Software and Systems (ADASS) conference is held each year at a different hosting astronomical institution. The conference provides a forum for scientists and programmers concerned with algorithms, software and software systems employed in the acquisition, reduction, analysis, and dissemination of astronomical data. ... The 26th annual ADASS conference will be held from October 16th to 20th, 2016 at the Stazione Marittima Conference Centre , Trieste, Italy. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/ -- 8.0 Кб -- 05.04.2016
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5. Deforming Plug-plates
... The plug-plates of SDSS project are responsible for locating the optical-fiber plugs spatially and for defining the plug tilt with respect to the surface of best focus. ... Previous attempts to match the SDSS plug-plates to the surface of best focus were conducted using only the bending fixture. The analyses performed indicated that by adding a central constraint to the plug-plate deformation process, the plates could be made to match the surface of best focus within an acceptable range of error. ...
[ Сохраненная копия ]  Ссылки http://www.apo.nmsu.edu/Telescopes/SDSS/eng.papers/19961230_PlateBending/19961230.html -- 8.7 Кб -- 19.05.1998
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6. Intro
The problem of turbulence is one of the most important and challenging problem of the modern science. ... An experimental investigation of turbulent flows with special experimental setup and equipment, which allow to obtain reliable data with good precision, is very difficult and expensive process. ... The natural assumption for the theory of turbulence is that there exist some (unknown yet) general and universal properties for wide range of different turbulent flows. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/~er/mf1.html -- 6.8 Кб -- 01.10.2012
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7. Dayside aurora [Oulu]
... The dayside auroral precipitation consist of magnetosheath related boundary layer precipitation, and plasma sheet related BPS/CPS precipitation (extensions of the nightside precipitation regions). ... For example, the much lower fluxes from the LLBL region when compared to the cusp are compensated by the bidirectional electron beams found in the LLBL: the precipitating energy fluxes in the LLBL and the cusp are not that different. ... directly through the cusp and plasma mantle . ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/SPPHTEXT/dayaur.html -- 8.8 Кб -- 21.12.2007
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8. Thermal/Sky Backgrounds GPI Data Pipeline 1.0 documentation
... GPI Data Pipeline 1.0 documentation . ... Thermal/Sky Backgrounds . ... Using Thermal/Sky Backgrounds in GPI Data Reduction: . Creating Calibrations: . ... Thermal emission (from sky or telescope) becomes an important background source for wavelengths longer than 2 microns. ... The pipeline treats thermal/sky backgrounds similar to dark frames and is designed to subtract a thermal/sky background, scaled to the integration time of the science image, from K-band observations. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~mperrin/software/gpidata/ifs/steps/thermal_background.html -- 11.2 Кб -- 14.02.2014
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9. http://site2010.sai.msu.ru/static/doc/TTravouillon_TMT_site_testing_site2010.pdf
Lessons learned from the Thirty Meter Telescope site testing Tony Travouillon Sebastian Els, Angel Otarola, Reed Riddle, Matthias Schoeck, Warren Skidmore TMT.XXX.PRE.05.0XX.DRF01 1 Introduction TMT and its Site testing. Important choice before going on site. ... Considerations during analysis of the data. TMT.XXX.PRE.05.0XX.DRF01 2 Some Background about the TMT Site Testing TMT is a 30m, segmented, RitcheyChretien telescope design. ... ASCA Cloud Cover Analysis So how do we do it in practice? ...
[ Текст ]  Ссылки http://site2010.sai.msu.ru/static/doc/TTravouillon_TMT_site_testing_site2010.pdf -- 2354.3 Кб -- 18.10.2010
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10. http://www.iki.rssi.ru/conf/2009elw/presentations/presentations_pdf/session5/Patterson_ELW.pdf
Understanding Europa's Radiation Environment and How it Influences Landing Site Characterization G.W. Patterson, L.M. Prockter, C. Paranicas Applied Physics Laboratory Introduction · The surface of Europa is weathered by charged and neutral particles, micrometeroids, and photons. ... Background · Criteria for characterizing potential landing sites [e.g., Figueredo et al., ... 2004) Background · Criteria for characterizing potential landing sites [e.g., Figueredo et al., ... Figueredo et al., ...
[ Текст ]  Ссылки http://www.iki.rssi.ru/conf/2009elw/presentations/presentations_pdf/session5/Patterson_ELW.pdf -- 2380.9 Кб -- 02.03.2009
[ Текст ]  Ссылки http://www.cosmos.ru/conf/2009elw/presentations/presentations_pdf/session5/Patterson_ELW.pdf -- 2380.9 Кб -- 02.03.2009
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11. RELATED WORK
... Early on, our interest in chirping analysis functions was motivated by a different kind of chirping phenomenon: chirping due to perspective. ... Our interest in radar, however, drew us toward processes that are more accurately analyzed by linear-FM chirplets. ... We have also constructed other chirplet transforms, such as a three-parameter Doppler chirplet representation that models a source producing a sinusoidal wave, while moving along a straight line (e.g. a train whistle). ...
