2002. Cable News Network Inc. All Rights Reserved. ... Discovery Communications Inc. ... The New York Times Company. ... The Washington Post Company. ... The International Herald Tribune. ... SPACE.com, Inc. ... United Press International. ... Last modified September 22, 2002. ...

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• Stephen Holland's Biography
• Andy Fruchter's Homepage
• MARC POSTMAN'S WEBPAGE

... Catalog . Publications . ... Koposov, S., Glushkova, E., Zolotukhin, I. 2008: Automated search for Galactic star clusters in large multiband surveys. ... BibTeX entry ] . ... Glushkova, E.V., Zabolotskikh, M.V., Koposov, S.E., Spiridonova, O.I, Vlasyuk, V.V., Rastorguev, A. S. 2010: Photometry of the poorly studied galactic open star clusters King 13, King 18, King 19, King 20, NGC 136, and NGC 7245 , Astronomy Letters, 36, 75 . ...

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• SAI Open Star Clusters (SAI OCL) Catalog

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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• The Galaxy Gallery Page IX: Clusters of Galaxies
• Observational Constraints
• Astro-2 and the UIT Experiment

Today's APOD | ... Editor's choices for the most educational Astronomy Pictures of the Day about globular clusters: . ... Explanation: Globular clusters once ruled the Milky Way . Back in the old days , back when our Galaxy first formed, perhaps thousands of globular clusters roamed our Galaxy . ... APOD: 2002 July 30 - A Star Cluster in Motion . ... Globular star clusters normally roam the halo of the Milky Way, ancient relics of our galaxy's formative years. ... Index | ... About APOD | ...

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• APOD: November 4, 1997 - Blue Stagglers in Globular Clusters
• Отдел Изучения Галактики и переменных звезд
• APOD Index - Galaxies: Clusters of Galaxies

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... RV Tau Variables in Globular Clusters - clues on their nature? ... This is a report of the detailed elemental abundances of RV Tau variables that reside in globular clusters, and how they compare with RV Tau variables in the field. ...

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• Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or
• ATNF Colloquium
• Blind HI Survey in the Centaurus and Fornax Clusters

... Comet Hartley Passes a Double Star Cluster . ... Open clusters NGC 869 and NGC 884, however, are doubly impressive. Also known as "h and chi Persei", this unusual double cluster , shown above, is bright enough to be seen from a dark location without even binoculars . ... Captured earlier this month, the bright comet 103P/Hartley , informally called Comet Hartley 2, passed well in front but only a few degrees away from the famous double cluster. ... Hartley 2 Star Cluster Tour . ...

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• NGC 869 and NGC 884: A Double Open Cluster
• NGC 869 NGC 884: A Double Open Cluster
• Астронет > NGC 869 NGC 884: A Double Open Cluster

... Last updated 10 October 2014 . ... Dr. Alasdair Dougal Mackey . ... Australian National University . ... 2004 - Ph.D., Institute of Astronomy and Trinity College, University of Cambridge . ... 2003-2006 - PPARC Postdoctoral Fellow, Institute of Astronomy, University of Cambridge . ... 2005 - Lecturer for Globular clusters and globular cluster systems (8 lectures), a course for first and second year Ph.D. б б б б б б б б б б б б б  students, Institute of Astronomy, University of Cambridge . ...

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• Blue Straggler Stars
• IAU Commission #37 (Star Clusters and Associations)
• GSAOI Super Star Clusters Science Page

... Posts tagged ?Globular Clusters? Oct 26th, 2007| 06:52 pm | ... I hope there are a paper or two drags your attentions and stimulates your thoughts in astrostatistics from arXiv. ... ArXiv] 4th week, Oct. ... Tags: Astrometry , Bayesian , Change Point , Globular Clusters , Matching , X-ray Binaries . ... This week, instead of only filtering AstroStatistics related papers from arxiv, I chose additional arxiv/astro-ph papers related to CHASC folks? astrophysical projects. ... ArXiv] 1st week, Oct. ...

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• The AstroStat Slog clusters
• The AstroStat Slog Blog Archive my first AAS. IV. clustering
• The AstroStat Slog globular cluster

... Our recent observations with the Hubble Space Telescope (August 29, 2014) led to revealing a highly isolated dwarf spheroidal galaxy KKs 3 situated at a distance of 2.12 0.07 Mpc from the Milky Way. The dSph galaxy locates on the southern sky (RA=02 h 24 m 44.4 s , Dec.= ... Over the last decade, about 30 dSph galaxies have been discovered inside the Local Group through systematic search in the vicinity of M31 and more that a dozen dSphs were discovered in the nearby group around M81. ...

