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http://www.astronet.ru/db/xware/apod.html?page=43&d=2004-02.
http://www.astronet.ru/db/xware/apod.html?page=43&d=2004-02.
1. APOD: 2001 February 22 - 3C294: Distant X Ray Galaxy Cluster
... 2001 February 22 . 3C294: Distant X-Ray Galaxy Cluster . ... This Chandra Observatory image centered on a radio galaxy cataloged as 3C294 indeed reveals the telltale hot x-ray gas in an hourglass shaped region surrounding the dominant galaxy and shows the presence of a massive galaxy cluster in the distant universe . ... The cluster associated with 3C294 is 10 billion light-years away making it the most distant x-ray galaxy cluster ever detected . ... About APOD | ...
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Ссылки http://www.sai.msu.su/apod/ap010222.html -- 4.6 Кб -- 01.10.2012
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2. HST
... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....
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3. XWare > APOD
... POX 186: Not So Long Ago . ... Not so long ago and not so far, far away, a galaxy was born. Seen in this Hubble Space Telescope image, the island universe of stars, gas, and dust cataloged as POX 186 is a mere 68 million light-years distant toward an uncrowded region in the constellation Virgo. ... NGC 1818: A Young Globular Cluster . ... Back in the old days, back when our Galaxy first formed, perhaps thousands of globular clusters roamed our Galaxy. ...
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Ссылки http://www.astronet.ru/db/xware/apod.html?page=116&d=2006-02 -- 15.1 Кб -- 13.04.2016
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4. Hubble Space Telescope sees into Omega Centauri's future | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Nearly 16 000 light years from Earth, Omega Centauri is a vast globular cluster of several million stars. ... Recent research using observations by the Wide Field Camera 3 (WFC3) in the Hubble Space Telescope (HST) agrees with this simile.€а The stars in central region of the cluster were imaged with the WFC3 in 200s and then again in 2006. ... Tweets that mention Hubble Space Telescope sees into Omega Centauri's future | ...
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Ссылки http://www.armaghplanet.com/blog/hubble-space-telescope-sees-into-the-future.html -- 45.6 Кб -- 09.04.2016
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5. http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/NGC253.txt
... STScI-PRC95-10 FOR RELEASE: February 20, 1995 HUBBLE PROBES THE VIOLENT BIRTH OF STARS IN GALAXY NGC 253 [Left] An image of the spiral galaxy NGC 253, taken with a ground-based telescope. ... Hubble's high resolution allows astronomers to quantify complex structures in the starburst core of the galaxy for the first time, including luminous star clusters, dust lanes which trace regions of dense gas and filaments of glowing gas. ...
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Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/NGC253.txt -- 2.4 Кб -- 04.03.2001
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6. http://www.mso.anu.edu.au/seminars/abstracts/20150220-1400.html
Many intermediate-age star clusters in the Magellanic Clouds exhibit very unusual features in their colour-magnitude diagrams that suggest they may have formed their stars over periods spanning hundreds of millions of years per cluster. ... Nonetheless, this interpretation is enticing in the context of the formation of ancient globular clusters, which almost always exhibit puzzling abundance patterns that apparently require multiple episodes of star formation to explain. ...
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Ссылки http://www.mso.anu.edu.au/seminars/abstracts/20150220-1400.html -- 4.5 Кб -- 10.04.2016
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7. Astronomy HyperText Book: Stellar Clusters
Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...
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Ссылки http://zebu.uoregon.edu/textbook/sc.html -- 3.5 Кб -- 23.01.1998
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8. Globular clusters seen by Hubble and from the ground
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Ссылки http://www.eso.org/public/images/eso1252d/zoomable/ -- 1.9 Кб -- 12.04.2016
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9. MAO NASU :: Topic: The DRAGON globular cluster simulations: a million stars,
... MAO main . ... The DRAGON globular cluster simulations: a million stars, black holes and gravitational waves . ... simulations of globular clusters with a million stars on the high-performance . ... of stars in globular clusters at unprecedented detail but also shed light into . the dark world of black holes. ... clusters of single and binary black holes. ... of a globular cluster. www.mpa-garching.mpg.de/328833/hl201603 . ... MAO/NASU, 27 Akademika Zabolotnoho St. 03680 Kyiv, Ukraine . ...
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Ссылки http://www.mao.kiev.ua/index.php/ua/forum/info/483-the-dragon-globular-cluster-simulations-a-million-stars-black-holes-and-gravitational-waves -- 18.3 Кб -- 10.04.2016
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10. http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B0FAD7669-7238-499F-908D-97B43B4EC2B6%7D
This image from the NASA/ESA Hubble Space Telescope shows NGC 6388, a dynamically middle-aged globular cluster in the Milky Way. ... A new study using Hubble data has discovered that globular clusters of the same age can have dramatically different distributions of blue straggler stars within them, suggesting that clusters can age at substantially different rates. Credit: NASA/ESA/F. Ferraro (University of Bologna) ...
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Ссылки http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B0FAD7669-7238-499F-908D-97B43B4EC2B6%7D -- 4.3 Кб -- 10.04.2016
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11. Absolute proper motions of open clusters
ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...
