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1. Dm. Bizyaev's Publications
Bizyaev D., "The Argument Against Long Extragagalactic Distance Scale", Astron. ... Soviet Astronomy) 1997. ... Zasov A., Bizyaev D., "An Estimate of the Hubble Constant using a Criterion for Gravitational Stability of Gaseous Discs", Pis'ma v Astron. ... 1996. ... D.Bizyaev, "Types of galaxies", 1996, Zvezdochet, No 11, p.22 (in Russian) . D.Bizyaev, "The Hubble Constant", 1996, Zvezdochet, No 2, p.20 (in Russian) . D.Bizyaev, "Magellanic Clouds", 1995, Zvezdochet, No 6, p.12. (in Russian) . ...
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Ссылки http://comet.sai.msu.ru/~dmbiz/Lpubl.html -- 4.4 Кб -- 21.10.2003
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2. http://zebu.uoregon.edu/tandf/toc.html
... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...
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Ссылки http://zebu.uoregon.edu/tandf/toc.html -- 10.7 Кб -- 17.07.1998
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3. Effect of sources evolution on
... 172 ] Briefly, the count rate at the detector from a source at a redshift z is . ... Figure 55 shows the ``Green functions'' for the double compact binary merging rate evolution assuming no collapse anisotropy. ... Another way that diverse peculiarities in the - distribution induced by the sources evolution could arise is connected with a possible non-monotonic character of the star formation rate in galaxies. ... 22 ] Figure 56 shows two-dimensional cuts through the parameter space. ...
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Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node98.html -- 16.9 Кб -- 29.03.1997
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4. Abstract
Proceedings of the Particle Physics and Early Universe Conference (PPEUC). For this paper: postscript PPEUC CMB index 1 Introduction.. ... Combining measurements of the thermal Sunyaev--Zel'dovich effect with X-ray data allows calculation of a direct, physical estimate of Hubble's Constant ( ) without the need for distance-ladder-type arguments. ... 1 Introduction . ... 3 Calculating Hubble's Constant . 4 Errors In Determination of . ... PPEUC Proceedings . Fri Jun 27 15:29:33 BST 1997 ...
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Ссылки http://www.mrao.cam.ac.uk/ppeuc/astronomy/papers/grainge/grainge.html -- 3.7 Кб -- 22.12.2007
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5. Estimating the Moon's Distance
... The Round Earth . ... Aristarchus around 270 BC derived the Moon's distance from the duration of a lunar eclipse (Hipparchus later found an independent method). ... Let R be the radius of that circle and T the time it takes the Moon to go around once, about one month. ... Viewed from Earth, a "new Moon" (occuring between the time a thin crescent is last seen before sunrise and the time one is seen shortly after sunset) happens when the Moon in its apparent motion around the sky overtakes the Sun. ...
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Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Shipprc2.htm -- 10.6 Кб -- 21.12.2007
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Shipprc2.htm -- 10.6 Кб -- 22.12.2007
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[ Сохраненная копия ] Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Shipprc2.htm -- 10.6 Кб -- 22.12.2007
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6. Measurement of the dark halo shape in polar ring galaxies
... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...
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Ссылки http://www.sao.ru/Doc-en/SciNews/2014/DMhalo/ -- 8.9 Кб -- 10.04.2016
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/2014/DMhalo/ -- 8.9 Кб -- 10.04.2016
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/2014/DMhalo/ -- 8.9 Кб -- 10.04.2016
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7. Population of Galactic globular clusters, figures
. 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 .
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Ссылки http://ip.rsu.ru/~marsakov/paper5/p5fg10_1.htm -- 2.2 Кб -- 02.02.2007
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8. LDN 988: Dark Nebula in Cygnus
... LDN 988: Dark Nebula in Cygnus . ... Credit Copyright: Bob Franke Explanation: Obscuring the rich starfields of northern Cygnus, dark nebula LDN 988 lies near the center of this cosmic skyscape . ... Stars are forming within LDN 988 , part of a larger complex of dusty molecular clouds along the plane of our Milky Way galaxy sometimes called the Northern Coalsack. ... Publications with keywords: Cygnus - dark nebula - star formation . Publications with words: Cygnus - dark nebula - star formation . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1326089 -- 14.8 Кб -- 20.11.2014
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9. Star formation rates from young-star counts and the structure of the ISM across
... We present a comparison of the surface density of young stars (неБ‹†) and dust surface density (неdust) across NGC 346 (N66) in 115 independent pixels of 6 ц— 6 pc2. ... We convert неdust to gas surface density (неgas) and неБ‹† to star formation rate (SFR) surface densities (неSFR), using simple assumptions for the gas-to-dust mass ratio and the duration of star formation. ... On small scales the неSFR derived using Hн± systematically underestimates the count-based неSFR, by up to a factor of 10. ...
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Ссылки http://www.stsci.edu/~kgordon/papers/2015MNRAS.448.1847H.html -- 5.2 Кб -- 21.01.2016
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10. 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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11. http://www.eso.org/projects/dfs/team/QA-code-review-form.doc
... Readability |Check number: 1 | Description: Header existence for each |Evaluation (always/often/sometimes/| |source file and for each method, class, |never) : | ... Description: Naming conventions existence |Evaluation (always/often/sometimes/| |(variables start with lowercase, then |never) : | ... limited and commented |(always/often/sometimes/ | ... Description: Error message are formated : when an|Evaluation | error or an exception is raised, report the |(always/often/sometimes/ | ...
