... J102815: A Star That Should Not Exist . ... Why does this star have so few heavy elements? ... Stars born.. ... To some, the outline of the open cluster of stars M6 resembles a butterfly. ... Nebulas appear the same. ... Comet Garradd Passes Ten Thousand Stars . ... This cosmic snapshot composed with image data from NASA's Wide-field Infrared Survey Explorer (WISE) satellite captures a multitude of faint stars and distant galaxies toward the constellation Lyra at wavelengths longer than visible...

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• Астронет > 3C294: Distant X Ray Galaxy Cluster

... Galaxy Cluster in the Early Universe . ... Explanation: Long before medieval alchemists dreamed of transmuting base metals to gold , stellar furnaces in this massive cluster of galaxies - cataloged as RDCS 1252.9-2927 - had transformed light elements into heavy ones . ... The cluster elemental abundances are consistent with the idea that most heavy elements were synthesized early on by massive stars, but current theories suggest that such a massive cluster should be rare in the early Universe . ...

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• APOD: 2001 February 22 - 3C294: Distant X Ray Galaxy Cluster
• APOD: 2014 May 5 - Galaxy Cluster Magnifies Distant Supernova
• APOD: January 14, 1996 - A Distant Cluster of Galaxies

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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• The Galaxy Gallery Page IX: Clusters of Galaxies

... We have simulated the observations of a very distant cluster of galaxies at high redshift. ... The simulations are made for the HST instruments FOC, WFPC II, and the Advanced Camera, and for an 8-m telescope on the ground equipped with adaptive optics. ... A comparison of the fields of view of post-COSTAR HST imaging instruments with the Advanced Camera (AC) and the ground-based adaptive optics camera (AO) is shown in Fig. 1 superimposed on the noise-free cluster simulation. ...

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• High Redshift Cluster Projects
• JWST SODRM Distant Galaxies Cosmology Programs
• MSNBC, 23 March 1998

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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• NGC4666: Secrets of a Starburst Galaxy | Astronotes
• Supernova spotted by Irish astronomer | Astronotes
• Supernova in the Cigar Galaxy | Astronotes

ESO PR Photo 18b/00 . ... Caption : Images of two of the novae in NGC 1316 that were discovered during the observational programme described in this Press Release. ... In particular, no less than four novae were detected in a single giant galaxy within only 11 days . ... Moreover, the discovery of four novae in one galaxy in the Fornax cluster was possible with only 3 hours of observing time per filter. ... ESO Press Information is available on the WWW at . http://www.eso.org/outreach/press-rel/ . ...

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• APOD: May 3, 1997 - Giant Cluster Bends, Breaks Galaxy Images
• APOD: 2000 January 4 - Galaxies Cluster Toward the Great Attractor
• APOD: December 13, 1997 - The Coma Cluster of Galaxies

... Research . ... A rare hybrid morphology radio galaxy . ... In this project we will be able to investigate the environmental effect on star formation and galaxy evolution in individual galaxies falling into the cluster through radio observations of active galactic nuclei (AGN). Current models of galaxy evolution regulate the star formation rates within the simulated galaxies by invoking radio-mode feedback from AGN. ... Julie.Banfield@anu.edu.au . ...

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• COALA - Computational Astrophysics Laboratory
• Philip Lah's Research
• CHIAKI's Research

The picture shows Abell 2218, a rich galaxy cluster composed of thousands of individual galaxies. ... However, it not only magnifies the images of hidden galaxies, but also distorts them into long, thin arcs. ... Multiple distorted images of the same galaxies can be identified by comparing the shape of the galaxies and their color. ... NASA/ESA/Johan Richard (Caltech, USA) Acknowledgement: Davide de Martin James Long (ESA/Hubble) ...

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• What is the heaviest element that astronomers can detect? | Astronomy.com
• Chandra weighs most massive galaxy cluster in distant universe | Astronomy.com
• Astronomers find compact galaxies | Astronomy.com

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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• astro-ph authors/title/abstract search for 'galaxy merging' all years
• Radio galaxies
• Other WWW Sites

.

