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1. Initial Distributions of Binary Parameters
Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node39.html -- 14.1 Кб -- 26.02.1997
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2. The AstroStat Slog background
... Posts tagged ?background? ... Probability density functions are another way of summarizing the consequences of assuming a Gaussian error distribution when the true distribution is Poisson. We can compute the posterior probability of the intensity of a source , when some number of counts are observed in a source region, and the background is estimated using counts observed in a different region. ... In both cases a background of 200 counts collected in an area 40x the source area is used. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/tag/background/index.html -- 27.6 Кб -- 01.03.2014
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3. Noise distributions
... Using the central limit theorem, the total noise can be approximated by a Gaussian or normal distribution which has the frequency function : . ... where is the mean intensity of the source. ... In the statistical analysis of the probability distribution of data several estimators based on moments are used. ... For a normal distribution, these moments are and while for a Poisson distribution are and . Besides these moments other estimators are used to describe a distribution e.g. median and mode . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/95NOV/vol2/node14.html -- 6.1 Кб -- 23.02.1996
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4. WFC3 Data Handbook
... WFC3 Data Handbook > Chapter 6: Charge Transfer Efficiency (CTE) > 6.3 The Pixel-Based Model . ... The previous section made reference to the pixel-based model of CTE losses. ... The basic model assumes that each column contains a number of charge traps distributed evenly among its pixels from j=1 to j=2048. ... In the near future, the WFC3/UVIS team plans to use overscan and charge-injection data to construct a rough model of the specific trap distribution within in each column. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/HST_overview/documents/datahandbook/hst/wfc3/documents/handbooks/currentDHB/Chapter6_CTE4.html -- 123.3 Кб -- 12.04.2016
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5. 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...
[ Сохраненная копия ]  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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6. Armagh Observatory
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The number distribution is shown in the middle panel. The right panel illustrates the distribution of chirp mass due to different DWD types, normalized by the total number (2.76†Ч108) of DWDs in the Galaxy (bin size M = 0.001M ? ... The frequency spectra of DWD strain amplitude and number distribution are presented as a function of galactic component, DWD type, formation channel, and metallicity. тИТ4.5. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/highlights/2010/563.html -- 6.6 Кб -- 23.07.2010
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7. XSPEC session thread
... List of SAS threads . This thread contains a (very!) simple standard XSPEC session for fitting data from the X-ray cameras. ... Start XSPEC . ... Load spectrum data: . ... response 1 PN.rmf . ... plot data . Fig.1: XSPEC data plot . Ignore bad channels in data: . ... The latter, the maximum number of channels to bu summed. plot data with model adjustment and e.g. the residuals (alternatives, ratio data/model, absolute chi-squared, etc) . ... Fig.2: XSPEC data, model and residual plot . ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.0.0/documentation/threads/xspec_thread.html -- 9.6 Кб -- 21.08.2006
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8. HISA Poster for the 197th Meeting of the AAS, January, 2001
... We are using Canadian Galactic Plane Survey l 74.2њ, -3.6њ < b This poster gives preliminary results for a full-fledged analysis of the gas properties and distribution of HISA features in the CGPS. ... where T ON and T OFF are observed brightnesses on and off the HISA feature, T S is the spin or excitation temperature of the HISA gas, tau is its optical depth, T C is the continuum intensity, and p is the fraction of H I emission lying behind the HISA feature. ... GIF | ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~gibson/hisa/poster/2001/ -- 13.7 Кб -- 20.11.2005
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9. Simulations of Pinhole Imaging for AXAF: Distributed Processing Using the MPI
... The pinhole simulation program is a computationally and memory intensive task. ... A parallel version was developed instead, to enable distributed processing on a cluster of workstations. The program makes use of the Message Passing Interface (MPI) standard for parallel processing, implemented as an API (Application Programming Interface) to the Local Area Multicomputer (LAM) programming environment developed at the Ohio Supercomputer Center. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass94/nguyend.html -- 11.5 Кб -- 03.11.2000
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11. Distribution of the analyzed SEPs with different >100 MeV proton fluxes (J100)
Distribution of the analyzed SEPs with different >100 MeV proton fluxes ( J 100 ) at the microwave flux density plane ' S 9 vs. ... 1) General correspondence takes place between intensities of microwave bursts and proton fluxes - J 100 increases when S 9 and S 15 rise. ... 3) Powerful microwave bursts ( S 9 , S 15 >3000-10000 sfu ) with hard radio spectra ( S 9 < S 15 ) correspond to majority of powerful proton fluxes ( J 100 >10 pfu ). ...
