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1. http://mavr.sao.ru/hq/ssl/maryeva/Rhodes_poster1.pdf
Modeling of atmospheres of the brightest stars belonging to the Cyg OB2 association O LGA M A RY E VA , V. G . K L O C H K OVA , E.L. C H E N T S OV Special Astrophysical Observatory RAS; olga.maryeva@gmail.com We present the results of modeling of the spectrum of the brightest stars belonging to the Cyg OB2 association Cyg OB2 #7 (O3If ) and Cyg OB2 #11 (O5Ifc). ... The lines in Cyg OB2 #7 spectrum are divided into three groups which can not be described with a single model. ...
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Ссылки http://mavr.sao.ru/hq/ssl/maryeva/Rhodes_poster1.pdf -- 248.1 Кб -- 31.10.2013
[ Текст ] Ссылки http://www.sao.ru/hq/ssl/maryeva/Rhodes_poster1.pdf -- 248.1 Кб -- 31.10.2013
[ Текст ] Ссылки http://jet.sao.ru/hq/ssl/maryeva/Rhodes_poster1.pdf -- 248.1 Кб -- 31.10.2013
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[ Текст ] Ссылки http://www.sao.ru/hq/ssl/maryeva/Rhodes_poster1.pdf -- 248.1 Кб -- 31.10.2013
[ Текст ] Ссылки http://jet.sao.ru/hq/ssl/maryeva/Rhodes_poster1.pdf -- 248.1 Кб -- 31.10.2013
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2. lte-codes: sterne model atmospheres
lte-codes . Sterne . ... In 2006, Behara and Jeffery introduced a new file format for the model atmospheres produced by STERNE and used by SPECTRUM and SFIT. ... allow depth-dependent descriptions of composition, and . ... model.lambda_ref <lambda ref > . ... abundance < elem > < abund > . ... structure.abundance < elem > : ( needs N depth ) . ab elem,1 , ab elem,2 , ..., ab elem,Ndepth > . ... structure.tau_ref : ( needs N depth ) . ... structure.opac_ref : ( needs N depth ) . ...
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Ссылки http://star.arm.ac.uk/~csj/software_store/guide/help_stn_model.html -- 8.6 Кб -- 15.09.2006
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3. East Siberian Center for the Earth's Ionosphere Research. Modelling, secondary
Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...
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Ссылки http://rp.iszf.irk.ru/esceir/isr/ismodelen.htm -- 5.9 Кб -- 04.06.2001
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4. Model Spectra for Spectral-Fitting Program
... The models provided are: . abs - absorption of x-rays by neutral gas with solar abundances. parameter 1 = . ... parameter 2 = . ... normalization - logarithmic value of the flux density at 1 keV in units of keV cm -2 s -1 keV -1 . ... normalization - logarithmic value of the normalization of the gaussian in units of keV cm -2 s -1 . ... absorption ( params )* model ( params ) . ... A single value for the normalization (i.e., fixed normalization) will force the program to use that value. ...
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Ссылки http://hea-www.harvard.edu/PROS/PUG/node139.html -- 12.2 Кб -- 01.10.2012
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5. The Hierarchical Stellar Systems Model Format
Next: Stellar models Up: Introduction Previous: Photometry Contents . In a hierarchical stellar system, the separation between two neighboring stars is always much smaller than the separation of this pair from the next companion in the system, be it another pair or a single star. ... They are also numerically easier to handle than non-hierarchical systems, since each pair can be described with the standard orbital parameters, and each star with a small number of physical parameters. ... System . ...
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Ссылки http://www.eso.org/~chummel/oyster/manual/node51.html -- 10.2 Кб -- 28.04.2015
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6. Input Parameters to the Self-Calibration Tasks
... We now describe the input parameters to the self-calibration tasks. ... For selfcal , you need not perform source , dra , or ddec selection if you use the selradec option (see below). minants : The minimum number of antenna that must be present before the tasks will attempt to find a solution. ... and phase : This determines whether the self-calibration tasks solve for just phase ( options=phase , which is the default) or amplitude and phase solution ( options=amplitude ). mfs : . ...
