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1. Hubble image of galaxy cluster Abell 3827 showing dark matter distribution |...
... ESO, the European Southern Observatory . ... ESO Acronyms . ... Images . ... Galaxies . Galaxy Clusters . ... This image from the NASA/ESA Hubble Space Telescope shows the rich galaxy cluster Abell 3827. ... The distribution of dark matter in the cluster is shown with blue contour lines. The dark matter clump for the galaxy at the left is significantly displaced from the position of the galaxy itself, possibly implying dark matter-dark matter interactions of an unknown nature are occuring. ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/public/images/eso1514b/ -- 91.3 Кб -- 10.04.2016
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2. Hubble shows us a spectacular star cluster | Astronotes
Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... Monthly Sky Notes . ... By admin October 1, 2010 Posted in: Stars . A sky of blazing stars (Image Credit: NASA/ESA) . Imagine that once the Sun sets, rather than a dark sky sprinkled with a few thousand dim stars, we had a sky blazing with ten thousand or so stars blazing brighter than Venus. ... Planets orbiting stars in the NGC 3603 Young Cluster would experience just such a sky. ...
[ Сохраненная копия ]  Ссылки http://www.armaghplanet.com/blog/hubble-shows-us-a-spectacular-star-cluster.html -- 42.0 Кб -- 09.04.2016
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3. Evidence for Dark Matter
Last time we saw that flat rotation curves for galaxies, when measured in galaxies with extended gas distributions, provides unambiguous data that shows the mass distribution is dominated by an unseen, spherical halo. ... Perhaps only galaxies with extended dark matter halos are capable of retaining large gaseous extents? . ... Clusters of Galaxies: . ... The case of the Cancer cluster: . ... Below is the velocity distribution of galaxies in the Cancer cluster: . ... What's going on in Cancer? ...
[ Сохраненная копия ]  Ссылки http://zebu.uoregon.edu/1997/ph410/l10.html -- 6.1 Кб -- 03.02.1997
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4. http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B4CBAD180-2693-408B-AD1D-DDE2856396E7%7D
This collage shows images of six different galaxy clusters taken with NASA's Hubble Space Telescope and Chandra X-ray Observatory. The clusters were observed in a study of how dark matter in clusters of galaxies behaves when the clusters collide. ... Using visible-light images from Hubble, the team was able to map the post-collision distribution of stars and also of the dark matter (colored in blue), which was traced through its gravitational lensing effects on background light. ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B4CBAD180-2693-408B-AD1D-DDE2856396E7%7D -- 4.2 Кб -- 10.04.2016
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5. APOD Index - Dark Matter
Today's APOD | ... Galaxies rotate and move in clusters as if a tremendous amount of unseen matter is present. ... Specifically, present analyses of above WMAP all-sky image indicate that the universe is 13.7 billion years old (accurate to 1 percent), composed of 73 percent dark energy , 23 percent cold dark matter , and only 4 percent atoms , is currently expanding at the rate of 71 km/sec/ Mpc (accurate to 5 percent), underwent episodes of rapid expansion called inflation , and will expand forever . ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/dark_matter.html -- 8.6 Кб -- 21.12.2007
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6. Dark Matter Ring Modeled around Galaxy Cluster CL0024 17
... Dark Matter Ring Modeled around Galaxy Cluster CL0024 17 . ... A new observation of gravitationally magnified faint galaxies far in the distance behind a massive cluster of galaxies is shedding new dark on the subject. ... A hypothesis for the formation of the huge dark matter ring holds that it is a transient feature formed when galaxy cluster CL0024+17 collided with another cluster of galaxies about one billion years ago, leaving a ring similar to when a rock is thrown in a pond. ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1222015 -- 16.4 Кб -- 16.05.2007
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7. The Panchromatic Hubble Andromeda Treasury. IV. A Probabilistic Approach to
... Using simulated clusters and Markov Chain Monte Carlo sampling of the probability distribution functions, we show that estimates of the MF slope, ЮБ, are unbiased and that the uncertainty, Ю?ЮБ, depends primarily on the number of observed stars and on the range of stellar masses they span, assuming that the uncertainties on individual masses and the completeness are both well characterized. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~kgordon/papers/2013ApJ...762..123W.html -- 6.1 Кб -- 21.01.2016
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8. http://www.mrao.cam.ac.uk/~anthony/latex/Bahcall.ps
The Mass-Density of the Universe and the Distribution of Dark Matter Neta A. Bahcall Princeton University, USA One of the most fundamental questions of cosmology is: How much matter is there in the Universe and how is it distributed? Here we show that several independent measures - including those utilizing clusters of galaxies - all indicate that the mass-density of the Universe is low: only 20-30% of the critical density. ... The results reveal a low den- sity of 0.16+-0.05. ...
