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901. Amorphous magnesium silicate
Next: Magnesium-aluminium oxide (spinel) Up: Examples of data contained Previous: Silicate minerals . About 85-90 % of the dust condensing in the envelopes of oxygen-rich evolved stars consist of amorphous magnesium or magnesium-iron silicates [ 6 ]. ... The calculated absorption coefficients show that MgO influences the position of the 10 and 20 m band. ... Next: Magnesium-aluminium oxide (spinel) Up: Examples of data contained Previous: Silicate minerals root 2003-03-06 ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node8.html -- 6.9 Кб -- 19.11.2010
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902. Magnesium-aluminium oxide (spinel)
... Magnesium-aluminium spinel (MgAl O ) has been considered as a primary condensate in the outflows of oxygen-rich AGB stars and as a potential carrier of the 13 m emission band observed in the spectra of these stars [ 11 ]. Therefore, in the Jena laboratory, a systematic study of the infrared properties of Mg-Al oxides of both synthetic and natural origin was performed in order to derive the optical constants of these materials. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node9.html -- 6.0 Кб -- 19.11.2010
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903. Database of Optical Properties -- Level: subsubpage
... This requires large volume of data on the optical constants of "analog materials". ... We have used the infrared optical constants of forsterite contained in the database for calculating the absorption cross sections of spherical and non-spherical particles in the Rayleigh limit (see Fig.1 ). ... Therefore, in the Jena laboratory, a systematic study of the infrared properties of Mg-Al oxides of both synthetic and natural origin was performed in order to derive the optical constants of these...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/REMARKS/index.html -- 21.5 Кб -- 19.11.2010
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904. A Database of Optical Constants of Cosmic Dust Analogs
... We describe the current state and future of the WWW Jena-Petersburg Database of Optical Constants (JPDOC) that also contains references to papers and links to internet resources related to measurements or calculations of the optical constants of materials of astronomical interest. The most important part of the JPDOC is data measured in broad wavelength ranges and partly at low temperatures in the Jena Laboratory. ... Database of Optical Properties . Examples of data contained in the JPDOC . ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/index.html -- 5.1 Кб -- 19.11.2010
[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/jpdoc2.html -- 5.1 Кб -- 19.11.2010
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[ Сохраненная копия ] Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/jpdoc2.html -- 5.1 Кб -- 19.11.2010
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905. Introduction
Next: Electronic database Up: A Database of Optical Previous: A Database of Optical . ... Many new observational data have been measured in the last years, e.g. by the Infrared Space Observatory in 1995-1998, and interpretation of these spectroscopic data is still in progress. This requires the comparison with data of ``analog materials'' delivered by spectroscopical laboratories. Various terrestrial analogs of cosmic solids have been studied in chemical and physical laboratories. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node1.html -- 6.0 Кб -- 19.11.2010
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906. Hydrogenated amorphous carbon
... Amorphous carbonaceous materials can show a great diversity of optical properties due to the variability in their microstructure. ... The differently pyrolized celluloses are representative for a suit of carbonaceous material ranging from strongly disordered (insulating) to graphitized (conducting) material. Figure: Complex refractive index of hydrogenated amorphous carbon prepared by pyrolysis (annealing) of cellulose at different temperatures. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node10.html -- 8.0 Кб -- 19.11.2010
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907. Bibliography
... Henning, V. B. Il'in, N. A. Krivova, B. Michel, and N. V. Voshchinnikov, WWW database of optical constants for astronomy, Astron. Astrophys. ... D. Fabian, Th. Henning, C. J?ger, H. Mutschke, J. Dorschner, and O. Werhan, Steps toward interstellar silicate mineralogy VI. ... Henning, and H. Mutschke, Optical Properties of Cosmic Dust Analogs, in: M.L. Sitko, A.L. Sprague, D.K. Lynch, eds. Thermal Emission Spectroscopy and Analysis of Dust, Disks, and Regoliths , ASP Conf. ... Posch, and Th. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node13.html -- 6.1 Кб -- 19.11.2010
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908. About this document ...