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• El Gordo: a massive distant merging galaxy cluster
• Ultra-compact dwarf galaxies
• Visible light view of a distant galaxy cluster discovered in the XXL survey

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE ANCIENT UNIVERSE . c) The Age of Light from the Most Distant Galaxies: The "Time Machine" Effect . ... Thus we are actually seeing these galaxies not as they are today, but as they were billions of years ago. ... The Universe: An Overview | ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

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• ASP: Star Science in the Autumn Sky
• ASP: An Ancient Universe - The Age of the Chemical Elements
• ASP: Big Clusters, Tiny Galaxies

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

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• Publications
• SCORPIO: IFP Gallery

Our early publications since 1990 till 1995 year . ... 7.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu.Kniazev, J.A. Stepanian, 1990, Nature, 343, 238, Unusual low heavy-element abundance found in the blue compact galaxy SBS 0335-052 8.Yu.I.Izotov, N.G.Guseva, V.A.Lipovetsky, A.Yu,Kniazev, J.A.Stepanian, 1990, Physical Processes in Fragmentation and Star Formation, 1990, Kluwer Academic Publisher, p.235-240. ... New blue compact dwarf galaxies with low heavy-element abundances. ... 1993. ...

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• Nearby Galaxies Catalogue (NBG)
• A VLA Survey of Rich Clusters of Galaxies III
• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Cl J1449+0856 at z=2 is the most distant galaxy cluster for which an extended X-ray emission has been detected. ...

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• A Statistical Comparison of Line Strength Variations in Coma and Cluster
• Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or
• Discussion

... Dept. for Physics of Stars&Galaxies . ... Using a database view Sloan Digital Sky Survey (SDSS), containing almost a million spectra created 15,000 sample galaxies with active star formation, which is used for various studies and physical state of evolution of galaxies. ... Star clusters of the Galaxy . The project MWSC (Milky Way Star Clusters) directory using 2MASS, which includes nearly 500 million vision to the limit Ks = 15.3, analyzed more than 4,000 cluster-like objects in the galaxy. ...

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• Dept. for Physics of Stars&Galaxies
• КАРТОТЕКА ПУБЛ?КАЦ?Й СП?ВРОБ?ТНИК?В ГАО НАН УКРА?НИ
• Publications

... Confirmation that a mysterious cloud of hydrogen in the Virgo Cluster is a dark galaxy has been published by a team of astronomers . New evidence from NASA's Hubble Space Telescope and the Westerbork Synthesis Radio Telescope in the Netherlands has been used to rule out all but one of the ideas put forward to explain the existence of VIRGOHI 21, an intergalactic gas cloud 50 million light-years from the Earth. ... Only Dark Matter can account for the existence of such a system. ...

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• The Evolution of Galaxies Seen Through The Neutral Hydrogen Line The Evolution
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters
• AGES - the Arecibo Galaxy Environment Survey

... The main field of our team interests is the researching of galaxy clusters as well as single nearby galaxies. The galaxies and galaxy clusters, being gravitationaly bound and reliably distinguishable systems, allow us to determine their global physical characteristics. At the same time they are integrated as elements into higher level spatial structures or systems. ... Вack to main homepage . ...

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• important_en
• RCJ0311+0507
• articles_alex_01

... Home Gallery Astrophotography Deep Sky Images by Joe DiNapoli . ... Deep Sky Images by Joe DiNapoli . ... Deep Sky Gallery by Ed Fox . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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• Deep Sky Gallery by Ed Fox ? Amateur Astronomers Association of New York
• Observing Resources for Amateur Astronomers ? Part 3: Advanced Observers ?
• Astro-Imaging ? Page 8 ? Amateur Astronomers Association of New York

... 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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• The AstroStat Slog GRB
• The AstroStat Slog data mining
• The AstroStat Slog Blog Archive my first AAS. IV. clustering

... Courtesy of NASA/ESA Observation data (J2000 epoch) Constellation Right ascension Declination Redshift Distance Type Serpens Caput 15h 17m 14.4s[] +21° 35 08[] 12,740±50 km/s[][1] 600±30 Mly (183±8 Mpc)[1] SA0(r) [citation needed ] [a] Apparent dimensions (V) 0.28 в 0.28[] Apparent magnitude (V) 16.0[] Notable features Ring galaxy Other designations PGC 54559,[] PRC D-51[] See also: Galaxy, List of galaxies Hoag's Object is a non-typical galaxy of the type known as a ring galaxy. ...

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