... 2008 February 10 . Abell 2218: A Galaxy Cluster Lens . ... WFPC2 , HST , NASA . Explanation: Gravity can bend light, allowing huge clusters of galaxies to act as telescopes. Almost all of the bright objects in this Hubble Space Telescope image are galaxies in the cluster known as Abell 2218. ... The cluster of galaxies Abell 2218 is itself about three billion light-years away in the northern constellation of the Dragon ( Draco ). ... About APOD | ... A service of: ASD at NASA / GSFC . ...

Еще в разделе: (Показать все результаты (>8350) - www.sai.msu.su/ )

• APOD: 2001 February 22 - 3C294: Distant X Ray Galaxy Cluster
• APOD: 2010 June 20 - Abell 2218: A Galaxy Cluster Lens
• APOD: 2000 February 1 - Abell 2218: A Galaxy Cluster Lens

... Abell 2218: A Galaxy Cluster Lens . ... Gravity can bend light, allowing huge clusters of galaxies to act as telescopes, and distorting images of background galaxies into elongated strands. Almost all of the bright objects in this Hubble Space Telescope image are galaxies in the cluster known as Abell 2218. ... As a result, multiple images of these background galaxies are distorted into long faint arcs -- a simple lensing effect analogous to viewing distant street lamps through a glass of wine . ...

Еще в разделе: (Показать все результаты (>139135) - www.astronet.ru/ )

• Galaxy Cluster Lenses Farthest Known Galaxy
• Abell 370: Galaxy Cluster Gravitational Lens

... 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 > . ...

Еще в разделе: (Показать все результаты (>7144) - www.arcetri.astro.it/ )

• APOD: February 22, 1999 - NGC 1316: After Galaxies Collide
• APOD: February 5, 1996 - COBE Dipole: Speeding Through the Universe
• APOD: February 21, 1996 - Millions of Stars in Omega Centauri

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 . ...

Еще в разделе: (Показать все результаты (>380) - zebu.uoregon.edu/ )

• The Galaxy Gallery Page IX: Clusters of Galaxies
• Astronomy Plus CCD Images of Galaxies

... 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....

Еще в разделе: (Показать все результаты (>16210) - www.stsci.edu/ )

• Simulation of a Distant Cluster of Normal Galaxies
• High Redshift Cluster Projects
• About Our Survey

... 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. ...

Еще в разделе: (Показать все результаты (>767) - jet.sao.ru/ )

. Caltech astronomers used foeground clusters of galaxies as 'natural telescopes' to boost faint signals from the most distant sources. Typical magnification factors are 20 times, thereby bringing into view young galaxies that would otherwise be unobservable. This technique has allowed Caltech astronomers to locate a new population of early feeble sources, which may be sufficiently numerous to be responsible for drawing the so-called Dark Ages to a close. Kneib/Ellis/Caltech Digital Media Center

Еще в разделе: (Показать все результаты (>7412) - www.astronomy.com/ )

• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BA40974EB-F826-4C9E-939E-5BDE888C1B40%7D
• Hubble zooms in on a magnified galaxy | Astronomy.com
• Very distant galaxy cluster confirmed | 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 . ...

Еще в разделе: (Показать все результаты (>54) - sed.sao.ru/ )

• Informational system "Evolution of RG"
• astro-ph authors/title/abstract search for 'galaxy merging' all years
• Other WWW Sites

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. ...

Еще в разделе: (Показать все результаты (>2836) - www.armaghplanet.com/ )

• Hubble Space Telescope sees into Omega Centauri's future | Astronotes
• Omega Centauri: globular cluster of 300,000 stars | Astronotes
• M55 globular cluster seen by ESO | Astronotes

... 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 . ...

Еще в разделе: (Показать все результаты (>623) - www.aaa.org/ )

• Astro-Imaging ? Page 8 ? Amateur Astronomers Association of New York
• Astro-Imaging ? Page 14 ? Amateur Astronomers Association of New York
• Lecture Series 2011-2012 ? тАЬA Ray of Light in a Sea of Dark (Matter)тАЭ ?

