... Archives . ... The PCA and ICA is used for separating mixed components with some assumptions. ... The need of source separation methods in astronomy has led various adaptations of decomposition methods available. ... I rarely come up with a paper which gathered and summarized component separation methods applicable to astronomical data. In that regards, the following paper seems useful to overview methods of reducing dimensionality for astronomers. [arxiv:0805.0269] . ... Chandra Blog . ...

... astro-ph . ... A Catalog of almost 3900 variable stars . ... Properties of Dust Grains in Planetary Nebulae - I. The Ionized Region of NGC 6445 . ... A model of the ionized region is constructed, using the photo-ionization code CLOUDY 90.05. ... The most likely conclusion is that grains are residing inside the ionized region of NGC 6445 and that the low temperature and flux of the grain emission are caused by the low luminosity of the central star and the low optical depth of the grains. ...

... The variability of the spectrum of the optical component of the IR-source IRAS01005+7910 was discovered for the first time in the BTA spectra [1]. ... The spectral features include absorptions that form in near-photospheric layers, narrow envelope emissions, and emission-absorption profiles that form in photosphere-to-envelope transition layers (the wind). ... Discovery of spectral variation in the optical counterpart of IRAS01005+7910. ... Dashed line - envelope curve of all the SiII 5979 profiles ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

... Iron abundance in the atmospheres of components of the binary system 41 Draconis . ... 5B Iron abundances, FeI and FeII lines equivalent widths, and microturbulence velocities were found for the components of a highly eccentric spectroscopic and interferometric binary system 41 Dra from high resolution spectra obtained close to the periastron. Weighted mean values of iron abundances in the atmospheres are lgN(Fe) = 7.66 ± 0.03 and lgN(Fe) = 7.72 ± 0.03 for the component a and b, correspondingly. ...

CONTENTS Volume 23 Number 2 (July 1996) . ... ENVIRONMENTS OF ACTIVE CLOSE BINARY STARS . A. G. Gunn . ... K-BAND OBSERVATIONS OF THE FLARE STAR UV CET . A. D. Andrews & P. M. Panagi . ... Elma S. Parsamian & A. D. Andrews . ... ASTRONOMICAL CLOCKS AT ARMAGH OBSERVATORY . ... JOHN BIRMINGHAM ON ``COGGIA'S COMET. ... 1995-1999 Irish Astronomical Journal, Downshay, 12 Heather Lea Avenue, Dore, Sheffield S17 3DJ, S. Yorkshire, United Kingdom WWW Contact: Alastair G Gunn Back to IAJ Home Page ...

... In this first example, we allow an object to fall onto a small radar unit . The resulting Time-Frequency distribution is shown as a contour plot in Fig. 8 (a). Figure: FIGURE GOES SOMEWHERE IN THIS GENERAL VICINITY . ... Its density plot appears as an image in Fig. ... The response has a very high peak, as evidenced from Fig. ...

... Radio-astronomy - the First Branch of Non-Optical Astronomy. Mechanismes of Radiation Generation by Astronomical Bodies. Laws of Blackbody Emission for R-Range. ... Characteristics of Radiation: Spectrum, Polarization. ... Conception of Antenna Temperature. ... Radio-astrometry: Methods of Determination of Radio Sources' Coordinates and Their Measuring by Interferometers. ... Morphology and Basics of Solar Radiation Physics: the Main Component, Slow Changing Component, Sporadical Radiation. ...

. Comments and discussion . Comments on the regular wave planetology . G.G. Kochemasov , IGEM of the Russian Academy of Sciences, Moscow, Russia . Comment on the International Jubilee Symposium "The Scientific Results of Space Research of the Moon" . Philip J. Stooke, Department of Geography, University of Western Ontario. Return . Department of Lunar . and Planetary Research .

... ASCOM FITS driver/ . 08-Sep-2007 12:16 . ... 24-Jan-2006 13:45 . ... 2.6K . ... Apache/2.2.14 (Ubuntu) Server at vega.inp.nsk.su Port 80 ...

