... 2005 September 26 . Streams of Stars in the Virgo Cluster of Galaxies . ... After hundreds of 15-minute exposures taken over two months in early 2004, the result is a dramatically deep and wide angle image of Virgo , the closest cluster of galaxies to our Milky Way Galaxy . ... Inspection of the above image shows unusually large halos for the brightest galaxies as well as unusual faint streams of stars connecting Virgo galaxies that previously appeared unrelated. ... About APOD | ...

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• APOD: September 17, 1995 - Thousands of Coma Cluster Galaxies
• APOD: 2004 October 25 - The Perseus Cluster of Galaxies
• APOD: 2006 March 21 - The Coma Cluster of Galaxies

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm Observations . ... Data Handling and Products . ... ESO Data . ... Studies of the Planck data set with optical and sub-mm follow-up observations give new insights about the early assembly of the first clusters, and the later evolution of their gas content as well as of their population of star-forming galaxies. ...

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• Visible light view of a distant galaxy cluster discovered in the XXL survey
• ESO - Thesis Topic: Studying the first galaxy clusters with ALMA
• ESO - Dynamics of Low-Mass Stellar Systems: From Star Clusters to Dwarf...

... Distortion from a Distant Cluster . ... Hardly noticeable in the original picture is the small cluster of about 15 galaxies nearly 3 billion light-years distant , circled at the lower right. ... As predicted by Einstein's General Relativity theory, the cluster's gravitational mass acts like a lens, bending light and distorting the shape of background galaxies. ... Publications with keywords: gravitational lens - galaxy cluster . Publications with words: gravitational lens - galaxy cluster . ...

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• Hot Gas In Hydra A
• Астронет > Hot Gas In Hydra A
• Streams of Stars in the Virgo 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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• National Astronomy and Ionosphere Center (Arecibo Observatory)
• New Results Confirm Dark Galaxy Existence
• The Evolution of Galaxies Seen Through The Neutral Hydrogen Line The Evolution

... May 3, 1997 . Giant Cluster Bends, Breaks Galaxy Images . ... Explanation : What are those strange blue objects? Many are images of a single, unusual, beaded, blue, ring-like galaxy which just happens to line-up behind a giant cluster of galaxies. ... The distinctive shape of this background galaxy -- which is probably just forming -- has allowed astronomers to deduce that it has separate images at 4, 8, 9 and 10 o'clock, from the center of the cluster. ... About APOD > . ...

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• APOD: December 13, 1997 - The Coma Cluster of Galaxies
• A new survey of X-ray clusters of galaxies with the Swift-X-ray Telescope
• APOD: December 18, 1999 - Irregular Galaxy Sextans A

... Tonight's Sky . ... News . Observing . ... Sky this Month . ... solar system . ... Observing Podcasts . Observe the Solar System . Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . Springtime observing for small telescopes . ... National Solar Observatory, Sunspot, New Mexico . ... Join Astronomy for America's 2017 total solar eclipse! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,
• Another violent galaxy cluster collision discovered | Astronomy.com
• What's the difference between globular clusters and dwarf spheroidal galaxies?

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Portrait of Sir William Herschel (1738-1822) Royal Astronomical Society . Probably the most famous astronomer of the 18th century, Sir William Herschel discovered, in addition to the planet Uranus, many new nebulae, clusters of stars and binary stars. ... Other Herschel Family Portraits . Mirror by Herschel . Return to A Short History of Armagh Observatory . Last Revised: 2009 November 23rd . ...

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• Armagh Observatory
• Spread of Life through the Galaxy
• JLE Dreyer

... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...

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• Spectrum-Roentgen-Gamma - The astrophysical Project at IKI RAN
• z90-program

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Starbursts are short-lived events, stars are forming so quickly that the reservoirs of interstellar gas from which stars are coalescing would be used up on a timescale much shorter than the age of the galaxy . ... Strong stellar winds from giant new stars in the starburst region combine with the blasts of supernovae to push a mighty flood of extremely hot gas, a ?superwind? from the galaxy thousands of light years into intergalactic space. ...

