... 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: 2011 May 3 - Globular Cluster M15 from Hubble
• APOD: 2001 September 10 - Galactic Center Flicker Indicates Black Hole
• APOD: 2013 November 19 - Globular Cluster M15 from Hubble

... CXO , NASA Explanation: Why would the center of our Galaxy flicker? Many astronomers believe the only credible answer involves a black hole . ... This short flicker therefore provides additional evidence that a black hole does indeed reside at our Galaxy's center . ... Publications with keywords: black hole - Galactic Center - Sgr A . Publications with words: black hole - Galactic Center - Sgr A . ... A Laser Strike at the Galactic Center . ... Sgr A*: Fast Stars Near the Galactic Center . ...

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• Астронет > Galactic Center Flicker Indicates Black Hole
• Journey to the Center of the Galaxy
• Астронет > Journey to the Center of the Galaxy

This is the homepage of Andrew Fruchter, an astronomer on the staff of the Space Telescope Science Institute . ... Here you can look at an HST images of the optical counterparts of gamma-ray bursts and their host galaxies. ... Therefore, substantial information on the fine scale structure of objects can be obtained by offsetting the pointing of the telescope between exposures and then combining these "dithered" exposures into a single image. ...

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• HST this week
• M3: An Ideal Laboratory for Testing Stellar Evolution and Dynamics

... May 22, 1996 . Star Cluster in the Rosette Nebula . ... Explanation: Embedded in the center of the colorful and photogenic Rosette Nebula is a bright, young open cluster . The bright blue stars in this cluster, labelled NGC 2244, emit ultraviolet light that knocks electrons away from hydrogen atoms . ... The Rosette Nebula is thousands of light years distant, but light would take only about 100 years to cross it. ... Tomorrow's picture: The Violent Star Cluster 30 Doradus . ... About APOD | ...

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• APOD: May 24, 1996 - In the Center of 30 Doradus
• APOD: February 21, 1996 - Millions of Stars in Omega Centauri
• APOD: 2001 March 11 - NGC 1818: A Young Globular Cluster

Еще в разделе: (Показать все результаты (>228) - www.asc.rssi.ru/ )

... 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. ...

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• A 1400-MHz Survey of 1478 Abell Clusters of Galaxies
• Clusters of Galaxies
• A VLA Survey of Rich Clusters of Galaxies II

. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

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• Astronomers Detect Coolest Radio Star National Astronomy and Ionosphere Center
• The Pleiades
• Pulsar Highlights - A Dozen new MSPs in Globular Clusters

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... Observing may be done from any location. ... See this link for further details, limiting magnitude charts, and star count tables: http://www.imo.net/visual/major/observation/lm Proof Point Information : Shapley-Sawyer Classification: Reference: http://x.astrogeek.org/articles/article.php?article_id=15 Brief Description: I - High concentration toward the center; E.g ., NGC 6864, M75 II - Dense central condensation; E.g ., NGC 7089, M2 III - Strong inner core of stars ; E.g ., ...

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• http://www.atmob.org/about/observing/awards/files/open_cluster_instructions_2011-02-01.pdf
• Amateur Telescope Makers of Boston ATMoB Observing Awards Program

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. ...

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• Astro-2 and the UIT Experiment
• U of O High Energy Physics Seminars
• Astronomy HyperText Book

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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• http://www.mso.anu.edu.au/~bessell/thumbnails/images.txt
• http://www.mso.anu.edu.au/seminars/abstracts/20150804-1100.html
• The High-Z SN Search Description

This image from the NASA/ESA Hubble Space Telescope shows NGC 6388, a dynamically middle-aged globular cluster in the Milky Way. ... A new study using Hubble data has discovered that globular clusters of the same age can have dramatically different distributions of blue straggler stars within them, suggesting that clusters can age at substantially different rates. Credit: NASA/ESA/F. Ferraro (University of Bologna) ...

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• Surprising black-hole discovery changes picture of globular star clusters |
• Web Extra: Astronomers animate one of the largest galaxy clusters ever observed
• Sukaku study points to early cosmic т??seedingт?? | Astronomy.com

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...

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• Doppler Imaging and Flare Activity on HR1099
• Armagh Observatory
• Stars Beyond Maturity

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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• SAI OCL Catalog Description

... Ultraluminous X-ray sources (ULXs) are located in external galaxies, their X-ray luminosities (10 39 - 10 41 erg/s) are thousand times greater than those of brightest black holes in the Galaxy. ULXs may be supercritical accretion disks around black holes of stellar masses (~10 Solar masses) like that in SS433, or they may be a hypothetical intermediate-mass black holes (hundreds - thousands Solar masses) with standard accretion disks. ... 2) The ULX progenitors were ejected from the star clusters. ...

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• Galaxy sector, archive 2012
• Measurement of the dark halo shape in polar ring galaxies

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

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• Moscow Center for Continuous Mathematical Education - Independent University of

... Archives . ... my first AAS. ... I was questioned by two attendees, acquainted before the AAS, if I can suggest them clustering methods relevant to their projects. ... classification vs. clustering or supervised learning vs. unsupervised learning : the former terms from the pairs indicate the fact that the scientist already knows types of objects in his hands. ... Tags: Classification , clustering , cosmology , spatial statistics , supervised learning , test , unsupervised learning . ...

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• High Energy Astrophysics
• Wendy Roberts - Bibliography, Harvard-Smithsonian Center for Astrophysics
• SAO RSDC Home Page - RRA - PSPC

... My primary research interests are the formation and evolution of nuclear star clusters. ... Nuclear star clusters are common objects in nearby galaxies. ... Feldmeier-Krause, A. ; Neumayer, N.; SchУЖdel, R.; Seth, A.; Hilker, M.; de Zeeuw, P. T.; Kuntschner, H.; Walcher, C. J.; LУМtzgendorf, N.; Kissler-Patig, M. Astronomy Astrophysics, accepted, 2015 . ... SchУЖdel, R.; Feldmeier, A. ; Neumayer, N.; Meyer, L.; Yelda, S. Classical and Quantum Gravity, Volume 31, Issue 24, 12/2014 . ... 2014 . ...

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• Marina Rejkuba's Web Site
• Michael Hilker Research
• IAU 207, Extragalactic Star Clusters

... Space Research Institute . Main . ... Main results of the experimental and theoretical research completed in 2009 . ... Direct Measurement of the Contribution of Point Sources to the Galactic Ridge X-ray Emission in Record Deep Observations by the Chandra Observatory . ... These demonstrate that electrons generating hard X-ray intensity have been an initiator and main source of flare plasma heating, the particle acceleration and the plasma heating is a system with positive feed back. ...

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• Main results of the experimental and theoretical research completed in 2010
• (S-7a) The Black Hole at the Center of our Galaxy
• V.G. Petukhov (Khrunichev State Research and Production Space Center).

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

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• Comet Center of SAI: Our observations