... Comments: 8 pages LaTeX, figs on last page, submitted to Phys. Rev. Lett . ... Comments: 8 pages, AAS Tex Macros, Submitted to ApJ (Letters) . ... Comments: 11 pages, no figures, uses revtex style . ... Comments: 33 pages, 17 figures. ... Результаты сравниваются с более ранними расчетами. обзор astro-ph/0209090 . ... Commets: 27 pages, 7 figures, to be published in "Recent Reaserch Developments in Astrophyics" (Research Signpost) . ... Commets: 38 pages, 18 figures, submitted to ApJ . ...

... In particular, with the spectrometer SPI (20 keV-8 MeV), we detect in three observations an emission extending above 200 keV and for the first time even up to 350 keV for a neutron star LMXRB, GS 1826-24. ... The additional component above 200 keV is most probably of non-thermal origin. ... Figure 1. ... We reveal with SPI a hard tail up to 220 keV for 4U 1812-12 (Figure 1) and even up to 350 keV for GS 1826-24 (Figure 2), representing the hardest emission ever detected for a Neutron Star LMXRB. ...

... Velocity allipcoid parameters as functions of heigt above the Galactic disk for the complete sample of F -stars (left) and a young ( t 3 Gyr) metal-rich ( [Fe/H] -0.13 ) group (reght). ... next figure | previous figure . ...

... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

. Back to A.Zasov's homepage.

Laboratory work N7 Low-pass filtering. 1) Generate the signal with two periodic components and high-frequency noise. ... 2) Perform it's filtering with Panteleev filter 0 - h(t) = e 22 0 |t| 2 0 t 0 |t| cos + sin 2 2 , where 0 is a parameter. The frequency response of the Panteleev filter is ^ h( ) = 4 0 . 4 0 + 4 Select the cut-off frequency (by varying 0 ) for filtering out high-frequency periodic component and noise. 3) Plot the initial and filtered signal. ...

... Thursday, April 19th, 2012 . ... Posted in Uncategorized | No Comments ? Friday, April 13th, 2012 . Обновлен раздел Публикации за 2011 . ... Сделать это можно использую Map Tools проекта SOPAC (http://sopac NULL .ucsd NULL .edu/maps/) . ... 17-21 октября 2011 в ИФЗ РАН прошла Вторая молодежная тектонофизическая школа-семинар (http://tph_2011 NULL .ifz NULL .ru/) , на котором наша лаборатория приняла участие. ... Лаборатория лазерной интерферометрии is proudly powered by WordPress . ...

... Program of the Course of Radio Astronomy . Moscow State University , Physics Department , Astronomy Division , 4 th year, 60 hours in total) . ... Molecular maser emission. ... The emission of the interstellar neutral hydrogen. ... Pacholczyk, A. G. Radio Astrophysics, W. H. Freeman & Co., ... Frontiers of Astrophysics, Avrett, E. H., ed., Harvard University Press, Cambridge, Mass., ... Kaplan, S. A., Pikelner, S. B. The Interstellar Medium, Harvard University Press, Cambridge, Mass., ...

- mssql $Id: attach_mssql_basic.sql,v 1.9 2003/08/30 15:47:39 acydburn Exp $ */ BEGIN TRANSACTION; /* -- attachments_config */ INSERT INTO phpbb_attachments_config ( config_name , config_value ) VALUES ('upload_dir','files'); INSERT INTO phpbb_attachments_config ( config_name , config_value ) VALUES ('upload_img','images/icon_clip.gif'); INSERT INTO phpbb_attachments_config ( config_name , config_value ) ...

... All circuit parameters have been presented in a symbolic form. ... To use the program you will need a CIR file (PSpise, DesignLab file) of your circuit. CIR file examples have been enclosured: bpasside.cir, test1.cir, test2.cir, test3.cir, test4.cir, laksamp.cir, bridge.cir, uA741acf.cir, quartz.cir. ... Ideal operational amplifier (nullor) * Nname n1 n2 n3 n4 * * In the ideal op amp data, (n1,n2) represent output nodes, * (n3,n4) represent input nodes (noninverting, inverting). ...