... The most powerful and widely used methods to calculate the scattering matrix of a fractal cluster are based on the coupled dipoles methods (e.g. the Discrete Dipole Approximation, DDA) and the theory of light scattering by a cluster of spherical particles [2-4]. ... At present the procedure of calculation of the scattering matrix is well developed for both an oriented cluster of spherical particles and for chaotically oriented clusters of such particles [4]. ...

... News . ... Pre-university education . ... Samara University scientists have developed a technology of new-designed photoelectric converters for solar batteries of spacecraft. ... The new solar batteries will be as much effective as their contemporary nanoheterostructured counterparts surface-supported by germanium, and the cost will be five times cheaper. ... Scientists of Samara University (joint SSAU and SSU) developed a technology basis of new silicon-based photoelectric converters (FEC). ...

... The simulative magnetic conjugations between the spacecrafts and ground based magnetic obsevatories are callculated for the several interagency missions and several ground based stations, see the table. Select in the table the necessary combination, for example, EISCAT and IB_AUR, to access the conjugations between INTERBALL Auroral Probe and EISCAT. For the summary conjugations between 4 mentioned satellites and some groundbased area select the combination, for example: SUPER-DARN 1 - 4 SAT. ...

. F IGURE . 10. Dependence of cluster metallicity on (a) Galactocentric distance and (b) distance from the Galactic plane. The filled and open circles correspond to the young and old halos, respectively, and the straight lines are the corresponding rms regressions. The small square shows the old-halo cluster excluded from computations based on a 3 criterion. discussion in the text | privious figure | next figure .

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Starbursts are short-lived events, stars are forming so quickly that the reservoirs of interstellar gas from which stars are coalescing would be used up on a timescale much shorter than the age of the galaxy . ... Strong stellar winds from giant new stars in the starburst region combine with the blasts of supernovae to push a mighty flood of extremely hot gas, a ?superwind? from the galaxy thousands of light years into intergalactic space. ...

... Îáùåðîññèéñêàÿ íåäåëÿ "Àñòðîíîìèÿ íà òðîòóàðå" - 15-17 àïðåëÿ . ... Ïðàêòè÷åñêàÿ àñòðîíîìèÿ ? Àñòðîíîìèÿ è êîìïüþòåðû (Ìîäåðàòîðû: Deimos , Ed_Vazhorov ) ? PIC 16F627 Based EQ-5 / CG-5 Dual Axis Hand Controller . ...

... For this purpose, catalog entries for stars within 12œx6œ region centered at 12h 20m right ascension and 33œ declination were examined. ... In Figure 1, the distribution in Johnson V magnitude of all Tycho catalog entries for stars within 12œx6œ region centered at 12h 20m right ascension and 33œ declination is plotted . ... Figure 1 : Distribution of magnitude in Johnson V. This is for the 510 stars from the Tycho catalog in a 12œx6œ area in the center of the northern survey region. ...

... The SCORPIO-2 project: . ... Moiseev A.V. 2015, Astrophysical Bulletin, 70, 494; Russian PDF ; arXiv:1511.03886 ; . ... 2015, Astronomy Letters, 41, 646; ADS link . ... 2015, MNRAS, 454, 2486; arXiv:1508.05274 ; ADS link . ... Ivanova O., Neslusan L., Krisandova Z. S., Svoren J., Korsun P., Afanasiev V., Reshetnyk V., Andreev M. 2015, Icarus, 258, 28; arXiv:1508.05207 ; ADS link . ... Afanasiev V. L., Popovic L. C. 2015, ApJ, 800L, 35; arXiv ; ADS link . ... 2015, AJ, 149, 155; arXiv ; ADS link . ...

ADC CATALOG HOLDINGS SHORT TITLE LIST March 29, 2002 (adapted from ftp://adc.gsfc.nasa.gov/pub/adc/archives/catalogs/key) Category 1: Astrometric and Positional Data - March 29, 2002 1090 Positions of 502 Stars in Pleiades Region (Eichhorn+ 1970) 1107A Washington Cat Visual Double Stars 1984.0 (Worley, Douglass 1984) 1131A SAO Star ...

... The Sun 1. Does anyone know how many stars are there in the solar system? ... Come take a look at the Sun. See that? ... Galaxies 1. Did you know all the stars you see when you look up are inside our galaxy! ... Our galaxy is huge! If the solar system- the sun and all the planets- could fit in the palm of my hand, the Milky Way galaxy would be the size of North America. ... What do you see? ... Did you know that our Sun and solar system were born in a cloud of gas and dust like this. ...