Up: A Database of Optical Previous: Bibliography . A Database of Optical Constants of Cosmic Dust Analogs . This document was generated using the LaTeX 2 HTML translator Version 2K.1beta (1.48) . Copyright © 1993, 1994, 1995, 1996, Nikos Drakos , Computer Based Learning Unit, University of Leeds. Copyright © 1997, 1998, 1999, Ross Moore , Mathematics Department, Macquarie University, Sydney. ... The translation was initiated by root on 2003-03-06 . root 2003-03-06 ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node14.html -- 3.4 Кб -- 19.11.2010
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909. Electronic database
. Next: Current state Up: A Database of Optical Previous: Introduction . Subsections . Current state . Future plans . Database of Optical Properties . root 2003-03-06
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node2.html -- 3.2 Кб -- 19.11.2010
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910. Current state
Next: Future plans Up: Electronic database Previous: Electronic database . The JPDOC gives access to references to the papers, data files and links to the internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to the radio domain. ... The database also provides links to internet collections of optical data files and personal WWW pages with relevant software and includes some other useful information. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/JPDOC2/node3.html -- 7.3 Кб -- 19.11.2010
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911. Database of Optical Properties -- Level: subsubpage
... Abstract: The database we announce contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants of the materials of astronomical interest: different silicates, ices, oxides, sulfides, carbides, carbonaceous species from amorphous carbon to graphite and diamonds, etc. ... The main topics of the database are the optical constants of materials involved in astronomical calculations. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/DESCRIPT/index.html -- 12.2 Кб -- 19.11.2010
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912. Database of Optical Properties -- Level: subpage
Our brief introductory notes on optical characterization of media define different optical parameters (including the refractive index, dielectric permittivity, absorption coefficient, reflectance, transmittance) and show their relationship. ... A Postscript version of the remarks is here . ... A brief description of the JPDOC was printed in the A Suppl (the Postscript version of the paper is here ). ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/index.html -- 3.7 Кб -- 19.11.2010
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913. http://www.astro.spbu.ru/DOP/5-OPTC/jpdoc1.ps
A&A manuscript no. (will be inserted by hand later) Your thesaurus codes are: 13 (04.01.1; 02.19.2; 02.18.7) ASTRONOMY AND ASTROPHYSICS WWW database of optical constants for astronomy Th. ... The database includes references to the papers, data files and links to the Internet resources related to meaґ surements, calculations, compilations, or approximations of the optical constants. ... Data We have started filling the database with the data availґ able for us. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/jpdoc1.ps -- 89.0 Кб -- 19.11.2010
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914. Database of Optical Properties -- Level: subsubpage
Among the fundamental characteristics of a material/medium such as chemical composition, density, conductivity, viscosity, one should probably give the first place to the optical constants - the refractive index and the extinction coefficient . ... The parameter i in Eq.(1) describes the optical properties of the medium where radiation propagates. ... The optical constants and allow one to estimate not only transmittance and absorption of radiation, but also its reflection at the border of two media. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/INTROD/index.html -- 23.6 Кб -- 19.11.2010
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915. http://www.astro.spbu.ru/DOP/5-OPTC/jpdoc2.ps
A Database of Optical Constants of Cosmic Dust Analogs Cornelia Jager a; , Vladimir B. Il'in c , Thomas Henning b;a , Harald Mutschke a , Dirk Fabian a , Dmitry A. Semenov a ... .Petersburg State University, 198504 St.Petersburg, Russia Abstract We describe the current state and future of the WWW Jena-Petersburg Database of Optical ... The amorphous- carbon data contained in the database cover a wide range of these properties as is illustrated by Fig. ... In: Optics of Cosmic Dust. ...
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Ссылки http://www.astro.spbu.ru/DOP/5-OPTC/jpdoc2.ps -- 898.2 Кб -- 19.11.2010
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916. DOP: Minsk Bibliography
Minsk bibliography on light scattering . ... SPHERICAL HOMOGENEOUS PARTICLES . ... Particles (not only spheres) of active materials . ... Shifrin method for sphere . ... Scattering of impulse by particle . ... Scattering by charged sphere and particle charging . ... Scattering by rough particle . ... Scattering by anisotropic and chiral particles . ... Scattering by optically nonlinear objects . ... Scattering by particles on and near a surface . ... Multiple scattering by nonspherical particles . ...
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Ссылки http://www.astro.spbu.ru/DOP/4-BIBL/bibl1.html -- 53.7 Кб -- 19.11.2010
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917. Database of Optical Properties -- Level: subsubpage
Minsk bibliography on light scattering . ... The database contains over 8000 references to papers devoted to various aspects of light scattering by small particles - from exact and approximate methods to calculate the optical properties of scatterers of different shapes and structures to the optical constants and very special questions of light scattering theory and its applications. ... 1990,2001 Victor Babenko (Bibliography compiling) . ...
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Ссылки http://www.astro.spbu.ru/DOP/4-BIBL/bibl0.html -- 4.8 Кб -- 19.11.2010
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918. MBOLS: Request results
. Minsk bibliography on light scattering . General information . (under construction) . Here we will give detailed information on the topics covered, selection of references, features of the database, etc. To homepage . ? 1990,2001 Victor Babenko (Bibliography compiling) . ? 2001 Serge Beletsky (Design & Programming) . E-mail: vi2087@vi2087.spb.edu . Last updated: 2001/10/30
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Ссылки http://www.astro.spbu.ru/DOP/4-BIBL/bibl01.html -- 2.8 Кб -- 19.11.2010
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919. MBOLS: Request results
Minsk bibliography on light scattering . What's new . ... New text in some database sections. ... Release of the alpha version of the WWW database. Extension of database sections. ... Release of a test version of the WWW database (only local use). ... Start of developement of the WWW database. ... New version of the original FOXPRO database. ... 1990,2001 Victor Babenko (Bibliography compiling) . 2001 Serge Beletsky (Design & Programming) . ...
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Ссылки http://www.astro.spbu.ru/DOP/4-BIBL/bibl02.html -- 3.5 Кб -- 19.11.2010
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920. MBOLS: Request results
Minsk bibliography on light scattering . ... The following resources cover diffferent aspects of light scattering bibliography (often much better than our database): . ... This collection of references cite useful books, many dissertations and papers (with abstracts) of the 50s--90s devided in several categories: DDA, TMM, (layered) spheres, (infinite and finite) cylinders, spheroids, clusters of spheres, ADA, GO and RT/MCM. ... Most of the papers were published from the 60s to 2001. ...
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Ссылки http://www.astro.spbu.ru/DOP/4-BIBL/bibl05.html -- 5.4 Кб -- 19.11.2010
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