... Galaxy Evolution Explorer (GALEX) . ... Searching for SZ clusters . ... Baryon content of galaxy clusters and cosmology . ... 3 sigma peaks: Observational Signatures of High Redshift Galaxies and Low Redshift Clusters . CLUSTERS OF GALAXIES . ... Clusters of galaxies seen in X-rays: war and peace . ... Chandra X-ray Observations of Clusters/Groups/Galaxies . ... Common timing features in neutron stars and black holes . ... X-ray luminosity function of low-mass X-ray binaries in galaxies . ...

... We present a new technique to segregate old and young stellar populations in galactic spectra using machine learning methods. We used an ensemble of classifiers, each classifier in the ensemble specializes in young or old populations and was trained with locally weighted regression and tested using ten-fold cross-validation. ... In this work we propose a Machine Learning (ML) method to determine the age of stellar populations in synthetic galactic spectra. ...

... News Latest News News Archive Newsletter Quarterly Status Report . ... Data Analysis SAS News What is SAS? ... Calibration & Background Calibration Background Analysis . ... Back to Background Analysis Page . The XMM-Newton Extended Source Analysis Software package (XMM-ESAS) is developed at the NASA/GSFC XMM-Newton Guest Observer Facility (GOF) in cooperation with the XMM-Newton SOC and the Background Working Group. ... http://xmm.esac.esa.int/sas/current/doc/esas/index.html . ...

... Contacts . 2012: . ... We refined the fundamental parameters of the components, the orbital periods, and the conditions of photospheric heating of the secondary component by the ultraviolet radiation of the hot component. ... The observations of the star clusters associated with ultra-luminous x-ray sources (ULXs) in four galaxies on the 6-meter and VLT telescopes have shown that all the ULXs are located within 200pc of very young star clusters (younger than 5 million years). ... Archive . ...

... Chapter 1. ... Problems of observational radio cosmology (6) . ... Analysis of radio astronomical data (32) . ... Data analysis system (33) . ... Actuality, goals and results to depend (45) . ... Interactive processing of continuum radio spectra of radio sources (72) . ... Creation of the astrophysical catalogs data base CATS and its application for selection and analysis of radio galaxy samples (112) . ... Data and methods (176) . ... Results of analysis of known radio galaxies data (179) . ...

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. ...

In accreting binary neutron star systems matter is channelled by the strong magnetic field to the poles of the neutron star. The accreted matter accumulates at the poles to form accretion mounds. Pressure from the confined matter can significantly distort the local magnetic field structure, affecting the X-ray observations and long term evolution of the magnetic field. ...

Orbit . ... The orbit of the RadioAstron provides four types of study: . rough images of radio sources with ultra-high angular resolution, using all baselines up to the radius of the apogee, that is much larger than Earth diameter; . ... high quality imaging of radio sources, with moderate resolution, by observing either with small projected base lines Earth-spacecraft, i.e. close to the orbital plane, or near the perigee. ... high accuracy orbit determination. ... Space Radio Telescope . ...

... The derived position here agrees with the position from recent ATCA observations, RA=15h 01m 34.74s, Dec=39 18 39.2" (Tasker, private communication) which found the source unresolved. Because of the relatively large position offset, the reality of the fainter component 0.12" to the west is somewhat in doubt. However, the ATCA centroid position is offset by 0.3" to the south-east of the VLBA position, suggesting that the faint component may be part of more extended structure. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . ... Test of information support procedure by the ISS Russian Segment crews in full-scale conditions for scientific-searching and fishing operations performed by State Fishery Committee ships in the World ocean waters. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... SNe Atlas . ... Charts . ... On supernovae physics.. ... Photographic atlases of galaxies.. ... The Color Atlas of Galaxies by James D. Wray; 1988; Cambridge University Press, The Pitt Building, Trumpington St. Cambridge, CB2 1RP, UK; a CCD color atlas of galaxies bny a professional astronomer using telescopes at McDonald Observatories and Las Campanas. some 600 images of galaxies with excellent resolution of the nuclear regions. ... Great for deep sky work or CCD hunting with a large telescope. ...

