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. ...

Еще в разделе: (Показать все результаты (>632) - xray.sai.msu.ru/ )

• Effect of sources evolution on
• Evolution of the Double Neutron Star Merging Rate andthe Cosmological Origin of
• Initial parameters of compact stars

... 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. ...

Еще в разделе: (Показать все результаты (>1992) - www.adass.org/ )

• ADASS 2003 Conference Proceedings
• Recent Advances in Parameter Estimation in Astronomy with Poisson-Distributed
• An Extragalactic Point Source Simulator for SIRTF Pipeline Testing

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. ...

Еще в разделе: (Показать все результаты (>103) - ip.rsu.ru/ )

• Vladimir Marsakov Abstracts

... 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...

Еще в разделе: (Показать все результаты (>921) - jet.sao.ru/ )

• Determination of atmospheric parameters and calculation of chemical composition
• The peculiar post-AGB supergiant IRAS04296+3429: optical spectroscopy and its
• Search for distant radio galaxies in SAO

... Bojan Nikolic web pages (r. 329) . ... Analysis 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 nested sampling algorithm. ... I this paper I cover the theoretical background, the algorithms used and the implementation details of the computer code. I also briefly illustrate the method with some previously published data for three near-by galaxies. ... Paper I: Method . ...

Еще в разделе: (Показать все результаты (>1913) - www.mrao.cam.ac.uk/ )

• B Bayesian value for
• DUST: dustiface.h File Reference

Fundamental parameters and time evolution of mass loss are investigated for post-main-sequence stars in the Galactic globular cluster 47 Tucanae (NGC 104). ... We confirm the cluster's distance as d = 4611+213 -200 pc and age as 12 ТБ 1 Gyr. Horizontal branch models appear to confirm that no more red giant branch mass loss occurs in 47 Tuc than in the more metal-poor Я? Centauri, though difficulties arise due to inconsistencies between the models. ...

Еще в разделе: (Показать все результаты (>18938) - www.stsci.edu/ )

• Starburst and Galaxy evolution
• Spitzer Survey of the Large Magellanic Cloud, Surveying the Agents of a
• Harry Ferguson

... Parameter . ... yes . typelist of files . A list of spectrum files from a set of observations, referring to one RGS instrument and one spectral order. These spectra files must be produced using the attstyle=user and associated parameters from a call to rgsproc . ... list of files . ... If this parameter is set to yes, the spectra files of the input lists will be combined to produced a combined spectrum file each for both spectra and background spectra files. filermf . ... file . ...

Еще в разделе: (Показать все результаты (>36350) - xmm.vilspa.esa.es/ )

• Procedure

Galushina T., Bykova L., Letner O., Baturin A. Tomsk State University Russia 1 Investigation Dynamics Asteroid of of 2 Solving problems construction of numerical model of asteroid motion with account chosen perturbed factors; asteroid orbit improvement according to positional observations; construction of initial probabilistic domain by linear and nonlinear methods; study of evolution of initial probabilistic domain; revealing of ...

Еще в разделе: (Показать все результаты (>320) - www.gao.spb.ru/ )

• http://www.gao.spb.ru/english/as/j2014/presentations/guseva.pdf
• http://www.gao.spb.ru/english/as/j2014/presentations/tsyba.pdf
• Pulkovo NEO Page: Ephemeris Support

Old subtables of the extended ``HIPASS Bright Galaxy Catalog'' . ... Koribalski, B.S. 2002, in ``Seeing Through the Dust'', ASP Conf. ... The Brightest Galaxies from HIPASS . Presented is the distribution of the 700 brightest HIPASS galaxies. ... Koribalski, Staveley-Smith, Kilborn, Ryder and the HIPASS/ZOA teams, ATNF Annual Report 2000 . ... The 1000 Brightest HIPASS Galaxies: New Galaxies . ... The 1000 Brightest HIPASS Galaxies: Extended Galaxies and Groups . ...

Еще в разделе: (Показать все результаты (>18513) - www.atnf.csiro.au/ )

• mslist (Measurement summary and data inspection utility) CentralProcessor 0.11
• Late Stages of Stellar Evolution
• Miscellaneous Analysis Tasks

Observed maximum rotation velocity uncorrected for inclination effect. This quantity is calculated from 21-cm line widths at different levels and/or rotation curves (generally in H_alpha). ... These data are characterized by some secondary parameters: telescope, velocity resolution, level of the 21-cm line width and bibliographic reference. ... we start from a standard sample (a set of measurements giving a large and homogeneous sample). ... HyperLeda . ...

