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1. The Galaxy Gallery: Messier Objects
M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...
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Ссылки http://zebu.uoregon.edu/messier.html -- 7.0 Кб -- 23.07.2004
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2. The Search for HVCs in Other Galaxies
... Are HVCs a common feature of star forming galaxies? ... Consider the typical properties of the smallest HVCs (compact HVCs) found in HIPASS: . Distance . HI Mass . ... At 5 kpc . meager objects ~116 solar masses . ... 1.15 x 10 4 solar masses . ... Putman et al. (2003) found none to 10 7 solar masses. 2% of Sculptor to 3 x 10 6 solar masses by de Blok et al. (2001) found none. ... High velocity gas around other galaxies can be identified from maps and dynamics: . ... 2003) . ...
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Ссылки http://www.naic.edu/alfa/ealfa/meeting1/minutes/hvcs.html -- 8.0 Кб -- 08.05.2006
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3. Object Detection Using Multi-Resolution Analysis
... Next: Unsupervised Catalog Classification Up: Object Detection and Previous: Classification of Objects . ... Multi-resolution allows for image analysis in terms of different scales. ... This approach is used for the detection (and subsequent analysis) of globular cluster systems around elliptical galaxies, and for image characterization and object trawling in large image databases. ... The applicability of this approach to object detection in large image collections has been investigated. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/murtaghf2.html -- 11.9 Кб -- 03.11.2000
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4. SNe related preprints
A comparative study of type I and type II supernovae . ... Sternberg State Astronomical Institute, Moscow, U.S.S.R. (Received 26 November, 1985) . ... No significant difference between SNe I and SNe II has been found in their radial distribution and frequency of outbursts in spiral galaxies. ... The radial distribution of type Ia SNe in spiral galaxies is only slightly steeper than the one for SNe II, while SNe Ib/c are more concentrated towards the central regions. ...
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Ссылки http://www.sai.msu.su/~megera/sn/preprints/ -- 3.7 Кб -- 22.12.2007
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5. Determine H0 using a SQL query to LEDA
... SQL | ... Tutorial: determine H0 using SQL queries to LEDA . ... We select in the database all galaxies with known velocity and magnitude and similar to a given template for which we know the distance, the magnitude and the radial velocity. ... We simply have to choose a property which does not depend on the distance, as for example the rotation velocity ( log(vrot) ) and select the galaxies having log(vrot) in a very narrow range around the value for the template galaxy. ... leda@univ-lyon1.fr ...
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Ссылки http://www.sao.ru/fetch/HL/leda/h0_sql.html -- 9.1 Кб -- 23.12.2013
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6. A universal physical relation for quasars
... A universal physical relation for quasars . ... Harvey Tananbaum and his collaborators have first observed a relation between the soft X-ray and the optical/ultraviolet emission in AGN in 1979. Such relation is nonlinear, and it is usually parameterized as dependence between the logarithm of the monochromatic luminosities at 2500 †Е ( L 2500†Е ) and 2 keV ( L 2keV ) . ... Yet, the dispersion along the L 2500†Е тАУ L 2keV relationship is found to be rather high, typically ~0.35тАУ0.4 in log units. ...
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Ссылки http://www.arcetri.astro.it/en/previous/204-scientific-news/1050-beta-guido -- 28.2 Кб -- 10.04.2016
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7. Determinations of Dust Scattering Properties
This is a tabulation of interstellar dust scattering properties dertermined from observations of various astrophysical objects (eg., ... Almost all studies in this field aim to determine the single scattering albedo (a) and scattering phase function asymmetry (g = <cos( )>) as different wavelengths. ... Plot Details . ... Plot details links to a page describing the studies included in the plot, the radiative transfer model used in each study, and an ascii listing of data plotted. ...
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Ссылки http://www.stsci.edu/~kgordon/Dust/Scat_Param/scat_data.html -- 6.5 Кб -- 28.11.2006
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8. astro-ph
... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....
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Ссылки http://vo.astronet.ru/arxiv/?get_articles=1&author=I. -- 15.1 Кб -- 06.02.2013
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9. HIPASS Bright Galaxy Catalog
B?rbel Koribalski (ATNF) + HIPASS and ZOA teams . Presented here are preliminary results from the "HIPASS Bright Galaxy Catalog" which currently includes more than 1000 of the HI brightest galaxies according to their HIPASS peak flux in the global HI spectrum. ... Sky distributions (Aitoff projection, STG projection, Galactic etc.) Histograms I. Measured HI properties (HI peak flux, total HI flux, systemic vel., widths, etc.) ... Comparisons (total HI flux vs w50, w20 vs w50, etc.) ...
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Ссылки http://www.atnf.csiro.au/people/bkoribal/BGals/ -- 3.1 Кб -- 22.12.2007
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10. The AstroStat Slog Blog Archive different views
... Archives . ... If you do not mind the time predictor, it is hard to believe that this is a light curve, time dependent data. ... It?s hard to say this data set is designed for time series analysis apart from the complication in statistical inference due to measurement errors. How to design the statistical study with measurement errors, huge gaps in time, and unequal time intervals is complex and unexplored. ... The following is R output without measurement errors. ... Chandra Blog . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2009/filters-are-differen/index.html -- 23.8 Кб -- 01.03.2014
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11. Asteroids collide: nobody notices until a year later! | Astronotes
... Comets and Asteroids . ... Space Flight . ... By admin October 14, 2010 Posted in: Comets and Asteroids . ... No one on Earth noticed this cataclysm until January 2010, almost a year later, when the LINEAR survey discovered something odd , initially thought to be a comet. ... For details of observations at this time, see Crash of the Asteroids by Sinead McNicholl in the March 2010 issue of Astronotes . Colliding asteroid P/2010 A2 as seen by Rosetta (Image credit: ESA) . ...
