Next: Transparency of the Stochastic Up: Model of the Galaxy Previous: Frequency distribution of galactic . ... The parameters of the model resulted from a numerical fitting of various data, such as the observed distribution of the young star population and neutral hydrogen, the density of population II stars in the vicinity of the Sun, the galactic rotation curve and the dynamics and distribution of globular clusters   and dwarf irregular satellites of the Galaxy. ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

Decomposition of Galaxy Images and Galaxy Rotation Curves Mosenkov A.V.*^, Savchenko S.S.*, Sotnikova N.Ya.* ... The DECA (DEComposition Analysis) code is designed to investigate images of galaxies in an automatic regime (using the simple 'bulge+disc' model) as well as in manual mode for more detailed images and/or for multicomponent structures. ... The GRCF package was created for performing the galaxies rotation curve decomposition using the models of the bulge, the disc, and the dark halo. ...

Topics covered by the IAU Symp. ... Do all galaxies have stellar halos? ... Stellar tracers of the MW halo and nearby galaxies; the stellar population of star clusters and their contribution to the galaxy halos . ... NEW: Scientific program of the IAU Symposium 317 can be downloaded here . ... GLOBAL PROPERTIES OF STELLAR HALOS FROM THE MILKY WAY TO EXTERNAL GALAXIES . ... DISCRETE CONSTITUENTS OF STELLAR HALOS IN THE MILKY WAY AND IN EXTERNAL GALAXIES : PLANETARY NEBULAE and GLOBULAR CLUSTERS . ...

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

... 145Slee,Roy Savage We present detailed radio and optical parameters for the stronger radio sources in 58 Abell cluster fields observed with the Very Large Array (VLA) using scaled arrays at 1.5 and 4.9 GHz. ... The cluster fields were distributed over 24 h of RA and between declinations +35 deg and -30 deg. ... Optical identifications Cluster Source Radio Centroid Optical Position EF Ang. ...

The ultraviolet-to-radio continuum spectral energy distributions are presented for all 75 galaxies in the Spitzer Infrared Nearby Galaxies Survey (SINGS). ... These results suggest that the star formation history may be the dominant regulator of the broadband spectral variations between galaxies. Finally, a new discovery shows that the 24 ЮМm morphology can be a useful tool for parameterizing the global dust temperature and ultraviolet extinction in nearby galaxies. ...

... 05/09/2013 Galaxy Evolution over Five Decades - Cambridge 2013 Nuclear activity and environment Effect of environment on AGN is not completely clear yet. ... 05/09/2013 Galaxy Evolution over Five Decades - Cambridge 2013 Effect of the mass Mass slices ­ optical and radio AGN overall interaction one-on-one interaction relative location 05/09/2013 Galaxy Evolution over Five Decades - Cambridge 2013 Stratified study Stratifed study that considers several strata of mass. ...

... 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 . ...

... We consider the astrophysical evolution of the Galaxy over large time scales, from early stages (an age of ~10 8 yrs) to the end of traditional stellar evolution (~10 11 yrs). ... In the model considered, the basic stages of Galactic evolution are as follows. ... Essentially all other basic parameters of the Galaxy vary little. ... The final "stellar epoch" in the life of the Galaxy is completed ~10 13 yrs after its formation, when the evolution of the least massive stars comes to an end. ...

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Here we present a self-consistent abundance analysis of the planet hosting star WASP-12 and a high-precision search for a structured stellar magnetic field on the basis of spectropolarimetric observations obtained with the ESPaDOnS spectropolarimeter. ... WASP-12 is an ideal object to look for pollution signatures in the stellar atmosphere. ...

... WMAP7 -- 7 year WMAP data ( Larson at al., ... SPT -- CMB power spectrum from SPT ( Keisler et al., ... CDM -- flat Universe with cosmological constant . ... N eff 3.046 . ... WCDM -- flat Universe with dark energy . ... CDM, WMAP7+BAO+H0 +CL . CDM, WMAP7+BAO+H0+SPT +CL . ... CDM+f (1), WMAP7+SPT+BAO+H0 +CL . CDM+f (1)+N eff , WMAP7+SPT+BAO+H0 +CL . ... CDM+N eff , WMAP7+BAO+H0 +CL . ... CDM+dn/dlnk, WMAP7+BAO+H0 +CL . ... WCDM, WMAP7+SPT+BAO+H0 +CL . ... WCDM, WMAP7+SPT+BAO+H0+SNSYS +CL . ...