[ Сохраненная копия ]  Ссылки http://crydee.sai.msu.ru/~vab/Wavelet.rsc/Chirplet.dir/node3.html -- 6.0 Кб -- 15.04.1998
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12. PPTA Wiki | Projects / RedGW
... PPTA timeline . ... List of projects . ... RedGW . ... One of the main goals of pulsar timing array projects is to limit the existence of a background of gravitational waves (GWs). Jenet et al. (2006) developed a method to determine such a limit if (and only if) the pulsar timing residuals were statistically white. In the paper we used data from six pulsars from the PPTA project to obtain a limit. The remaining pulsars were rejected because their timing residuals were not white. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/research/pulsar/array/index.php?n=Projects.RedGW -- 14.5 Кб -- 12.04.2016
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13. Wavelet references
... Part B: Theory of Wavelet Transform . ... Part G: Using the Wavelet for analysis of internal Structure of the astrophysical objects + N-Dimensions . ... Comment: Parts of light curves of variable white dwarfs ate investigated by means of a wavelet analysis. ... Comment: The quasi-periodic nature of chromospheric activity variations is not completely compatible with the standard Fourier analysis, so a wavelet analysis is applied to study the nature of regularities in the data. ... 1992) . ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/staff/afk/DataAnal/Wavelet/WLref.htm -- 14.6 Кб -- 19.11.2010
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14. APEX/Intro
... Research . Projects . ... The name of the project APEX is a reduction from words " Active Plasma Experiments " . The core of the project are active experiments with injection of electron and (or) plasma beams from a board of the satellite with simultaneous registration of the phenomena, produced by interaction of injected beam with background plasma. ... Active experiments utilise modulated electron beam accelerator and source of modulated xenon plasma beam on the main spacecraft APEX. ...
[ Сохраненная копия ]  Ссылки http://www.izmiran.rssi.ru/projects/APEX/intro -- 9.0 Кб -- 09.04.2016
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15. About PROS
PROS is a multi-mission x-ray analysis software system designed to run under the Image Reduction and Analysis Facility (IRAF). The analysis of x-ray data differs from that of other wavelengths due to the nature of x-ray data. ... Programs in PROS are called tasks. Tasks are grouped by function into packages. ... The qpspec task allows users to extract a background corrected spectrum from a QPOE file for use in PROS or for export to other analysis systems. model specification and fitting . ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/PROS/about_pros.html -- 5.2 Кб -- 01.10.2012
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16. XWare > APOD
... Sagittarius Star Cloud . ... Stars come in all different colors. The color of a star indicates its surface temperature, an important property used to assign each star a spectral type. Most stars in the above Sagittarius Star Cloud are orange or red and relatively faint, as our Sun would appear. The Wind on Mars . ... Wind erosion has been discovered on Mars. ... The Earth's orbit is not a perfect, sun-centered circle. ... Venus Once Molten Surface . ... A New Jupiter Oval Rotates . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/apod.html?page=97&d=2001-08 -- 14.9 Кб -- 12.04.2016
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17. Introduction
Next: Observational Zoo of Binaries Up: No Title Previous: Contents . In the early 1980s, our understanding of binary star evolution љ based on the pioneer work by Paczynski (1971)[ 150 ], Tutukov and Yungelson (1973)[ 195 ], van den Heuvel and Heise (1972)[ 201 ], allowed us to construct a general evolutionary scenario љ which successfully explained the genesis of well-studied normal stars and offered potential explanation for new X-ray sources discovered in space experiments. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node2.html -- 13.0 Кб -- 29.03.1997
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18. The Galaxy Gallery Page 6: Comparative Morphology
Star formation is often best manifested by bright H II regions.These are regions of hydrogen which have been ionized by ultraviolet photons which are emitted from massive stars (typically stars more than 20 times the mass of the Sun). ... A narrowband filter image centered on this wavelength will then readily reveal these H II regions and hence the current sites of star formation in a galaxy, The luminous blobs that can be seen here are all H II regions . ... NGC 3558 Visual . NGC 3558 Infrared . ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/morph.html -- 5.4 Кб -- 23.12.1999
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19. http://selena.sai.msu.ru/Shev/Publications/ms38/ms082.pdf
Microsymposium 38, MS082, 2003 (A4 format) EVALUATING THE STRUCTURE OF THE SURFACE LAYER OF MERCURY. ... Photometric Analysis of the Lunar Surface Analogue. ... The phase function obtained directly on some segments of the lunar surface: 1- phase function of the Moon, 2 - phase function of Mercury, 3 - phase function of segments, converted to the lunar phase function system (correlation 0.8), 4 - phase function of segments, converted to the Mercurian phase function (correlation 0.9). ...
[ Текст ]  Ссылки http://selena.sai.msu.ru/Shev/Publications/ms38/ms082.pdf -- 338.5 Кб -- 06.10.2008
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20. High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)
... The remote planet Pluto and its moon Charon orbit the Sun at a mean distance of almost 6,000 million kilometres, or nearly fourty times farther out than the Earth. During a recent investigation by an international group of astronomers [1], the best picture ever of Pluto and Charon [2] was secured with the European Space Agency's Faint Object Camera at the Hubble Space Telescope (HST). ... The new HST image was taken when Charon was near its maximum elongation from Pluto (0.9 arcseconds). ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/~ohainaut/nice/pluto.html -- 8.5 Кб -- 18.08.2004
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