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Ссылки http://www.armaghplanet.com/blog/asteroids-collide-nobody-notices-until-a-year-later.html -- 44.6 Кб -- 09.04.2016
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12. Luminosity - Oxygen Abundance Relation for Galaxies | ESO
... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . ... ESO . ... Survey Telescopes . ... Galaxies . ... Star Clusters . ... Stars@ESO . ... Oxygen abundance (expressed in fraction of the solar value) as a function of the luminosity of the galaxies (in logarithm scale). ... They reveal for the first time that this relation is changing with time: for a given value of the luminosity, galaxies of different ages present different values of the oxygen abundance. ...
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Ссылки http://www.eso.org/public/images/eso0502a/ -- 89.3 Кб -- 10.04.2016
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13. Impact Hazard
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...
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Ссылки http://star.arm.ac.uk/impact-hazard/ -- 11.3 Кб -- 29.06.2012
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14. Subsystems of the Galactic halo, figures
... The first column shows the kinematical diagrams, where is the angle between the line of sight on the object and the vector of rotation about Z -axis, and V S is objects line-of-sight velocity relative to an observer at rest at the position of the Sun. The straight lines are regression fits, whose slopes yield the subsystem’s rotation rate. The second column shows the relations between metallicity and distance from the Galactic plane. ... privious figure | next figure . ...
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Ссылки http://ip.rsu.ru/~marsakov/paper7/p7fg3_1.htm -- 2.5 Кб -- 02.02.2007
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15. http://www.mrao.cam.ac.uk/~anthony/latex/Moore.ps
The fundamental properties of early-type galaxies in the Coma Cluster S.A.W. Moore et al. University of Durham, U.K. Co-authors: Lucey, J.R.; Colless, M.; Kuntschner, H.; Bower, R.; Davies, R.L. Early-type galaxies in clusters exhibit remarkably tight correlations between their global properties, e.g. the colour- magnitude relation, the Mg2 - relation and the Fundamental Plane. ... In addition, these data provide a baseline for evolutionary studies of distant clusters. ...
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Ссылки http://www.mrao.cam.ac.uk/~anthony/latex/Moore.ps -- 23.5 Кб -- 24.06.2000
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16. http://www.mso.anu.edu.au/seminars/abstracts/20150602-1100.html
Galaxies follow tight scaling relations linking their dynamical properties to their baryonic content. The study of these dynamical laws strongly constrains cosmological models of galaxy formation. I will present new results on the baryonic Tully-Fisher relation (BTFR), which links the total baryonic mass of a galaxy to its outer rotation velocity. I will discuss both successes and failures of LCDM models that attempt to reproduce the BTFR using gas outflows from stellar feedback. ...
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Ссылки http://www.mso.anu.edu.au/seminars/abstracts/20150602-1100.html -- 4.5 Кб -- 10.04.2016
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17. Laboratory of spectroscopy and photometry of extragalactic objects : Vortex
... Galaxies which were observed in the project . Location of vortex centers . Laboratory simulations . ... Vortex structure of NGC 157 . Vortex structure of our Galaxy . ... Line-of-sight velocity fields of gas with high precision and resolution are planned to be obtained for the sample of galaxies with regular spiral structure to reveal systematic deviation from circular rotation and to analyze it on the base of hydrodynamical models, which are in progress. ... Back to Laboratory Home Page. ...
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Ссылки http://mavr.sao.ru/hq/lsfvo/vortex/vortex.html -- 4.8 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/lsfvo/vortex/vortex.html -- 4.8 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/lsfvo/vortex/vortex.html -- 4.8 Кб -- 01.10.2012
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18. articles_flera_en
... Kopylov, A.I., Kopylova, F.G. "Structure of galaxy groups and clusters and measurement of their masses", . ... Kopylova, F.G., Kopylov, A.I. "Peculiar motions of galaxy clusters and groups in the Hercules and Leo supercluster regions", . ... Kopylova, F.G., Kopylov, A.I. "Analysis of the properties of clusters of galaxies in the region of the Leo supercluster", . ... Kopylova, F.G., Kopylov, A.I. "Analysis of the properties of clusters of galaxies in the region of the Ursa Major supercluster", . ...
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Ссылки http://www.sao.ru/hq/dolly/index_flera/articles_flera_en.html -- 20.7 Кб -- 10.04.2016
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/hq/dolly/index_flera/articles_flera_en.html -- 20.7 Кб -- 10.04.2016
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19. A simpler cosmic relation | Astronomy.com
... Tonight's Sky . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... galaxies . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... A simpler cosmic relation . ... These observations, combined with data from the Sloan Digital Sky Survey (which has observed structure at a redshift of roughly z=0.1), agree with the Chicago team's computer simulations and simple relation between galaxy luminosity and halo mass. ...
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Ссылки http://www.astronomy.com/news/2006/03/a-simpler-cosmic-relation -- 70.0 Кб -- 10.04.2016
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20. Radio galaxies
... We suggest simple method of the selection of distant galaxies based on their radio properties. ... RC0015+0503a , RC0015+0503b , RC0015+0501 , RC0034+0513 , RC0038+0449 , RC0042+0504 . ... RC0105+0501 , RC0110+0500 , RC0117+0503 , RC0126+0502 , RC0133+0459 , RC0135+0450 , RC0137+0539 , RC0143+0505 , RC0152+0453 , RC0154+0459 , RC0159+0448 . ... RC0209+0501b , RC0213+0516 , RC0226+0512 , RC0250+0512 . ... RC0302+0456 , RC0308+0454 , RC0311+0507 , RC0318+0456 , RC0355+0449 . ...
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Ссылки http://sed.sao.ru/rc_archive.html -- 6.0 Кб -- 29.11.2001
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