[ Текст ]  Ссылки http://www.mrao.cam.ac.uk/~anthony/latex/Bahcall.ps -- 20.8 Кб -- 14.06.2000
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9. Hubble Reveals Stellar Fireworks Accompanying Galaxy Collision PRC97-34a
... October 21, 1997 This Hubble Space Telescope image provides a detailed look at a brilliant "fireworks show" at the center of a collision between two galaxies. ... The respective cores of the twin galaxies are the orange blobs, left and right of image center, crisscrossed by filaments of dark dust. A wide band of chaotic dust, called the overlap region, stretches between the cores of the two galaxies. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Galassie/Heart1-2.html -- 4.4 Кб -- 09.01.2002
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10. SELB Schools Cluster Programme Show | International Year of Astronomy - Beyond
Astronomy Education News . ... T he SELB Schools Cluster Programme is an innovative learning strategy developed by the Armagh Rhymers in collaboration with the Armagh Observatory to teach children science and the arts in a new and fun way. During this programme, children from seven schools in Armagh have learnt astronomy through storytelling and music; and creative writing and music through science and astronomy. ... Schools involved: . ... Armagh Observatory - Astronomy Education . ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/IYA-beyond/news/selb-schools-cluster.html -- 12.5 Кб -- 18.04.2010
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11. IAU Commission #34 (Interstellar Matter)
... 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. ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~mad/M87pr.html -- 10.5 Кб -- 09.04.2016
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12. NGC 2915: The Darkest Spiral Galaxy
Gerhardt Meurer (Johns Hopkins University) . The accompanying picture shows NGC 2915, which Australian, Canadian, and American astronomers have shown to be the darkest known disk galaxy. ... The team of astronomers, lead by Gerhardt Meurer at Johns Hopkins University, analyzed the rotation of the galaxy and showed that NGC 2915 is composed mostly of "dark matter". Dark matter is extremely difficult to detect since it does not emit any radiation. ... Gerhardt R. Meurer . ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/people/Baerbel.Koribalski/ngc2915/n2915.html -- 3.9 Кб -- 02.10.2012
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13. astro-ph authors/title/abstract search for 'galaxy cluster' (skipped 200) all
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 . ...
[ Сохраненная копия ]  Ссылки http://sed.sao.ru/lit/gal_clust3.html -- 18.6 Кб -- 17.07.2001
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14. Population of Galactic globular clusters, figures
. F IGURE . 13. The (a) metallicity and (b) age distributions of the globular clusters of Galactic origin. Different shadings are used to show the thick-disk and old-halo clusters. The curves are Gaussian fits to the corresponding histograms. discussion in the text | privious figure | next figure .
[ Сохраненная копия ]  Ссылки http://ip.rsu.ru/~marsakov/paper5/p5fg13_1.htm -- 2.0 Кб -- 02.02.2007
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15. PAUL J. GREEN - Page de la Maison
... If the doors of perception were cleansed every thing would appear to man as it is, Infinite. For man has closed himself up, till he sees all things thro' narrow chinks of his cavern." William Blake, The Marriage of Heaven and Hell . ... Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." ... After sleeping through a hundred million centuries we have finally opened our eyes on a sumptuous planet, sparkling with color, bountiful with life. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/~pgreen/Quotes.html -- 3.3 Кб -- 09.04.2016
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16. The summary plot of time distribution of the multisatellites magnetic
The summary plot shows the monthly time distribution of all predicted magnetic conjugations between four spacecraft considered. ... To show the time of conjugation, in frame of the corresponding day for each SC the corresponding colour and line are used: . for the first SC the red color and the first line are used, . ... On the plot the SC names are shown by the corresponding colours. The summary plot permit to find the simultaneous magnetic conjugations of 3 and even 4 satellites. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/vprokhor/descr/sumplot.htm -- 2.5 Кб -- 19.11.1999
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/vprokhor/descr/sumplot.htm -- 2.5 Кб -- 19.11.1999
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17. Amateur Astronomers Association of Princeton
... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...
[ Сохраненная копия ]  Ссылки http://www.princetonastronomy.org/ -- 23.1 Кб -- 02.04.2016
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18. http://www.naic.edu/alfa/ealfa/papers/cortese_iau244.pdf
... This represents the first HI selected sample covering the core and the outskirts of a local cluster of galaxies. ... Optically selected samples miss a considerable number of low luminosity, low surface brightness galaxies underestimating by almost a factor 2 the number of HI rich galaxies present in the cluster volume. ... Right: The g band luminosity function for galaxies in the A1367 volume as obtained from the optically (circles) and HI (histogram) selected sample. ...
[ Текст ]  Ссылки http://www.naic.edu/alfa/ealfa/papers/cortese_iau244.pdf -- 122.5 Кб -- 20.08.2007
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19. http://www.sao.ru/hq/katya/NDG/DVD/Posters/Tepliakova.pdf
Pairs, groups and filaments of dwarf galaxies in the nearby Lynx-Cancer void as a reflection of void Dark Matter distribution Tepliakova A.L.1 , Pustilnik S.A. 1 1 Special Astrophysical Observatory, SAO RAS; Abstract The web of the three-dimensional matter distribution in the Universe is well repro duced in the N-b o dy simulations of Dark Matter in voids, alb eit scaled-down (Gottlo eb er et al. ... The total numb er of the void galaxies also app ears larger than exp ected in simulations. ...
[ Текст ]  Ссылки http://www.sao.ru/hq/katya/NDG/DVD/Posters/Tepliakova.pdf -- 288.4 Кб -- 24.02.2010
[ Текст ]  Ссылки http://mavr.sao.ru/hq/katya/NDG/DVD/Posters/Tepliakova.pdf -- 288.4 Кб -- 01.10.2009
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20. Effect of sources evolution on
... 172 ] Briefly, the count rate at the detector from a source at a redshift z is . ... Figure 55 shows the ``Green functions'' for the double compact binary merging rate   evolution assuming no collapse anisotropy. ... Another way that diverse peculiarities in the - distribution induced by the sources evolution could arise is connected with a possible non-monotonic character of the star formation rate in galaxies. ... 22 ] Figure  56 shows two-dimensional cuts through the parameter space. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node98.html -- 16.9 Кб -- 29.03.1997
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