... 3C294: Distant X Ray Galaxy Cluster . ... Astronomers now realize that a hallmark of these cosmic behemoths are gas clouds with temperatures of tens of millions of degrees that pervade the clusters and radiate strongly in x-rays. 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 . ...

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• Journey to the Center of the Galaxy
• Galactic Center Star Clusters
• Астронет > Journey to the Center of the Galaxy

... 87.1083Owen+ VIII/29 1400-MHz Survey of 1478 Abell Clusters of Galaxies (Owen+ 1982) ================================================================================ A 1400-MHz Survey of 1478 Abell Clusters of Galaxies Owen F.N., White R.A., Hilldrup K.C., Hanisch R.J. =1982AJ.. ... 0,] Major axis error 70- 71 A2 --- n_MajAxi *[ A, B, C,NR, ] Major axis note 73- 74 I2 arcmin MinAxi *? ... Note on dist-C: Ratio of the distance of the source from the cluster center to the corrected Abell cluster...

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• A 20 cm VLA survey of Abell clusters of galaxies
• A VLA Survey of Rich Clusters of Galaxies I.
• Catalog of Galaxies behind the Milky Way

... 2006 August 10 . Galactic Center Star Clusters . ... CXC , NASA . Explanation: If you had x-ray vision , the central regions of our Galaxy would not be hidden from view by cosmic dust clouds. ... Pleasing to look at, the gorgeous false-color representation of x-ray data from the Chandra Observatory shows high energies in blue, medium in green, and low energy x-rays in red. ... It reveals massive, x-ray emitting star clusters in a crowded environment. ... About APOD | ...

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• APOD: 2001 February 22 - 3C294: Distant X Ray Galaxy Cluster
• APOD: 2003 August 4 - In the Center of the Virgo Cluster
• APOD: 2005 February 13 - In the Center of the Virgo Cluster

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...

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... 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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• HST this week
• MARC POSTMAN'S WEBPAGE
• Simulation of a Distant Cluster of Normal Galaxies

... CfA Home . HCO Home . SAO Home . ... Welcome to CfA . CfA History . ... Laboratory Astrophysics . Extreme Astrophysics . ... 617) 495-7210 . ... 617) 495-7044 . ... 617) 495-7265 . ... HEA Research . ... HEA Home Page . CFA/HEA Home Page . ... High Energy Astrophysics Division (HEAD) . Chandra X-ray Center . ... Chandra Cluster Cosmology Project . Chandra Multiwavelength Project (ChaMP) . ... Chandra-Planck Clusters Project . ... CfA Virtual Observatory Project . ...

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• Aneta Siemiginowska - Home Page
• The Chandra Multiwavelength Project (ChaMP)
• Eyes on the Sky, Feet on the Ground: About the Authors

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
• Astronomy HyperText Book: Stellar Clusters
• Astro-2 and the UIT Experiment

I will present theresults from a deep, extended, planetary nebulae survey in a 0.5 sqdeg region centered on the brightest cluster galaxy NGC 4486 (M87) in the Virgo cluster core, carried out with SuprimeCam@Subaru and FLAMES-GIRAFFE@VLT. ... A substructure detected in the projected phase-space of the line-of-sight velocity vs. major axis distance for the M87 halo planetary nebulae provides evidence for the recent accretion event of a satellite galaxy with luminosity twice that of M33. ...

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• Julie Banfield | Astronomer
• GSAOI Super Star Clusters Science Page

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... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

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• Deep Sky Images by Joe DiNapoli ? Amateur Astronomers Association of New York
• lincoln center ? Amateur Astronomers Association of New York
• Franklin Lincoln Center 3 copy 2 ? Amateur Astronomers Association of New York

NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Information . Visitor Center . ... The Observatory . ... Research Areas . ... Radio Astronomy is the study of natural radio energy emitted by galaxies, erupting stars, clouds of gas, pulsars and quasars. The Arecibo Radio Telescope enables astronomers to detect the faint radio emissions from these far off regions of the universe. ... This weak radio echo is collected, focused and detected by the Arecibo Telescope. ...