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Ссылки http://www.eso.org/projects/dfs/team/QA-code-review-form.doc -- 128.5 Кб -- 29.09.2003
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12. Parallax
... The greater the distance, the smaller the parallax. ... That triangle has the same proportions as the much larger triangle ABC, and therefore, if the distance B'C to the thumb is 10 times the distance A'B' between the eyes, the distance AC to the far landmark is also 10 times the distance AB. ... The most distant objects our eyes can see are the stars, and they are very far indeed: light which moves at 300,000 kilometers (186,000 miles) per second, would take years, often many years, to reach them. ...
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Ссылки http://www.iki.rssi.ru/magbase/REFMAN/STARGAZE/Sparalax.htm -- 7.1 Кб -- 21.12.2007
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13. http://www.gao.spb.ru/english/personal/malkin/publ/zm131.pdf
... In result, we obtained the GA constant. ... So, we use the results of the observations of Galactic ob jects to improve A. Our previous estimate of the GA constant (Malkin 2011) yields the values of R0 = 8.2 kpc, 0 = 29.5 km s-1 kpc-1 , and A = 5.02 µas/yr. ... So, the results published in 20082013 were used to derive the final estimate of the GA constant. ... We have applied several statistical techniques mostly used in physics and metrology to these data, as described in Malkin (2012, 2013). ...
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Ссылки http://www.gao.spb.ru/english/personal/malkin/publ/zm131.pdf -- 40.5 Кб -- 02.01.2015
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14. EDM (ImageJ API)
... public class EDM . ... Euclidean Distance Map: The value of each pixel is the distance to the nearest background pixel (for background pixels, the EDM is 0) - Ultimate Eroded Points (UEPs) are maxima of the EDM. ... static int . ... Unit in old make16bitEDM: this pixel value corresponds to a distance of one pixel. static int . ... int . ... For compatibility with previous versions of ImageJ only. public FloatProcessor makeFloatEDM ( ImageProcessor ip, int backgroundValue, boolean edgesAreBackground)...
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Ссылки http://www.astro.louisville.edu/software/astroimagej/imagej/api/ij/plugin/filter/EDM.html -- 31.4 Кб -- 02.12.2010
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15. On line Resources
... General information . ... Staff . Research staff . Technical, administrative & librarian staff . ... Staff in alphabetic order . Research . ... Solar physics . ... Information . Resources and catalogs . ... Historical highlights . Historical research . Historical archive . ... Online resources . Friends of Arcetri . ... NSSDC - National Space Science Data Center . ... a rXiv e-Prints archive . ... High Energy Astrophysics Science Archive Research Center . ...
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Ссылки http://www.arcetri.astro.it/en/services/library/resources-and-catalogs/198-services/library/370-on-line-resources -- 29.5 Кб -- 11.04.2016
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16. http://www.ipa.nw.ru/conference/2002/sovet/PS/SOKOL_L.PS
... Many massive planets contrary to Jupiter have large eccentricities of orbits. ... Another problem is to study the conditions and boundaries of stable, regular motions of small mass planet in systems having `Jupiter' with large orbital eccentricity as well as properties of regular, stable, and irregular, chaotic motions. ... The regular eccentricity evolution described above demonstrates that stable quasi--circular orbits of small planet are unusual. ...
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Ссылки http://www.ipa.nw.ru/conference/2002/sovet/PS/SOKOL_L.PS -- 32.2 Кб -- 19.08.2002
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17. Amateur Telescope Makers of Boston
... Its apparent diameter of 18.0 arc minutes corresponds to a linear extension of about 180 light years; Kenneth Glyn Jones mentions an estimate of even 20 arc minutes from deep photographic plates, corresponding to about 200 light years linear diameter. It appears somewhat smaller in amateur instruments, perhaps about 10 minutes of arc. ... Red: 20x3 minute subs, totaling 1 hour . Green: 20x3 minute subs, totaling 1 hour . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...
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Ссылки http://www.atmob.org/gallery/showimage.php?id=637 -- 4.7 Кб -- 09.04.2016
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18. The AstroStat Slog distance estimation
... Posts tagged ?distance estimation? ... Since I began to subscribe arxiv/astro-ph abstracts, from an astrostatistical point of view, one of the most frequent topics has been photometric redshifts . ... Tags: cosmology , distance estimation , Lutz-Kelker bias , machine learning , Malmquist bias , Photometric Redshift , spectrum , survey , VO . ... Comment . ... Entries RSS . Comments RSS . ... General comments . ... vlk on [MADS] Parallel Coordinates . ... Entries (RSS) and Comments (RSS) . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/tag/distance-estimation/index.html -- 20.0 Кб -- 01.03.2014
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19. Dark Matter in Spiral Galaxies
... ROTATION CURVE: When studying spiral galaxies it is invariably found that the stellar rotational velocity in the disk remains constant, or "flat", with increasing distance away from the galactic center. ... The rotation speed of the stars in galaxies is found NOT to decrease with increasing distance from the galactic center (see emission lines in the spectrum), implying that the overall mass distribution of the galaxy is different from the light distribution. ...
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Ссылки http://www.mso.anu.edu.au/~jerjen/researchprojects/darkmatter/darkmatter.html -- 7.2 Кб -- 02.10.2012
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20. Armagh Observatory
... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The present-day DD population is examined as a function of Galactic star-formation history alone. It is shown that the frequency distribution, in particular, is a sensitive function of the Galactic star formation history and could be used to measure the time since the last major star-formation epoch. ... Last Revised: 2012 November 22nd . ...
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Ссылки http://star.arm.ac.uk/highlights/2012/626.html -- 5.4 Кб -- 22.11.2012
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Астронет | Научная сеть | ГАИШ МГУ | Поиск по МГУ | О проекте | Авторам
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