Еще в разделе: (Показать все результаты (>2285) - www.sao.ru/ )

• EXAMINE/ROMAFOT
• The very metal-poor local dwarf galaxies
• The main observational parameters

... 0 ) = Z '' '' 0 [(1 \Gamma '')'' 1=2 sin 2 i sin 2!] ... We use the similarity theory to present the non--dimensional period T \ Lambda of the evolution of the parameters '' and i as a product of the independent factors: T \ Lambda = \ Gamma (4=15)(a \ Gamma3 =2 \ Lambda =LD )jL c (c 1 ; c 2 )j. Here LD = Ї k \ Lambda a \ Gamma3 k \ Lambda '' \ Gamma3 =2 k Ї \Gamma1=2 \ Lambda is the non-- dimensional parameter of disturbances similarity dependent on the dynamical characteristics of the ...

Еще в разделе: (Показать все результаты (>598) - www.ipa.nw.ru/ )

• (Untitled)
• ENGAMPLE
• NAA-2

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. ...

Еще в разделе: (Показать все результаты (>124) - sed.sao.ru/ )

• Description of SED models
• Radio galaxies
• Methods and results of radio cosmology. Plan.

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

Еще в разделе: (Показать все результаты (>421) - zebu.uoregon.edu/ )

• Evolution of Intelligence
• Low Surface Brightness Galaxy Gallery
• Astronomy HyperText Book

... Colours of stars and galaxies hold information on intrinsic and extrinsic parameters, such as stellar temperatures and galaxy populations, selective absorption and colour changes due different dust contents and inclination angles of galaxies, as well as galaxy redshifts and evolution. ... The colour magnitude diagram of 65000 galaxies to which all above-mentioned quantities and others contribute can only be explained by comparison with simulations. ... Colours are also of technical help. ...

Еще в разделе: (Показать все результаты (>66442) - www.eso.org/ )

• Sample Properties
• IAU Symp317 Scientific Program
• ESO - Science in Garching

... Archives . ... Reduced and Processed Data . ... 2 distribution plays an incredibly important role in astronomical data analysis, but it is pretty much a black box to most astronomers. ... Comment ( RSS ) | ... I guess in the typical analysis we call chi2 a ?random variable? that follows the chi2 distribution: . ... where D(i) is the observed data, M(i) is the model predicted data and we ?silently? assume that D(i) is normally distributed and each i measurement is independent. ... Chandra Blog . ...

Еще в разделе: (Показать все результаты (>2978) - hea-www.harvard.edu/ )

• Spectral Analysis
• Comments on: chi-square distribution [Eqn] By: Alex By: vlk By: aneta By: aneta
• Stat Jargon

. This Directory contains Model of distribution of density, temperature and effective collision freguency of electrons. Yu.K.Chasovitin. 1998. This Directory contains The program RIM98 for calculating the parameters of the ionosphere to use the "Reference Ionospheric Model-98" (RIM-98).Yu.K.Chasovitin. 1998.

Еще в разделе: (Показать все результаты (>261) - www.wdcb.ru/ )

• "STP Data" STP Data
• Catalogue 5 of WDC-B

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Despite our knowledge of stellar evolution, star birth remains a mystery. ... The latter two may indicate the envelope mass, M(env) and jet power L(jet), respectively. ... Here is a supplementary diagram showing the evolution of a low mass star with a 3000 year, 90 per cent oscillation in accreting mass superimposed. ... Also available is the evolution of a 0.5 solar mass star (on request). ...

Еще в разделе: (Показать все результаты (>2216) - star.arm.ac.uk/ )

• Refereed Journal Publications 2004
• White Dwarf Merger Movie
• Homepage of "Jorick Vink"

The longterm orbit evolution and ballistic lifetime 1995 - 2000 . The annual distribution of the key magnetospheric regions covered by the orbit in 1995 - 2000 . ... As a result of this evolution the Tail probe will stop his ballistic life in the middle October 2000. ... Back to the Top . ... Back to the INTERBALL Home Page . Back to the IKI Satellite Situation Center (SSC) Home Page . Back to the Space Research Institute (IKI) Home Page . ... Satellite Situation Center, Senior Scientist . ...

Еще в разделе: (Показать все результаты (>1444) - www.cosmos.ru/ )

• PhSRM
• Space Research Institute (IKI) Seminar
• Multipoint correlations of the solar wind parameters observed by several

... Together, this small group works mostly in the field of Active Galactic Nuclei, exploring their distribution in parameter space (black hole mass, black hole spin, accretion rate) and their evolution in cosmic time. Since the growth and activity of the central black hole, on the one side, and the assembly of the host galaxy, on the other, go very tightly in parallel, the AGN evolution is a convenient window on the more general problem of the formation of cosmic structures. ...

Еще в разделе: (Показать все результаты (>8961) - www.arcetri.astro.it/ )

• Program parameters
• SteMaGE
• A homogeneous chemical analysis of the inner Galactic disk from the first data

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

Еще в разделе: (Показать все результаты (>355) - www.astro.spbu.ru/ )

• AI SPbU library of scattering codes
• Polarization properties (transmitted radiation)
• Database of Optical Properties -- Level: subpage