The stars evolution is a change with a caurse of time the physical characteristics and the cemical composition of the stars. The stars evolution on the base of physical characteristics composition is investigated when the stars are at the different steps of evolution. ... The star evolution is going in the compact double star system in its own ways. Back . ...

... During observations of Sagittarius A* with the orbiting Chandra X-ray Observatory, the bright X-ray source at the very center of our Milky Way brightened dramatically for a few minutes. ... Hot blue stars shine brightly in this beautiful, recently formed galactic or "open" star cluster. ... Moon AND Stars . ... Visible as the central dot is quasar 3C175, the active center of a galaxy so distant that the light we see from it was emitted when the Earth was just forming. 2dF Sees Waves of Galaxies . ...

... We thank the Swift team for their rapid scheduling of this observation. ... 2455705.20851 V 14.15 0.03 2455707.83079 V 14.10 0.03 2455710.84028 V 13.53 0.02 2455713.64631 V 13.66 0.02 2455714.65479 V 14.11 0.03 2455714.71823 V 14.12 0.02 2455714.78596 V 14.20 0.02 2455717.39593 V 14.37 0.03 2455726.62861 V 14.83 0.04 2455727.16343 V 14.57 0.04 2455730.50586 V 14.57 0.03 2455730.57329 V 14.56 0.03 2455730.70360 V 14.66 0.04 2455738.32865 V 14.00 0.02 2455742.86146 V 14.21 ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

... Development of Ideas of Structure and Evolution of Stars. Integral Features of Stars, Which Determine Their Structure, Direction and Rate of Evolutuion. ... Connection between Potential and Thermal Energy of Star. ... Structure of a Main Sequence Star. Features of Massive Stars Evolution on the Main Sequence. Internal Structure of the Sun. ... White Dwarfs, Their Features. ... Evolution from the Main Sequence of Massive Stars. ... Evolution of Small Mass Stars till White Dwarfs Sequence. ...

... There is no question about the source of ionospheric plasma , since it is created from the ambient neutral atmosphere by ionization. However, the source of magnetospheric plasma is a much more complicated question: although it seems obvious that both solar wind and ionosphere feed it, the relative importance of these two sources is unclear. ... Protons (H + ) are the primary ions in solar wind and one of the major components in ionospheric outflows, and thus not good indicators of their source. ...

The Astronomy Net . Articles | AstroGuide | ... Forums . ... H ere you can find resouces to help understand perhaps the grandest of all sciences. ... Upcoming Sky Events . ... This site includes lists of manufacturers, vendors, software, etc. organized in the AstroGuide to help when you are looking to purchase your tools. ... Astronomy Articles . ... Are you interested in writing an article for the Astronomy Net? ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Liyong Liu (NAOC) . Site testing on seeing conditions of the astronomical observatories over China are briefly reviewed, including Xionglong station of NAOC, Gaomeigu station of Yunnan Observatory, Delingha station of Purple Mountain Observatory. ... PDF [3.0€аMB] October 8, 09:55 10:20 . ... In this paper, we will review the site survey activities in the past years, and present the site-testing results on the Oma site, including cloud cover, seeing, water vapor, transparency and sky brightness. ...

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... StelTextureCache.hpp . ... 62 љ TextureBackend* backend; . ... 85 љ Q_ASSERT_X(!name.isEmpty(), Q_FUNC_INFO, "Can't cache textures without a name" ); . ... 132 љ Q_ASSERT_X(!name.isEmpty(), Q_FUNC_INFO, "Can't cache textures without a name" ); . ... 148 љ Q_ASSERT_X(!name.isEmpty(), Q_FUNC_INFO, "Can't cache textures without a name" ); . ... 163 љ "Texture in cache has the same name as but is not specified texture" ); . ...