[ Сохраненная копия ]  Ссылки http://www.izmiran.rssi.ru/~ichertok/SEPs_radio/fig4s.htm -- 7.5 Кб -- 22.03.2012
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12. Informational system "Evolution of RG"
The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/sed/ -- 4.7 Кб -- 15.07.2001
[ Сохраненная копия ]  Ссылки http://sed.sao.ru/ -- 4.7 Кб -- 15.07.2001
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13. The Column Density Distribution Function
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Hб  I Column Density Distribution Function at z =0: the Connection to Damped Ly Statistics . ... Title/Abstract Page: The Hб I Column Density . ... for higher column densities. Figure 2: The column density distribution function at z =0. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/pasa/16_1/zwaan/paper/node4.html -- 60.2 Кб -- 08.04.2016
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14. Siding Spring Survey
T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~rmn/ -- 11.4 Кб -- 23.12.2011
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15. RADIOSUN Workshop 2014
11 august 2014/Monday: Arriving, Registration . ... The variation of solar flare coronal X-ray source spatial properties. ... Melnikov V.F., Charikov Yu.E., Kudriavtsev I.V. Directivity of X-ray and gamma-ray emission from different parts of flaring magnetic loops. ... E., Melnikov V.F. Angular characteristics of polarization degree of hard X-ray emission from different parts of flaring magnetic loops. ... The thick target model and analytical calculations of the hard X-ray emission from solar flares. ...
[ Сохраненная копия ]  Ссылки http://www.gao.spb.ru/english/personal/radiosun/program.html -- 7.7 Кб -- 25.06.2015
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16. http://www.eso.org/projects/www.eso.org.projects.ngc/General/16072008-lmehrgan.pdf
PCI interface and backplane of NGC NGC Backplane General purpose Board features CompactPCI connector Ground and Power planes Bending of the backplane di Different backplane size Leander Mehrgan Backplane General purpose Designed to achieve requirements and specifications for: achie Excellent power distribution High speed differential pairs Mechanical specification Board features CompactPCI ... PCI controller done by the XILINX FPGA (IP core). ...
[ Текст ]  Ссылки http://www.eso.org/projects/www.eso.org.projects.ngc/General/16072008-lmehrgan.pdf -- 1054.8 Кб -- 20.07.2008
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17. The Network Time Protocol (NTP) Distribution
... The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ... Information on the NTP architecture, protocol and algorithms can be found in the Further Information and Bibliography page. The Building and Installing the Distribution page presents an overview of the procedures for compiling the distribution and installing it on a typical client or server. ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/~er/xntp/ -- 8.7 Кб -- 21.12.2007
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18. Vladimir Marsakov Publication List
Scale-heights of the Galactic disk subsytems with different ages and metallicities . V.Marsakov & Yu. ... It is based on the fact, that all stars cross the disk plane several times during their Galactic orbital period. ... We have used our representative sample of nearby disk F2-G2 stars Marsakov & Shevelev (1995) in which fundamental stellar parameters was determined on the basis of published date on uvby-photometry, proper motion and radial velocities. ... Marsakov V.A., Shevelev Yu.G. Bull. ...
[ Сохраненная копия ]  Ссылки http://ip.rsu.ru/~marsakov/conf/paper1/conf1_1.htm -- 9.3 Кб -- 02.02.2007
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19. The SETI Institute is after alien signals. Assuming another world is beaming a
... Searching for Far Out and Wandering Worlds . ... The Real Reality Show: Would aliens be anything like us? ... The SETI Institute is after alien signals. Assuming another world is beaming a 1-million-watt radio signal in our direction, how far away can that source be before the signal is lost in intergalactic noise? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/magazine/ask-astro/2015/02/alien-airwaves -- 63.9 Кб -- 10.04.2016
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20. Wavelength dependence
... The first task assumes the searching for chemical composition and sizes of particles which give the wavelength dependence of the extinction efficiencies close to the observed dependence of . Figure 7: Wavelength dependence of the extinction efficiency factors for homogeneous spherical particles of different sizes consisting of astronomical silicate and amorphous carbon. The dashed segment shows the approximate wavelength dependence of the mean galactic extinction curve at optical wavelengths. ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/DOP/8-GLIB/ASTNOTES/node3.html -- 15.8 Кб -- 19.11.2010
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