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• Our Galaxy | Astronotes - Part 5
• Omega Centauri: globular cluster of 300,000 stars | Astronotes
• ESO finds weird doomed planet from another galaxy | Astronotes

... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

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• New LBV Star Discovered in the Galaxy
• Seyfert galaxies
• A unique isolated dwarf spheroidal galaxy KKR25

... Radio source identifications . The Web-server of the Special Astrophysical Observatory supports the mirror version of the Clusters of Galaxies database . At present only the data about radio sources in ACO clusters of galaxies are reasonably complete, while only restricted optical information is in our database. Later on, we also intend to include X-ray data and data about brightest cluster galaxies (BCG). ... ACO: radio optic ( for example, A0690 and " optic "), . ...

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• Gravitational Lensing by Clusters of Galaxies
• Optically detected galaxies with POSSI-E in the "zone of avoidance. I-V
• A 20 cm VLA survey of Abell clusters of galaxies

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Although galaxy mergers are thought to play an important role in forming elliptical galaxies, mergers in galaxy clusters have drawn less attention compared to mergers in field environments due to high peculiar velocities of cluster galaxies. ...

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• Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or
• The Optical Counterparts to Galaxies in the Cen A Group Discovered by HIPASS

... Kalirai and Harvey Richer of the University of British Columbia led the study, which began as an investigation of a globular star cluster in the Milky Way galaxy known as NGC 6397. ... Within the population of stars and galaxies behind NGC 6397, the Hubble image revealed a large elliptical galaxy that contains several hundred globular clusters. ... In fact, a single giant star in NGC 6397 appears 10 million times brighter than one of the distant globular clusters. ...

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• High Redshift Cluster Projects
• STScI Preprint #1244
• GOODS: The Great Observatories Origins Deep Survey

home publications > mercury . ... Big Clusters, Tiny Galaxies . ... Astronomers struggle to understand why giant star clusters form in the tiniest of galaxies . ... These clusters are probably young versions of globular clusters, but they are commonly called super star clusters. Seven dwarf galaxies within 16 million light-years have formed super star clusters, with one of these galaxies, NGC 1569, possessing two young clusters. ... Super star clusters have a lot to tell us about star formation. ...

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• ASP: Globular Clusters and Satellite Galaxies: Companions to the Milky Way
• ASP: Star Science in the Autumn Sky

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

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• Julie Banfield | Astronomer
• THE AUSTRALIAN NATIONAL UNIVERSITY
• Giant Galaxy String Defies Models of How Universe Evolved

... 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
• MAO NASU :: Topic: 1st Announcement IAU Symposium 312 Star Clusters and Black
• The Laboratory of Astrometry

Supernova 1994D is one of the brighter Sn from the recent past. ... The parent galaxy of this SN, NGC 4526 , was also the host galaxy of SN 1969E ( IAUC 2139 ). ... We have a photometry reference image created by Odd Trondal. ... Images of Supernova 1994D . U of Oregon (Electronic Universe) image 3/26/94 8:10 UT, K-band . ... ING image Undated color . SEDS image Undated . SEDS image Undated (zoom in of last image) . ... U of Oregon (Electronic Universe) light curve . ...

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• Supernova 2009js in NGC 918
• Supernova 2002bu in NGC 4242
• Multiple Supernovae in the same galaxy

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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• Other WWW Sites
• Group for study of galaxies and cosmology, history
• astro-ph authors/title/abstract search for 'galaxy merging' all years

Next: Critical Frequencies and Gravitational Previous: Extragalactic Gravitational Wave Background . The number of binaries per frequency decade per solid angle from a separate stellar system (galaxy or cluster of galaxies) is . ... For example, for the Andromeda galaxy M31 ( rad, ) one gets . ... If the angular size of the galaxy is less than the angular resolution of the detector, the critical frequency is independent of the angular resolution, . ...

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• ADS Abstract Service Results
• Gravitational wave background from nearby galaxies
• Astrolinks

... Astrophysics Group . ... MRAO Telescopes . AMI . ... This is a cosmic microwave background (CMB) telelescope with a difference, in that it is designed to survey the sky looking for galaxy clusters by means of the ?shadows? they cast against the CMB. This shadowing, the so-called SZ effect, is a remarkable phenomenon because it is independent of redshift, allowing AMI to find clusters which are so far away that their own emission would be too faint to detect ? ...

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• Astrophysics Group Cosmology
• PPEUC Programme - Cosmic Microwave Background Workshop
• Astrophysics Group AMI Science