The data in the Table on p. 5788 – 5789 embrace estimated parameters for 128 binary systems in near Earth, Mars crossing, main belt and Trojan orbits (more than 90% of corresponding objects are marked in the Table "Minor planet lightcurve parameters" as undoubtedly binary and in other cases as suspected binary). ... The data were presented by P. Pravec (Astronomical Institute, Academy of Sciences of Czech Republic) (see Pravec, P., Harris, A. W., 2007. Binary Asteroid Population. ...

... SphereParams Struct Reference . ... SphereParams (const float radius) . ... Definition at line 50 of file StelGeometryBuilder.hpp . ... Definition at line 103 of file StelGeometryBuilder.hpp . ... Definition at line 120 of file StelGeometryBuilder.hpp . ... Definition at line 112 of file StelGeometryBuilder.hpp . ... Definition at line 118 of file StelGeometryBuilder.hpp . ... Definition at line 110 of file StelGeometryBuilder.hpp . ... Definition at line 114 of file StelGeometryBuilder.hpp . ...

... 2000 . ... Abstract: I present the distribution of the brightest galaxies in the southern sky as obtained from the H I Parkes All-Sky Survey (HIPASS). ... A histogram of the systemic velocities of the brightest HIPASS galaxies is shown in Fig. ... It peaks, as expected, in the interval 800 to 2000 km/s. No bright galaxies were found with systemic velocities of less than -350 or more than 5500 km/s. Figure 2: Histogram of the H I systemic velocities of the brightest galaxies obtained from HIPASS. ...

... Astrophysical Cosmology The history of structure formation (galaxy evolution, reionization, etc.) ... Experiments Global Signal: CoRE-ATNF Fluctuations: 21CMA, LOFAR, MWA, PAPER, SKA Imaging: SKA MWA (from C. Lonsdale) 21 cm Observations : Reionization z=18.3 13 Mpc comoving = 0.1 MHz SF, AS, LH ( 2004 ) 21 cm Observations : Reionization z=16.1 13 Mpc comoving = 0.1 MHz SF, AS, LH ( 2004 ) 21 cm Observations : Reionization z=14.5 13 Mpc comoving = 0.1 MHz SF, AS, LH ( ...

Next: General CCF Components Up: Calibration Access and Data Previous: List of CAL Routines Contents . This section contains descriptions of the structure of CCF constituents. ... The calibration team of the SOC is also providing additional CCF components where required in conjunction with data that were generated with SciSim. ... These CCF components are generated on a need basis and are identical in structure to the real life components. ... Generation from Ground Calibration Data . ...

... Moscow, Russia . ... March-October 2000 . ... Gusev A.S. Multicolor CCD Photometry of Six Lenticular and Spiral Galaxies. ... Gusev A.S., Park M.-G. Structure and stellar population of ringed barred galaxy NGC 2336 // Astronomy and Astrophysics, 2003, V.410, P.117-129. ... Gusev A.S. Photometric Properties of Bars in Galaxies // Astronomy Reports, 2000, V.44, N9, P.579-591. ... Gusev A.S. BVRI CCD Photometry of Pecular Galaxies NGC 5605 and NGC 5665 // Astronomy Reports, 2000, V.44, N9, P.569-578. ...

... In this paper we present the results of detailed B, V, R, I, and H study of the isolated nearby blue compact dwarf (BCD) galaxy NGC6789. Judging from the literature the observed galaxy has not been resolved into stars up to now. ... The distance of the galaxy, estimated from the tip of the red giant branch (TRGB) is 2.1 Mpc which places NGC6789 close to the Local Group. ... Key words: nearby galaxies: dwarf galaxies (NGC 6789): distance moduli: star content . ... Distance. ...