... 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. ...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... 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....

... ESO, the European Southern Observatory . ... ESO . ... Galaxy Clusters . ... Star Clusters . ... Video News Releases . ... Stars@ESO . New on eso.org . ... This video sequence shows a comparison of the view of the newly discovered globular cluster VVV CL001 in visible and infrared light. The infrared view, from the VISTA telescope, shows the new cluster very clearly for the first time and allows many of the component stars to be studied. ... Milky Way : Star : Grouping : Cluster : Globular . ...

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

... Shustov B.M., Wiebe D.S. Dust expelling from the Galaxy ( abstract from the journal ). Astronomy Reports , 1995, 39 , 578-586 [AZh, 72 , 650-659]. Wiebe D.S., Shematovich V.I., Shustov B.M. Chemical and dynamical evolution of protostellar clouds: initial stages of collapse ( abstract from the journal ). ... Shustov B.M., Wiebe D.S., Tutukov A.V. Evolution of disk galaxies and loss of heavy elements into the intracluster medium. ... ApJ (Letters), 1998, 503 , L71-L74 ( astro-ph/9806155 ). ...

For the year 2011, 957 supernovae and 39 extragalactic novae were reported . 288 of these supernovae were named by CBAT , 92 were given possible supernova designations, and 505 were not reported to CBAT . 96 supernovae were found in NGC/IC galaxies, 256 were found in named galaxies 429 Type I supernovae were found 389 Type Ia 21 Type Ib 17 Type Ic 5 Type I-pec 160 Type II ...

Astronomy Picture of the Day . Cosmic Collisions in a Galaxy Cluster . ... 22.07.1999 . ... Credit: P. van Dokkum, M. Franx (U. Groningen/ U. Leiden ), ESA , NASA Explanation: Hundreds of galaxies appear as faint smudges of light in this Hubble Space Telescope picture of galaxy cluster MS1054-03. ... July 1999 . ... Publications with keywords: cluster of galaxies - colliding galaxies . Publications with words: cluster of galaxies - colliding galaxies . ... The Hercules Cluster of Galaxies . ...

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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... 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. ...

... 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. ...

... Attention is drawn to the usefulness of a period finding technique which fits harmonic components to the photometric observations. Spectrsocopy shows a peak-to-peak variation in radial velocity of about 30 km/s which, when combined with the photometric observations, confirms the pulsational nature of the variability and strongly indicates that the pulsations are radial in nature. Download paper (gzipped postscript) . Download paper (postscript) ...

... Next: Object Detection Using Up: Object Detection and Previous: Automated Classification of . ... A status report of the The GSC Object Classifier (GOC) project is presented. ... The GSC contains multiple entries for some objects due to plate overlap. It classifies objects as stars, non-stars, galaxies, blends and potential artifacts; the latter three classifications are rare, and only exist in GSC version 1.1, to which they were added manually. ... star, . ... non-star, . ...

... Ipatov A.V., Majorova E.K., Korolkov D.V., Nizhelskij N.A., Timofeeva G.M., Stotskij A.A.. The antenna noise temperature of RATAN-600 radio telescope - analysis and possibility its decrease. XXII All-Union radio astronomical conference. Abstracts reports, Erevan, 1978. ... ХIV All-Union radio astronomical conference. ... Majorova E.K., Nizhelsky N.A., Trushkin S.A., Tsybulyov P.G. The noise temperature and the effective area of RATAN-600 radio telescope equipped with anti-noise screens. ...

... Galaxy clusters in presence of dark energy: a kinetic approach . ... The external regions of galaxy clusters may be under strong influence of the dark energy, which was discovered by observations of supernovae Ia at redshift z < 1. The presence of the dark energy in the gravitational equilibrium equation, with the Einstein ? ... diagram where equilibrium solutions are not possible. ... Galactic Cluster in the Presence of Dark Energy . ...

Andreyev Yu.V., Dmitriev A.S. and Pustovoit V.I. Institue of RadioEngineering and Electronics of RAS . Efremova E.V. Moscow Institue for Physics and Technology . ... Separation of a sum of chaotic signals corrupted by Gaussian channel noise into the components with a method based on chaotic synchronous response is discussed. In order to establish the response, a procedure of iterating the maps, inverse to the maps that generate the chaotic signals, is proposed. ...

Astronomy Discussion Forums . ... What I See . ... Follow Ups | Post Message | ... I have observed the Double Cluster, the BeeHive cluster and other open and various Globular Clusters. My main problem with my 114mm reflector is in its inabliity to bring deep sky objects. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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. ...

... 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. ...