3C294: Distant X Ray Galaxy Cluster . ... NASA Explanation: Large clusters of galaxies are the most massive objects in the universe. ... 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 . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...

... July 22, 1999 . Cosmic Collisions in a Galaxy Cluster . ... Eight billion light-years away , the cluster is among the most distant known clusters of galaxies and is now reported to contain the largest number of colliding galaxies ever found in a cluster. ... Though galaxy collisions appear to have occurred much more frequently in the distant, early Universe , they are still seen to happen in the nearby, "close-to-present" Universe. ... About APOD > . ... NASA Technical Rep.: ...

... 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. ...

The HST Key Project to Measure the Hubble Constant . ... H from HST . G. A. Tammann, L. Labhardt, M. Federspiel, A. Sandage, A. Saha, F. D. Macchetto, and N. Panagia . The Hubble Deep Field Observations . R. E. Williams, B. S. Blacker, M. Dickinson, H. C. Ferguson, A. S. Fruchter, M. Giavalisco, R. L. Gilliland, R. A. Lucas, D. B. McElroy, L. D. Petro, and M. Postman . The Hubble Constant via the Leo-I Group . ... Cepheids in NGC 7331 . ... G. P. Di Benedetto . ...

... July 9, 1999 . NGC 7789: Galactic Star Cluster . ... Explanation: At 1.6 billion years old, this cluster of stars is beginning to show its age. NGC 7789 is an open or galactic star cluster about 8,000 light-years distant toward the constellation Cassiopeia and lies near the plane of our Milky Way galaxy. ... These have evolved from main sequence stars like the sun into the gaggle of red giant stars apparent (with a reddish-yellow cast) in this lovely composite color image. ... About APOD > . ...

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 . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... Galaxies . Galaxy Clusters . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... This video shows the distant merging galaxy cluster ACT-CL J0102тИТ4915. ... This newly discovered galaxy cluster has been nicknamed El Gordo тАФ the "big" or "fat one" in Spanish. ...

... 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. ...

... It is notoriously difficult to identify weak cosmic ray events in long exposure observations. ... The method is to compare the probability distribution function (PDF) of cosmic ray events between an observation and a dark frame matched in exposure time. We illustrate the basic idea using dark exposures from a Tek 1024 1024 CCD with varying exposure lengths and read-out times. ... Figure: Histogram of cosmic ray events in a two hour dark frame. ... Original PostScript figure (78 kB) . ...

August 24, 2004 - Dr. Harold McNamara, Professor of Astronomy at Brigham Young University, has retired as Managing Editor of the ASP's Conference Series. Associate Editor Dr. J. Ward Moody, also a Professor of Astronomy at BYU, has been named Interim Managing Editor. In 1968, Dr. McNamara became Editor of the refereed journal Publications of the ASP (PASP). ... Interim Managing Editor J. Ward Moody received his PhD in astronomy from the University of Michigan in 1986. ...

News & Views There seems to be something very healthy about astronomical research when, under the same cover, an event which took place in 1333 AD (Leonid bursts as a resonance meteoroid component from Comet Temple/Tuttle) is discussed followed by a paper on how we might more effectively search for extraterrestrial intelligence (in the optical). In this issue we also have a further paper on young clusters (Praesepe) and the low end of the stellar mass function (see IAJ , 1999, 26(1), 17). ...

Joshua Tusin, Director of Public Relations for JYI , sent us the following description of the journal. ... Feature Editors . ... Inquire with the Director of Public Relations, Joshua Tusin, by e-mailing him at: tusin@jyi.org . The Journal of Young Investigators ( JYI , www.jyi.org) is an on-line science journal dedicated to publishing excellent undergraduate research papers and feature-type science articles covering all fields of science. ... Journal of Young Investigators (http://www.jyi.org) . ...

... 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. ...

. Moscow Mathematical Journal . Published by the Independent University of Moscow . Editors: Yulij Ilyashenko and Michael Tsfasman . MMJ homepage has been moved to new location: www.ams.org/distribution/mmj/ . Download abstracts of volumes 1-2 (2001-2002) [ PDF 312 K ] . Moscow Mathematical Journal . is distributed by the . American Mathematical Society for the . Independent University of Moscow . Online ISSN 1609-4514 . 2002, Independent University of Moscow . Comments: mmj@mccme.ru

... Tonight's Sky . ... The Magazine . News . Observing . ... Community . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... Editors of Astronomy magazine . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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. ...

Intricately structured filaments of gas and dust compose the reflection nebula seen around the Pleiades star cluster. These multiwavelength images were presented to the American Astronomical Society meeting in San Antonio, TX on January 16, 1996. Click here for the press release text . ... The Schmidt data were processed further after this photo release; better versions are now available.] Get image: 512x512 (56k) / 1024x1024 (204k) . Pleiades Far-Infrared Heated Dust Emission . ...

... Primordial theory review : Dick Bond . Defects and the CMB review : Andy Albrecht . ... Gravitational wave contribution to CMB anisotropies : V.B. Lukash and E.V. Mikheeva . C_l from cosmic strings : Lloyd Knox . Some aspects of CMB anisotropies induced from topological defects : Mairi Sakellariadou . ... CMB anisotropies from scaling sources : Ruth Durrer . ... SZ observations I : Sarah Church . ... Holes in the microwave sky? ... Detecting cosmic strings in the CMB : James Robinson . ...

... Edward L. (Ned) Wright received his AB and PhD degrees from Harvard University, and was a Junior Fellow in the Society of Fellows. ... Prof. Wright is interested in infrared astronomy and cosmology. ... He has been working on the COsmic Background Explorer ( COBE ) since 1978. ... Wright, E. L. 2000, ApJ submitted, "DIRBE Minus 2MASS: Confirming the Cosmic Infrared Background at 2.2 Microns" . ... The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background: II. ...

Find Similar Abstracts . ... Intergalactic gas in galactic clusters, the microwave background radiation and cosmology . ... The types of information that can be obtained from astrophysical studies of the microwave background in the direction of galactic clusters and from radio observations of clusters are examined. ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...