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Ссылки http://www.atnf.csiro.au/computing/software/miriad/userguide/node132.html -- 10.6 Кб -- 10.04.2016
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7. Bias-Free Parameter Estimation with Few Counts, by Iterative Chi-Squared
... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/kearnsk.html -- 12.3 Кб -- 03.11.2000
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8. http://selena.sai.msu.ru/Pug/Publications/ms42/m42_60.pdf
THE PARAMETERS INVOLVED IN HAPKE'S MODEL FOR ESTIMATION OF THE COMPOSITION OF THE EJECTA LUNAR TERRAINS. ... In the previous papers we were estimated the surface roughness of the ejecta lunar terrains by means comparison of the local phase function and the average integrated lunar indicatrix. ... The Hapke's theoretical model of the lunar surface reflection. ... For THE PARAMETERS INVOLVED IN HAPKE'S MODEL: S.G. Pugacheva, V.V. Shevchenko a low-albedo lunar surface parameter Bo = 1. ...
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Ссылки http://selena.sai.msu.ru/Pug/Publications/ms42/m42_60.pdf -- 43.9 Кб -- 06.10.2008
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9. Model Fitting
Next: Simulations Up: Maximum Likelihood Estimation of Previous: Introduction . The properties of an ensemble of faint galaxies can be defined by the distribution of the parameters of the models that best fit each individual object. ... The model also includes instrumental parameters, such as the sky background (estimated locally) and amplitude of the noise. ... The probability of the observed value is then computed for each pixel using the adopted error distribution. ...
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Ссылки http://www.stsci.edu/stsci/meetings/irw/proceedings/ratnatungak.dir/section3_2.html -- 6.3 Кб -- 18.04.1994
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10. Modeling the Spectrum
Previous page: Measuring temperatures and composition in the ionoshere . If the actual spectra that the radar measures from the ionosphere consisted of continuous smooth curves, and if it was necessary to measure only two quantities, say the width and the total power, then one could use a ruler and get pretty good answers. ... There is no simple way to get from the data points to the best answers, but one would say that one spectrum is much better than the other. ...
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Ссылки http://www.naic.edu/~isradar/is/aboutis/modeling.html -- 3.9 Кб -- 04.02.2000
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11. Extinction and transformation models
... To determine the parameters we want (stellar magnitudes and colors) from the observations we have, we fit the data to a model. The model should represent the circumstances of the observations as realistically as possible; otherwise, effects present in the data but not in the model will be distributed among the available adjustable parameters, such as stellar magnitudes, extinction coefficients, and transformation parameters. ... The bias problem . ...
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Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node292.html -- 3.4 Кб -- 23.02.1996
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12. Modeling of Very Luminous Stars in the M33
... We find a transition of LBV star from the LBV instability strip to the region of classical WN for the first time. ... Numerical modeling of the atmospheres of these objects are very important for understanding the evolutionary relationship WR and LBV stars, as well as of the physical causes of LBVs variability. We studied spectra of two very luminous stars in the M33 galaxy - LBV V532 and late WN star FSZ35. ... Bottom: The spectrum of FSZ35 with the final model . ...
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Ссылки http://www.sao.ru/Doc-en/SciNews/2012/Maryeva/ -- 5.9 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/2012/Maryeva/ -- 5.9 Кб -- 02.10.2012
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/2012/Maryeva/ -- 5.9 Кб -- 02.10.2012
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13. http://crydee.sai.msu.ru/ftproot/pub/local/science/publications/tenerife.94/ten94.ps.gz
... Moscow S. V. Ajukov THE SOLAR ENVELOPE PARAMETERS AND RADIATIVE OPACITIES IN THE MODELS OF THE PRESENT SUN Comparison of the different opacity tables at the solar core conditions. ... The convection zone depth versus the envelope entropy for the three opacity tables. ... The influence of opacity on the standard solar model parameters Increasing opacities from CS70 up to LAOL (WKM) (both in the core and the radiative zone) raises helium content by 4--5%. ... Solar models with modified opacities . ...
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Ссылки http://crydee.sai.msu.ru/ftproot/pub/local/science/publications/tenerife.94/ten94.ps.gz -- 608.7 Кб -- 29.07.1996
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14. http://xmm.vilspa.esa.es/sas/7.0.0/doc/epatplot/ChangeLog
... config/epatplot.par) | config/epatplot.lyt) | ... SSC-SPR-3052 (scr/ epatplot_mod.f90 ): RAWY set to center value of chip if no RAWY column in input file (as in MOS timing mode) Version 1.6 - 2002-11-13 ( MJF ) ------------------------------- - ( src / epatplot_mod.f90 ): removed obsolete code using hardcoded numbers [as in 1.1.6] Version 1.5 - 2002-11-12 ( MJF ) ------------------------------- - ( src / epatplot_mod.f90 ): call CAL_getPatternFraction*() routines for EPIC MOS - ( ...