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• National Astronomy and Ionosphere Center (Arecibo Observatory)
• Astronomers Detect Coolest Radio Star National Astronomy and Ionosphere Center
• New Results Confirm Dark Galaxy Existence

... Research . ... Ljubljana Univ., ... Zagreb Univ., ... Asiago Observatory, Italy . ... ESO, Germany . ... I am an associate astronomer at the European Southern Observatory (ESO). I divide my work between the scientific research and management of the ESO's User Support Department (USD), which is in charge of providing support to observers who use ESO's Paranal Observatory facilities . ... A final standard disclaimer: the opinions expressed in this site do not reflect in any way the opinions of ESO. ...

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• ESO - Studying the Cosmological Evolution of Galaxy Clusters with (Sub-)mm
• ESO - Dynamics of Low-Mass Stellar Systems: From Star Clusters to Dwarf...
• ESO - Thesis Topic: Studying the first galaxy clusters with ALMA

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... Observing . ... Subscriber Extras . ... Web Extras . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Observing springtime deep-sky objects with a large telescope . ... Web Extra: Astronomers animate one of the largest galaxy clusters ever observed . ... At the center of the Phoenix Cluster, a large elliptical galaxy lurks where the hot gas is ejected, giving off unprecedented levels of X-rays, which have been observed by the orbiting Chandra X-ray telescope. ...

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• What are typical star-to-star distances in globular clusters compared to
• A violent, complex scene of colliding galaxy clusters | Astronomy.com
• galaxy clusters | Astronomy.com

... STScI-PRC00-25 A DYING STAR IN GLOBULAR CLUSTER M15 The globular cluster Messier 15 is shown in this color image obtained with the NASA Hubble Space Telescope's Wide Field Planetary Camera 2 (WFPC2). ... Known as Kuestner 648, this was the first planetary nebula to be identified in a globular cluster. ... At the present time, the most massive stars remaining in M15 have about 80 percent of the mass of our Sun, a fact that makes the existence of a planetary nebula like K 648 something of a mystery. ...

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• http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/ViaLattea/9930a-b.txt
• Hubble Reveals Stellar Fireworks Accompanying Galaxy Collision PRC97-34a
• APOD: May 3, 1997 - Giant Cluster Bends, Breaks Galaxy Images

... ATNF Home . About ATNF . ... 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 . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... We construct a new catalog of galaxies in the Ursa Major cluster, a well-known nearby galaxy group, using the SDSS DR7 and NED data. ...

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• The Interacting Galaxy Pair NGC 6872 / IC 4970
• ATNF Colloquium
• On the Gas Surrounding High Redshift Galaxy Clusters1

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
• A Spectacular View of the Lagoon Nebula | Astronotes
• Omega Centauri: globular cluster of 300,000 stars | Astronotes

Title: A Dark-Matter Spike at the Galactic Center? Authors: Piero Ullio , HongSheng Zhao , Marc Kamionkowski . ... Title: The Galaxy Environment of Quasars in the Clowes-Campusano Large Quasar Group at z~1.3 . ... Title: The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger . ... 16 matches for the search pattern galaxy environment . The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/galaxy+environment/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...

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• astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all
• Radio galaxies

... A color image of the Andromeda galaxy always takes a little of my breath away: its golden yellow center, its bluish gossamer arms, its small, burr-like, fuzzy elliptical companion, M32. ... The beautiful images of Andromeda are a start; they give us a sense of what good form is for galaxies like our own. ... Meanwhile, radio astronomers have peered to the very center of the Galaxy and the hungry black hole there; the long radio wavelengths cut right through the dense underbrush of the Galactic...

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• ASP: Big Clusters, Tiny Galaxies
• ASP: Globular Clusters and Satellite Galaxies: Companions to the Milky Way
• ASP: Book Review

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

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• Space Research Institute (IKI) Seminar