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Ссылки http://www.sai.msu.su/groups/cluster/cl/pm/ -- 9.0 Кб -- 25.07.2002
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12. astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all
Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...
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Ссылки http://sed.sao.ru/lit/gal_clust3.html -- 18.6 Кб -- 17.07.2001
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13. http://www.astro.louisville.edu/shared_skies/archive/select/ic/ic348/20121109/ic348_wikipedia_20130415.pdf
IC 348 1 IC 348 IC 348 Hubble image of IC 348 and its surroundings.[ ... References External links · Amateur photography ( http ://www.photonhunter.at/IC348.html) Article Sources and Contributors 2 Article Sources and Contributors IC 348 Source: http ://en.wikipedia.org/w/index.php?oldid=549545123 Contributors : Jmencisom, PatrickHochleitner, RJHall Image Sources , Licenses and Contributors File:Hubble image of LRLL 54361 and its surroundings.tif Source: ...
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Ссылки http://www.astro.louisville.edu/shared_skies/archive/select/ic/ic348/20121109/ic348_wikipedia_20130415.pdf -- 177.0 Кб -- 15.04.2013
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14. Vladimir Marsakov Abstracts
... We found that 10 metal-poor globular clusters are greately distinguished for anomalously small masses on the "destruction rate-mass" plain. As it turned out, these poor clusters, situated 15 kpc farther from the Galactic centre, are somewhat younger than the bulk of the metal-poor globulars, and have anomalously red horizontal branches. ... At the same time, deficiency of distant massive clusters is noticeable with increasing distance from the galactic centre. ...
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Ссылки http://ip.rsu.ru/~marsakov/abs/abst32.htm -- 4.6 Кб -- 02.02.2007
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15. ASP: Globular Clusters and Satellite Galaxies: Companions to the Milky Way
... Our Milky Way galaxy is host to a number of companions. These companions are gravitationally bound to the Milky Way and are stellar systems in their own right. They include a population of about 150 globular clusters (GCs) and some 30 dwarf satellite galaxies (DSGs). ... These DSGs are more extended and diffuse compared to GCs. In fact the larger satellites of the Milky Way (and other galaxies, for that matter) host their own small systems of GCs. ...
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Ссылки http://www.astrosociety.org/pubs/mercury/38_02/forbes.html -- 6.7 Кб -- 02.10.2012
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16. Southern SHARC survey
... This paper ( Burke et al. 2003 ) describes the creation of one such catalogue - the Southern Serendipitous High-redshift Archival ROSAT Cluster (SHARC) survey - which covers an area of 17.7 deg 2 and consists of 32 clusters with redshifts between 0.05 and 0.7 and X-ray luminosities between 7 x 10 42 and 4 x 10 44 erg/s: the high-redshift subsample contains 16 clusters with = 0.3 and X-ray luminosities greater than 2 x 10 43 erg/s (luminosities are quoted for the 0.5 - 2.0 keV energy band). ... 1997 ...
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Ссылки http://hea-www.harvard.edu/~dburke/southern_sharc/ -- 7.8 Кб -- 01.10.2012
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17. SAI Open Star Clusters (SAI OCL) Catalog
... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...
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18. Pulsar Highlights - A Dozen new MSPs in Globular Clusters
A Canadian and American team of Astronomers have used the 305-m wide Arecibo radio dish, the world's largest and most sensitive radio telescope, to uncover a dozen new super-fast-spinning pulsars. The team directed their search for these rare and exotic stars by pointing the Arecibo radio telescope towards massive star clusters, called Globular Clusters, orbiting our Milky Way galaxy. ... One of the most exotic residents in the Globular cluster system are the millisecond pulsars. ...
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Ссылки http://www.naic.edu/~pulsar/highlights/highlights_AOGC.shtml -- 7.6 Кб -- 03.02.2013
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19. Phil Plait's Bad Astronomy: Bitesize Astronomy
... Bad Astronomy . ... Bitesize Astronomy . ... The next step up are true clusters, called open clusters . Open clusters (sometimes misleadingly called "galactic clusters") are groups of stars ranging in size from a few dozen stars up to tens of thousands. ... The youngest is about 1 or 2 million years old, while the oldest is about 6 or 7 billion years, making it just older than our own solar system. ... So by looking at the stars in the cluster we can tell pretty well how old they are. ...
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Ссылки http://www.badastronomy.com/bitesize/openclusters.html -- 20.2 Кб -- 09.04.2016
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20. Astronomy Today and the Role Played by the Hubble Space Telescope: Wednesday 17
... August Solar Eclipse Report: Thursday 11 September 2008 . ... Dr Fosbury is head of the section in the European Space Agency (ESA) as part of ESA's collaboration with NASA on the Hubble Space Telescope (HST) project at ST-ECF . ... The lecture is entitled "Astronomy today and the role played by the Hubble Space Telescope". ... Tuesday, 16 September 2008 00:44 . International Year of Astronomy, Ireland National Node . ...
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Ссылки http://star.arm.ac.uk/scholars/iya/local/astronomy_today_and_the_rol.html -- 12.1 Кб -- 31.12.2009
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