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261. Galaxy sector, archive 2015
... 2015: . Detection of a Very Slow Magnetic Rotator HD 965 . Based on the measurements of the magnetic field of the chemically peculiar star HD 965, conducted in 2000-2015 with the SAO RAS 6-m telescope, we have found that this object is an ultraslow magnetic rotator with a rotation period of about 20 years. ... Detection of a Uniquely Bright Radio Flare in the X-Ray Binary Star with a Black Hole V404 Cygni (GS2032+336) . ... Detection of an OH Maser Flare in the Nebula W3 . ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_galaxy/res2015.html -- 8.5 Кб -- 10.04.2016
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262. Metagalaxy scientific achievements archive
. About us . Divisions . Telescopes . Science . Publications . Education . Service . Contacts . Archive: . 1993 . 1994 . 1995 . 1996 . 1997 . 1998 . 1999 . 2000 . 2001 . 2002 . 2003 . 2004 . 2005 . 2006 . 2007 . 2008 . 2009 . 2010 . 2011 . 2012 . 2013 . 2014 . 2015 . Last year scientific results . Any questions to webmaster . Last update: 23/11/2015
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/ -- 5.7 Кб -- 10.04.2016
[ Сохраненная копия ] Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/index.html -- 5.7 Кб -- 10.04.2016
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[ Сохраненная копия ] Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/index.html -- 5.7 Кб -- 10.04.2016
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263. Metagalaxy sector, archive 1993
... 1993: . ... Based on the results of spectrophotometric observations with a high signal-to-noise ratio of 15 blue compact galaxies with low abundances of elements heavier than helium, the origin of nitrogen in these objects was investigated. ... Based on the high-accuracy spectrophotometric observations of 10 blue compact galaxies with a low abundance of elements, the most precise value of the mass fraction of helium Y(p) was obtained. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res1993.html -- 6.9 Кб -- 10.04.2016
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264. Metagalaxy sector, archive 1994
... 1994: . For the first time the abundance of iron is determined in gas components of 10 blue compact galaxies. ... Within the "Big Trio" program (BTA - RATAN-600 - VLA) optical identifications of the first and second subsamples (40 objects) from the RATAN-600 "Cold" survey catalogue of radiosources with steep spectra have been finished at the 6-m BTA telescope. ... The distances to nearby galaxies measured with BTA were used to study the velocity field in the Local system of galaxies. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res1994.html -- 6.9 Кб -- 10.04.2016
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265. Metagalaxy sector, archive 1995
... Telescopes . ... 1995: . ... This sample proved to be the deepest one of all the analogous samples by the highest redshift estimates. ... More than 70% of dwarf galaxies from the sample were resolved into stars. ... Based on the results of optical and radio observations of a sample of 100 blue dwarf compact galaxies with the telescopes in the SAO RAS, France and USA the estimates of a total dynamic mass and the ratio of dark halo mass to the mass of the whole luminous matter were obtained. ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res1995.html -- 7.1 Кб -- 10.04.2016
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266. Metagalaxy sector, archive 1996
... Telescopes . ... 1996: . A giant cloud of neutral hydrogen was detected resulting from the observations with the 6-m telescope and other world telescopes in a broad wavelength interval from UV to radio. ... Statistically significant deviations from the Poisson distribution are found in the radiosource distribution within the deep surveys conducted at RATAN-600 at the scales coinciding with those of the recently detected Sakharov oscillations (0.7-0.3 o ). ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res1996.html -- 5.7 Кб -- 10.04.2016
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267. Metagalaxy sector, archive 1997
... 1997: . For the most representative sample of 277 most nearby galaxies, their masses, separations and tidal indexes were determined based on the BTA observations. ... The most detailed light curve of optical star-like source (corresponding to the gamma-burst of May 8, 1997) was obtained from the BTA observations simultaneously in 4 photometric bands. ... An effect of an abrupt rate slowdown is noticeable in the infrared (~8000A) 36 days after the gamma-ray burst. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res1997.html -- 6.0 Кб -- 10.04.2016
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268. Metagalaxy sector, archive 1998
... 1998: . A program searching for the host galaxies of the gamma-ray burst sources was carried out at BTA during one year. At the locations of the GRB970508 and GRB980703 optical transients, blue compact galaxies were discovered. ... In cooperation with the Astronomical Observatory of the Kiev University, Ukraine) . A list of 50 primordial galaxy candidates was compiled. ... Two latter objects are the furthest ones ever discovered. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res1998.html -- 5.6 Кб -- 10.04.2016
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269. Metagalaxy sector, archive 1999
... 1999: . The largest catalogue of distant powerful radio galaxies, detected with the RATAN-600, mapped in the radio range at the VLA, and photometered in 4 filters at the BTA 6-m telescope was compiled. The catalog allowed to estimate the color redshifts of all the objects and to estimate the ages of stellar systems of the host galaxies. ... The number of these rare and unusual objects is increased fivefold, and makes up fractions of percent among thousands of known dwarf galaxies. ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res1999.html -- 6.3 Кб -- 10.04.2016
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270. Metagalaxy sector, archive 2000
... 2000: . According to the BTA observations, the redshift Z=0.7063+-0.0017 was measured for a distant galaxy possessing the 24 magnitude, in which there occurred an explosion of a massive star, followed by a gamma-ray burst catalogued as GRB991208. ... In collaboration with the Space Telescope Science Institute (USA), the Institute of Astrophysics of Andalusia (Spain). ... According to the Palomar Sky Survey, about 600 new nearby dwarf galaxies were discovered. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2000.html -- 6.0 Кб -- 10.04.2016