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• important_en
• articles_flera_en
• articles_alex_01

... Star Atlas . ... Behemoth black hole found in an unlikely place . ... stars . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Surprising black-hole discovery changes picture of globular star clusters . ... Artist's conception of black hole in globular cluster. ... In a globular cluster, many of these stellar-mass black holes probably were produced early in the clusterт??s 12-billion-year history as massive stars rapidly passed through their life cycles. ...

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• What's the difference between globular clusters and dwarf spheroidal galaxies?
• What are typical star-to-star distances in globular clusters compared to
• Our Galaxy's oldest open clusters | Astronomy.com

... In 1930, Trumpler noticed that linear diameters (LD) of open clusters increase with distance (D) from the Sun. ... Since that time, the interstellar absorption has become one of the best studied factor in astrophysics, and we may hope that current OCL distance scales are free from this LD-D correlation. To verify if this is the case we have chosen several modern OCL distance scales and test them with the same clusters and the same angular diameters that Trumpler had used back in 1930. ...

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• Globular Clusters: Self-Enrichment

... Astrophysics Group . ... AMI Publications . ... AMI Consortium: Hurley-Walker N. et al., 2011, preprint (arXiv:1103.0947) . ... AMI Consortium: Olamaie M. et al., 2010, preprint (arXiv:1012.4996) . ... AMI Consortium: Shimwell T. W. et al., 2010, preprint (arXiv:1012.4441) . ... AMI Consortium: Davies et al., 2010, preprint (arXiv:1012.3659) . ... AMI Consortium: Franzen et al., 2010, preprint (arXiv:1012.3711) . ... AMI Consortium: Rodriguez-Gonzalvez C. et al., 2010, preprint (arXiv:1011.0325) . ...

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• Astrophysics Group AMI-Planck
• Astrophysics Group AMI
• PPEUC Programme - Cosmic Microwave Background Workshop

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б  Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...

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• Omega Centauri: globular cluster of 300,000 stars | Astronotes

. eng || rus . Home . Projects . Research . Publications . Astronomy Letters . Conferences . SRG Project . RSDC . Contacts . Theory and observations . INTEGRAL All-sky survey . Bright X-Ray pulsars with INTEGRAL . X-ray survey for galaxy clusters using archival ROSAT observations 400 deg 2 cluster survey . Observations of gamma-ray burst afterglows with RTT150 telescope . Optical identifications of hard X-ray sources . 2016 IKI RAN

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• Russian Turkish 1.5-m telescope
• Zeldovich-90: COSMOLOGY AND HIGH ENERGY ASTROPHYCIS
• z90-program

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... ESO . ... Survey Telescopes . ... Images . ... Galaxy Clusters . ... Star Clusters . ... Reproduction of the XMM-Newton observations of the nearby active galaxy NGC7314 (bright object in the centre) from which the newly found distant cluster (white box) was serendipitously identified. ... The inset shows the diffuse X-ray emission from the distant cluster XMMU J2235.3-2557. ...

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• Anja Feldmeier-Krause
• Discovery X-Ray Image of the Distant Cluster | ESO United States
• Discovery X-Ray Image of the Distant Cluster | ESO Australia

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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• Pulsar Highlights - Dense Matter
• Catalogs and Publications
• Pulsars in Globular Clusters

... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... SUBJECT: 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... which will be held in Beijing, P.R. China, from August 25-29, 2014, hosted by Chinese Academy of Sciences . ... China), . ... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. ...

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• MAO NASU :: Topic: The DRAGON globular cluster simulations: a million stars,

... 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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• ASP: Big Clusters, Tiny Galaxies
• ASP: A Good Definition of the Word "Planet": Mission Impossible?

... Galactocentric distance dependences of the physical parameters of globular clusters. ... The straight line in (a) is the rms regression. The large circles in (b) show mean masses within narrow R intervals, and the solid lines show the rms regression fits for thick-disk and old-halo (left) and young-halo and corona (right) clusters. The dashed lines in (c) and (d) are upper and lower envelopes drawn by eye. discussion in the text | privious figure | next figure . ...

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• Population of Galactic globular clusters, tabl
• Globular clusters with anomalously small masses, figures

... Staff . ... Galaxies, AGN, Cosmology . ... A new survey of X-ray clusters of galaxies with the Swift-X-ray Telescope . ... In this framework, an international collaboration between INAF-OAA, INAF-Brera, INAF-OATs, the University for Science and Technology of China-Hefei, the University of Ferrara, and the University of Massachusetts-Amherst, is undertaking a new cluster survey using an X-ray facility that was never exploited before for this goal: the X-ray Telescope (XRT) onboard the Swift satellite...

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• APOD: 2001 March 11 - NGC 1818: A Young Globular Cluster
• HAEBE Clusters Analysis (Abstract)
• Arcetri Astrogallery - Stellar Clusters (15/24)