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Ссылки http://xmm.vilspa.esa.es/sas/7.0.0/doc/epatplot/ChangeLog -- 10.4 Кб -- 02.06.2006
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15. Bojan Nikolic -- Fitting and Comparison of Models of Radio Spectra
... Bojan Nikolic web pages home . Next: Fitting of models of radio spectra --.. ... I describe an approach to fitting and comparison of radio spectra based . on Bayesian analysis and realised using a new implementation of the . ... used maximum-likelihood fitting of radio spectra by allowing objective . ... implementation details of the computer code. ... overall approach described here may also be useful for analysis of other . ... Copyright 2012, Bojan Nikolic feedback welcome ...
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Ссылки http://www.mrao.cam.ac.uk/~bn204/blog/2009/12/fitting-and-comparison-of-models-of.html -- 5.5 Кб -- 22.11.2012
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16. Database of Optical Properties -- Level: subpage
. Our introductory notes briefly describes the primary parameters of real scatterers, their basic models and methods of realization of the models. As an example, the models used in astronomy are overviewed. Our table after its completement will show a list of the most popular scatterer models and their parameters (under construction). To the top . Created by V.I. Last modified: 06/03/03, V.I.
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Ссылки http://www.astro.spbu.ru/DOP/2-MODS/index.html -- 2.2 Кб -- 19.11.2010
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17. http://www.ipa.nw.ru/conference/2002/sovet/PS/GAYAZOV.PS
... 8, ``Celestial Mechanics'', 2002 Parameterization of the Solar Radiation Pressure model for GPS satellites I. S. Gayazov Institute of Applied Astronomy, St. Petersburg, Russia The treatment of solar radiation pressure (SRP) effect until now is the main problem in precise modeling of GPS satellite orbits. ... In practice, however, all seven parameters of the empirical model cannot be confidently determined from phase observations. ... BarSever Y. E. A new model for GPS yaw attitude. ...
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Ссылки http://www.ipa.nw.ru/conference/2002/sovet/PS/GAYAZOV.PS -- 29.9 Кб -- 19.08.2002
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18. Empirical Model of the Nighttime Winter Ionospheric Trough
... Karpachev A.T., IZMIRAN, e-mail: karp@izmiran.ru . ... The empirical median model of the shape and position of the MIT (Main Ionospheric Trough) in the Northern and Southern Hemispheres is presented. ... Geomagnetism and aeronomy, v.26, ? ... Karpachev A.T., Afonin V.V. Dependence of the ionospheric trough occurrence probability on the season, local time, longitude, and level of magnetic activity Geomagnetism and aeronomy, v.38, ? ... Karpachev A.T. Characteristics of a Ring Ionospheric Trough. ...
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Ссылки http://www.izmiran.rssi.ru/ionosphere/sm-mit/index.shtml?LANG=ru -- 13.8 Кб -- 09.04.2016
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19. Towards a Truly Unified Model of AGN
... Towards a Truly Unified Model of AGN . ... The Unified Model holds that the aspect-dependent effects primarily determine the nature of the active galactic nucleus that we observe. ... The full postscript file can be obtained here: . The PASA Latex file can be obtained here: . The postscript file of Fig 1 can be obtained here: . ...
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Ссылки http://www.mso.anu.edu.au/~mad/unified.html -- 6.8 Кб -- 09.04.2016
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20. The Model
Next: Initial binary parameters Up: Population synthesis of Previous: Introduction . Monte-Carlo method for statistical simulation of binary evolution was originally proposed by Kornilov & Lipunov (1983a,b) for massive binaries and developed later by Lipunov & Postnov (1987) for low-massive binaries. ... Recently Leitherer & Heckman (1995) have modelled star formation for elliptical and spiral galaxies, taking into consideration only the single stars. ... Initial binary parameters . ...
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Ссылки http://xray.sai.msu.ru/~polar/html/publications/apj/node2.html -- 5.7 Кб -- 21.06.1996
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Астронет | Научная сеть | ГАИШ МГУ | Поиск по МГУ | О проекте | Авторам
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