... Catalog . Publications . ... Koposov, S., Glushkova, E., Zolotukhin, I. 2008: Automated search for Galactic star clusters in large multiband surveys. ... BibTeX entry ] . ... Glushkova, E.V., Zabolotskikh, M.V., Koposov, S.E., Spiridonova, O.I, Vlasyuk, V.V., Rastorguev, A. S. 2010: Photometry of the poorly studied galactic open star clusters King 13, King 18, King 19, King 20, NGC 136, and NGC 7245 , Astronomy Letters, 36, 75 . ...

FEATURES OF THE HYDROGEN DISTRIBUTION AROUND LUNAR CRATERS PROCLUS AND KEPLER. ... In result of analysis of the data Lawrence and Feldman constructed the hydrogen distribution on the lunar surface [1]. ... However, the authors shown, that EN flux data features may be explained by other element abundance in the lunar soils, namely: Si, Ca, Gadolinium (Gd), Samarium (Sm) and Fe. ... Using of the Feldman's interpretation of the Lunar Prospector data [8], we constructed hydrogen distribution map (Fig.1). ...

The problem of eXtremely-Metal Deficient (XMD) galaxy ages. ... Problem of ages of XMD galaxies is addressed through the comparison of colours of stars in their outer regions (where one can neglect the effect of recent star-formation activity), with model tracks of evolving stellar populations from, e.g., the popular package PEGASE.2 (Fioc Rocca-Volmerange 1999). For some of XMD galaxies, the contribution of nebular emission in the light of outer regions is negligible or invisible. ...

See also: Name-based Virtual Hosts Support . As the term IP-based indicates, the server must have a different IP address for each IP-based virtual host . ... There are two ways of configuring apache to support multiple hosts. ... For each installation, use the Listen directive in the configuration file to select which IP address (or virtual host) that daemon services. e.g. Listen www.smallco.com:80 It is recommended that you use an IP address instead of a hostname (see DNS caveats ). ...

... 0.01 10 Prob./0.01 -1 a) -1 b) 10 10 -2 10 -2 10 -3 10 -3 10 -4 10 -4 10 -5 10 -5 10 -6 0.4 0.6 0.8 1 1.2 1.4 ER/Ebeam 10 -6 0.4 0.6 0.8 1 1.2 1.4 EL/Ebeam Snowmass 05 3 23 August 05 ­ David Strom ­ UO · Use very tight acollinearity cut for energy tune-up OPAL Prob. ... 0.01 1 10 10 10 10 10 10 -1 -2 -3 -4 -5 -6 0 0.2 0.4 0.6 0.8 1 1.2 EL / Ebeam 8.75 < R < 11.75 Snowmass 05 4 23 August 05 ­ David Strom ­ UO · Make detector uniform so that no fiducial cuts in etc will b e needed. ...

XEphem Forum Message . Forums: . ... God and Science ž SETI ž Software ž UFO ž XEphem . ... Post . ... Re: Re: Filter Based On Catalogs? Forum List | ... Post Message | ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

... The Co­Addition Technique Applied to Images of Galaxy Cores W. W. Zeilinger Institut f˜ur Astronomie, University of Vienna, T˜urkenschanzstraúe 17, A­1180 Wien, Austria P. Crane, P. GrosbÜl and A. Renzini European Southern Observatory, Karl­Schwarzschild Straúe 2, D­85748 Garching, Germany Abstract. ... One may therefore take full advantage of the high resolution FOC images by co­adding them with (high signal­to­noise) ground­ based data. ... References Crane, P. et al. ...

... According to the big bang theory, huge amounts of energy were released, giving rise to matter, antimatter and dark matter. ... The Big Bang Theory has enabled scientists to make certain predictions. ... These particles are the building blocks of matter, antimatter and dark matter. ... This could theoretically happen if the hydrogen was shockheated to over 100000 C. The Big Bang Theory is only a theory and so there is no concrete evidence to suggest that it is entirely correct. ...

Astrophysics Group . Cavendish Laboratory . Department of Physics > Astrophysics . ... This workshop will discuss possible future CMB ground-based experiments, aimed particularly at detection of primordial B-mode polarisation and at imaging of the Sunyaev-Zel'dovich effect. ... Last modified: 9 August 2009 . 2009 Astrophysics Group, Department of Physics, Cavendish Laboratory, University of Cambridge . ...