... Using the uvby -photometry and proper motion data for about 5500 F stars within 80 pc from the Sun, we have studied velocity ellipsoid parameters and obtained the following results. 1) The sizw of all wllipsoid semiaxes increase systematically for groups of stars with the decrease of both temperature (at constant metallicity) and metallicity (at constant temperature). ... As a result, each of the three parameters - temperature, metallicity and velocity dispersion - is an age indicator. ...

Find Similar Abstracts (with default settings below ) . ... Also-Read Articles . ... Parameters of the 41 Dra system components . ... 00/2001 . ... Stars: Binaries, Binaries: Fundamental Parameters, Binaries: Individual . ... 61B Based on spectral and speckle-interferometric observations of the system 41 Dra, model atmosphere parameters of the system components have been derived: component Aa - T eff = 6500K, lg g = 3.99, R = 1.87 R solar , component Ab - T eff = 6500K, lg g = 4.11, R = 1.61 R solar . ...

... 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. ...

... The spherical aberration affecting the HST primary mirror (Burrows et al. 1992) can seriously alter the core brightness profile of elliptical galaxies. ... In this paper we test the performance of deconvolution in recovering the original surface brightness profile in the case of elliptical galaxies observed with the HST Planetary Camera (PC). ... Keywords: Elliptical Galaxies, Deconvolution . ...

XMM-Newton Science Analysis System . ... Meta Index . The parameter handling system allows tasks to retrieve parameters which are specified on the command line. The parameters are defined in a Parameter Specification File. ... default values . ... parameters that can have child-parameters, depending on its value . implicit setting of controling parameters, if a child is activated on the command line . ... Command line syntax . Parameter types . ... Optional and mandatory parameters . ...

Proceedings of the Particle Physics and Early Universe Conference (PPEUC). For this paper: postscript PPEUC CMB index 1 Likelihood Analysis.. ... Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, U.K. Max Tegmark . ... We discuss the problems of applying Maximum Likelihood methods to the CMB and how one can make it both efficient and optimal. ... A much fuller account of most of this work is available ( Tegmark, Taylor & Heavens (1997) ). ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Parkes | ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Additionally, they provide insight into the gravitational lensing process and its complex relationship with the various cosmological parameters. Keywords: cosmology: large-scale structure - gravitational lensing . ... The Elements of Gravitational Lensing . ...

... Electronic Raman scattering in Tl 2 Ba 2 CuO 6+ d : Symmetry of the order parameter, oxygen doping effects, and normal-state scattering. Abstract: . Single crystals of the optimally doped, moderately and strongly overdoped high-temperature superconductor Tl 2 Ba 2 CuO 6+ d (Tl-2201) with T c = 80, 56, and 30 K, respectively, have been investigated by polarized Raman scattering. ...

. Temperature | Pressure | Wind | Humidity . Day | Week | Month | Year . Mirror temperatures | In-dome temperatures . Advanced...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Here we present the ionospheric parameters variations for quiet conditions. ...

... Mokhovaya st., 11, Moscow, 103907, Russia. ... Proceedings of the 6th IEEE International Specialist Workshop on Nonlinear Dynamics of Electronic Systems, Budapest, Hungary, 16-18 July, 1998 , pp. ... The method for synchronization of drive-response systems on conditions of a large mismatch of parameters is considered on example of the system based on modified Chua's circuit. The approach to information transmission using such method is proposed. ...

INTERELATION OF GEOMAGNETIC DISTURBANCES AND SOLAR WIND PARAMETERS Ivanov V.G., Miletsky E.V. Central astronomical observatory of RAS at Pulkovo Abstract Interrelations between characteristics of geomagnetic activity and parameters of the solar wind are investigated. ... Relatively simple relations that link variations of geomagnetic activity and solar wind parameters are found. The obtained models allow quantitative estimation of influence of the solar wind parameters upon geomagnetic activity. ...

... Публикации и издания Публикации профессорско-преподавательского состава СГАУ Издания проф. Сосниной Т.Н. Biosphere: Analysis of Value Parameters . ... Besides, the ways of saving the use value and value properties of biosphere are analyzed. The expediency of transformation of two-criterion theory of value into the three- criterion theory of the balance of value, where the ecologic component performs the function of the key criterion has been founded. ... BIOSPHERE USE VALUE OF THE PRODUCT: MAIN . ...

THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...

... T2090 Date Received: 2005­Feb­04 16:23:06 Technical Page Proposal Type: Regular General Category : Terrestrial Aeronomy Sub­ Category : Radar Observation Category : Ionosphere Total Time Requested: 60.00 Hours Proposal Title: A new approach to the optimal extraction of ionospheric parameters from inco­ herent scatter radar measurements ABSTRACT: With the objective of improved accuracy in the estimation of the ... This proposal requires coordination with GPS L3 at 1381 MHz. ...

... 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. ...

Next: Other parameters of the Up: The Model Previous: Initial binary parameters . As we only deal with initially massive binary systems (their primary's mass is higher than 10 ), which are capable of evolving off the main sequence during less than years, the compact stars left behind stellar evolution are (in the case of the most massive stars) NSs and BHs. ... For a NS belonging to a binary, the evolution complicates as the secondary star evolves: for example, (recycling), etc. ...

Organisers: Philippe Lebacque (Laboratoire de Math matiques de Besan on ) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institute for Information Transmission Problems) , Alexey Zykin (Laboratoire Poncelet, State University Higher School of Economics, IITP) . ... General Information . ... The classical differential Galois theory studies symmetry groups of solutions of linear differential equations. ... Poncelet Laboratory web page . ...

Alessandro Gruppuso , IT, . тАЬParity violation constraints from Planck CMB polarization dataтАЭ . Abstract: Planck polarized CMB data is used constrain the cosmic birefringence effect, i.e. the in vacuo rotation of the photons polarization direction during propagation. ... This makes the cosmic birefringence effect a tracer of parity violating physics. ...

... Space flight . ... Zero Gravity . ... Characteristics of a Complex Flight: . ... Characteristics of the Reduced Gravity (Lunar Gravitation): . ... Characteristics of the Reduced Gravity (Martian Gravitation): . ... Services / Zero Gravity: General description Technical description Flight parameters Photo gallery Price . ...