.

Еще в разделе: (Показать все результаты (>66813) - www.eso.org/ )

• El Gordo: a massive distant merging galaxy cluster
• Visible light view of a distant galaxy cluster discovered in the XXL survey
• Location of the distant dusty galaxy A1689-zD1 behind the galaxy cluster Abell

This animation shows a galaxy cluster with two mass concentrations (the pink shading indicates the projected mass density) lensing a background field of faint blue galaxies. ... Inside the Einstein ring radius one has radial arcs, and right in the center of the cluster there are demagnified images. The highest magnifications occur at the Einstein ring radius, giving the large tangential arcs. ... Abell 2218 and CL2244-02 are clusters with tangential arcs. ... Tutorial : Part 1 | Part 2 | ...

Еще в разделе: (Показать все результаты (>1643) - www.sao.ru/ )

• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies
• A 20 cm VLA survey of Abell clusters of galaxies
• A VLA Survey of Rich Clusters of Galaxies III

... 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 . ...

Еще в разделе: (Показать все результаты (>699) - www.mso.anu.edu.au/ )

• Philip Lah's Talks
• Philip Lah's Research

... VLA observations and Tully-Fisher distances of gas-poor spiral galaxies in the Virgo Cluster Region . ... The HI-H2 Pressure Relation In Early-Type Galaxies . ... Tracing evolution of early-type spirals through the neutral hydrogen window . ... An Arecibo HI 21-cm Absorption Survey of Rich Abell Clusters . ... The Arecibo Ultra-Deep Survey . ... Absorption in varying galactic environments seen in HI surveys . ... Early-type galaxies with neutral hydrogen in the Virgo cluster from the ALFALFA survey ...

Еще в разделе: (Показать все результаты (>2924) - www.naic.edu/ )

• New Results Confirm Dark Galaxy Existence
• The Evolution of Galaxies through the Neutral Hydrogen Window The Evolution of
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters

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 | ...

Еще в разделе: (Показать все результаты (>1329) - www.astrosociety.org/ )

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

... 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. ...

Еще в разделе: (Показать все результаты (>19238) - www.atnf.csiro.au/ )

• ATNF Daily Astronomy Picture
• A Statistical Comparison of Line Strength Variations in Coma and Cluster
• ATNF Colloquium

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, . ...

Еще в разделе: (Показать все результаты (>527) - xray.sai.msu.ru/ )

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

... О Далекой Галактике . ... Теперь в Далекой Галактике вы всегда можете увидеть свежие фотографии Солнца. ... Форум . Форум "Далекой Галактики" - прекрасное место для общения всех астрономов. ... Новости из космоса . ... Подписаться на новости Далекой Галактики Вы можете здесь: . ... Новости из Далекой Галактики - популярно об Астрономии . ... Если вы хотите выразить свое мнение о сайте "Далекая Галактика", или просто почитать мнения других посетителей - пожалуйста, заходите в Гостевую книгу . ...

Еще в разделе: (Показать все результаты (>3) - fargalaxy.al.ru/ )

... 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. ...

Еще в разделе: (Показать все результаты (>923) - www.cosmos.ru/ )

• Main results of the experimental and theoretical research completed in 2010

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Biography: From his schooldays in Copenhagen, J.L.E. Dreyer showed unusual ability in history, mathematics and physics - the subjects which were to form the background to his later work. ... From 1878-1882 he became assistant at Dunsink Observatory before moving to Armagh where he became Director in 1882. ... A Short History of Armagh Observatory . ... Dreyer's History of the Armagh Observatory . ...

Еще в разделе: (Показать все результаты (>2584) - star.arm.ac.uk/ )

• William Herschel
• Armagh Observatory
• FETTU - Page 1