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271. Metagalaxy sector, archive 2001
... 2001: . The distances to 50 galaxies in the vicinity of three most nearby galaxy clusters were measured. The radius of the "zero velocity sphere", isolating each group from the cosmological expansion is in the range from 0.95 to 1.25 Mpc for these groups, leads to the estimates of the total mass of groups ranging from 1.2 to 2.7 trillion solar masses. These results agree with the value of the mean matter density in the Local Universe from 0.05 to 0.10 in critical density units. ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2001.html -- 5.5 Кб -- 10.04.2016
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272. Metagalaxy sector, archive 2002
... Telescopes . ... 2002: . ... According to the results of long-term observations at the RATAN-600 with a unique multi-frequency radio receiver it was determined that there exists a fairly broad "transparency window" of the Galaxy into the Early Universe, where the experiments to test the physical theories of the formation and evolution of the Universe based on the manifestation of the predicted events at redshifts of 10 to 100000000 become possible. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2002.html -- 6.7 Кб -- 10.04.2016
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273. Metagalaxy scientific results 2003
... In spite of the lack of rich clusters around us and the presence of large volumes completely free from galaxies (voids), the mean luminosity densities and the mean density of hydrogen mass in the Local Universe is one and a half - twice as high as their mean global values. However, the mean local density of the baryon mass is only 2% of the critical density of the Universe, which is twice as less as the baryon density from the nucleosynthesis data (local paradox of the baryon mass). ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2003.html -- 5.9 Кб -- 10.04.2016
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274. Metagalaxy sector, archive 2004
... As a result of the BTA spectroscopy of a faint optical source (R=23), earlier identified at the BTA with a compact ( RC J0311+0507 from the sample of objects with ultra-steep radio spectra (RATAN-600), a radio galaxy with a strong narrow emission line, the most likely identification of which is the Lyman-alpha hydrogen at redshift of z=4.514. This is the second radio galaxy, discovered at a redshift of more than 4.5 - a real candidate for the most powerful radio objects of the Early Universe. ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2004.html -- 5.0 Кб -- 10.04.2016
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275. Metagalaxy sector, archive 2005
... 2005: . Using the radio telescope GMRT (India) and the 6 m telescope of SAO RAS, maps of the distribution of neutral and ionized hydrogen have been obtained in 60 nearby dwarf galaxies whose luminosities range from 1/100 to 1/10000 of that of the Milky Way. ... DDO 68 - the nearest galaxy with extremely low metallicity. ... By many parameters DDO 68 is close to the famous galaxy IZw 18, one of several candidates for young galaxies in the nearby Universe, however, it is located 2.5 times closer. ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2005.html -- 7.1 Кб -- 10.04.2016
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276. Metagalaxy sector, archive 2006
... 2006: . The distributions of radial ages and chemical compositions of the stellar population for several elliptical galaxies were measured from the BTA observations down to the record (to date) distances from the nucleus. ... Photometric distances were measured and peculiar radial velocities were determined for 3000 spiral galaxies from the 2MFGC catalog, compiled at the SAO RAS based on the 2MASS infrared sky survey. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2006.html -- 6.7 Кб -- 10.04.2016
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277. Metagalaxy sector, archive 2007
... 2007: . New Gravitational Lens Found. As a result of spectral observations using the SAO RAS' BTA, a new gravitational lens has been found (the Space Horseshoe), including a gigantic central galaxy with a redshift of z=0.44 and a lensed image of a more distant galaxy with vigorous star formation, located at z=2.38. ... Intergalactic Meteorite Particle Discovery. ... Stellar-wind Envelope of Massive Supernova Progenitor Star XRF060218/SN2006aj. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2007.html -- 6.4 Кб -- 10.04.2016
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278. Metagalaxy sector, archive 2008
... Contacts . 2008: . New dwarf galaxy discovered in the Local Group . ... New observations of radio galaxy RCJ0311+0507 (z=4.51) . ... The black hole mass was refined to be about ~10 9 M (the mass close to the limiting in radio galaxies). ... High radio luminosity of the components, given a small linear size of this radio galaxy requires the presence of non-standard methods of their formation, accounting for various merger scenarios, including the variants with dual black holes. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2008.html -- 6.9 Кб -- 10.04.2016
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279. Metagalaxy sector, archive 2009
... Contacts . 2009: . New Nearby Dwarf Galaxy with Low Metallicity. It was discovered that the interstellar medium of the SDSS J0926+3343 dwarf galaxy, located in the nearby Lynx-Cancer Void, has the metal abundance 35 times lower than the solar one - the lowest value between thousands of known galaxies inside the sphere with the radius of 20Mpc. ... For contacts: Pustilnik S.A. ) . Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2009.html -- 5.3 Кб -- 10.04.2016
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280. Metagalaxy sector, archive 2010
... Contacts . 2010: . Traces of recent interactions in active isolated galaxies . ... It is shown that in a sample of active isolated galaxies about 35% have undergone a merger with another galaxy during the last 0.5-1 billion years. ... Contacts: A.V.Moiseev ) . Posted: MNRAS, vol.408, p.400, 2010. ... A steeper drop was detected in the electron energy distribution for the GPS-galaxies, rather than for the GPS-quasars - the difference of the exponent is of about 0.46. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_metagal/res2010.html -- 6.7 Кб -- 10.04.2016
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