... 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....

... Credit Copyright: Rogelio Bernal Andreo Explanation: Well over a thousand galaxies are known members of the Virgo Cluster, the closest large cluster of galaxies to our own local group . ... This careful wide-field mosaic of telescopic images clearly records the central region of the Virgo Cluster through faint foreground dust clouds lingering above the plane of our own Milky Way galaxy. The cluster's dominant giant elliptical galaxy M87 , is just below and to the left of the frame center. ...

... 2015 August 4 . Virgo Cluster Galaxies . ... This careful wide-field mosaic of telescopic images clearly records the central region of the Virgo Cluster through faint foreground dust clouds lingering above the plane of our own Milky Way galaxy. ... A closer examination of the image will reveal many Virgo cluster member galaxies as small fuzzy patches. Sliding your cursor over the image will label the larger galaxies using NGC catalog designations. ... About APOD | ...

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Our Galaxy . ... Stars . ... Posted on March 14, 2012 | 23 Comments How big is the largest known star? ... Continue Reading.. ... Posted on November 10, 2011 | ... 2 Comments Once planets orbiting other stars were unknown as they could not be directly observed. ... 5 Comments Once exoplanets, worlds orbiting other stars, were the stuff of science fiction but now we know of literally hundreds of real alien planets circling other stars. ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

... English (Australia) . ... ESO, the European Southern Observatory . ... Prof. T. de Zeeuw . ... ESO's Governing Bodies . ... Travel to ESO Headquarters . ... Visits to ESO Sites . ... Architecture at ESO . Collaborations with ESO . ESO Acronyms . ... ESO . ... Galaxies . ... Video News Releases . ... New on eso.org . ... ESO News . ... This Video News Release is targeted especially at broadcasters for further editing. ... eso0631a . ... Subscribe to receive news from ESO in your language . ...

... Special Reports Giant space cloud may be powered by black holes 17:57 23 April 2007 NewScientist.com news service David Shiga An enormous cloud of roiling plasma in space may be drawing its energy from black holes, new observations suggest. Such clouds might be sources for the mysterious particles that occasionally crash into Earth's atmosphere at ultra - high speed. ... But higher energy particles in the cloud may be able to escape, he says. ...

... Staff . ... Galaxies, AGN, Cosmology . ... Star formation . ... Galaxy archaeology over the last 7 billion years . The stellar populations in galaxies can gain us insight into galaxy evolution. ... The increase of passive galaxies and the decrease of star-forming galaxies from early times to the present-day indicates that the overall star formation activity has declined and galaxies have been transitioning from the active to the passive phase at a fast rate since about 8 billion years ago. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... We now know that globular clusters formed at high redshift and that they survived violent merging events and galaxy metamorphoses with time, preserving the chemo-dynamical record of their parent 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 . ...

... 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. ...

... Comparison of simulations with the large scalтАж . Sidebar Left . Sidebar Top . ... Title: Comparison of simulations with the large scale radio galaxy M87. Description: Comparison between a snapshot from Movie 2 (left panel) with the large scale radio structure of the famous radio galaxy M87. ... Comparison of simulations with the large scale radio galaxy M87. Comparison between a snapshot from Movie 2 (left panel) with the large scale radio structure of the famous radio galaxy M87. ...

... SET т?? ... Star Atlas . ... Globular cluster NGC 2808, elliptical galaxy NGC 2986, and the Sextans Dwarf . ... Phoenix cluster sets record pace at forming stars . ... Stars are forming in the Phoenix cluster at the highest rate ever observed for the middle of a galaxy cluster. ... The frenetic pace of star birth and cooling of gas in the Phoenix cluster are causing the galaxy and the black hole to add mass very quickly т?? an important phase the researchers predict will be relatively short-lived. ...

... 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. ...

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 ...

... Low-Frequency Flux-Density Measurements and Spectral Features of Millisecond Pulsars . ... Radio flux-density measurements for a large sample of millisecond pulsars at a low frequency of 102 MHz are presented. ... The spectra of millisecond and normal pulsars have been found to differ. The spectra of millisecond pulsars have no low-frequency turnover typical of normal pulsars. ...

Supernova 2002bu in NGC 4242 . This page is devoted to information on Supernova 2002bu in NGC 4242 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. This is a type IIn supernova found in a galaxy which is in Canes Venatici. ... Mag . ... 2002/03/28.26 . ... A Leroy image . ... SUPERNOVA 2002bu IN NGC 4242 . ...

... Bad Astronomy . ... Bitesize Astronomy . ... The last step encompassed them all with galaxies , and how we discovered that the Milky Way was not the entire Universe. ... And just like those star clusters, there are different kinds of galaxy clusters. ... There are vast clusters of clusters, called superclusters, which contains hundreds of thousands or even millions of galaxies. ... Our own Galaxy has 400 billion stars in it, yet there are clusters out there with millions of galaxies like our own. ...

Armagh Observatory reports that this week has been one of the hottest on record in Armagh, with exceptional maximum temperatures. The highest temperature, recorded on Tuesday 18th July, was 29.9 degrees Celsius (85.8 degrees Fahrenheit). ... On Monday 17th the maximum was 29.5 C, on Tuesday 18th it was 29.9 C, while on Wednesday 19th the mercury reached 29.6 C. The highest temperature ever recorded in Armagh was 30.3 degrees Celsius (86.5 degrees Fahrenheit) which occurred on 10th July 1934. ...

... 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 . ...