... 2000 December 10 . Too Close to a Black Hole . ... Explanation: What would you see if you went right up to a black hole ? ... On the right is the same star field but this time with a black hole superposed in the center of the frame. The black hole has such strong gravity that light is noticeably bent towards it - causing some very unusual visual distortions . In the distorted frame, every star in the normal frame has at least two bright images - one on each side of the black hole . ...

Еще в разделе: (Показать все результаты (>8689) - www.sai.msu.su/ )

• APOD: 2002 September 8 - Too Close to a Black Hole
• APOD: November 27, 1995 - Too Close to a Black Hole
• APOD: 2011 May 3 - Globular Cluster M15 from Hubble

... Too Close to a Black Hole . ... On the right is the same star field but this time with a black hole superposed in the center of the frame. ... Black holes are thought to be the densest state of matter, and there is indirect evidence for their presence in stellar binary systems and the centers of globular clusters, galaxies, and quasars. ... NASA Official: Jay Norris. ... Publications with keywords: black hole - gravitational lens . Publications with words: black hole - gravitational lens . ...

Еще в разделе: (Показать все результаты (>168149) - www.astronet.ru/ )

• Journal "Peremennye Zvezdy"

... We have simulated the observations of a very distant cluster of galaxies at high redshift. ... The simulations are made for the HST instruments FOC, WFPC II, and the Advanced Camera, and for an 8-m telescope on the ground equipped with adaptive optics. ... A comparison of the fields of view of post-COSTAR HST imaging instruments with the Advanced Camera (AC) and the ground-based adaptive optics camera (AO) is shown in Fig. 1 superimposed on the noise-free cluster simulation. ...

Еще в разделе: (Показать все результаты (>19744) - www.stsci.edu/ )

• M3: An Ideal Laboratory for Testing Stellar Evolution and Dynamics
• Scientific American: Ask the Experts About Astronomy
• VAX Computer Account Request: Science Clusters

... X-rays are made up of photons that are emitted from stars, or quasars, or supernovae, the sun, or simply: anything that is undergoing a change either in size or temperature or giving out heat. ... in an X-ray binary star system, in which one normal star's orbit is crossed by a neutron star, when the neutron star by means of gravitational pull takes matter from the normal star X-rays form. ... Artists conception of a normal star (HDE 226868) and a black hole taking matter from the normal star. ...

Еще в разделе: (Показать все результаты (>4753) - hea-www.harvard.edu/ )

• The AstroStat Slog Blog Archive my first AAS. VI. Normalization
• The AstroStat Slog Globular Clusters
• The AstroStat Slog Blog Archive my first AAS. IV. clustering

Еще в разделе: (Показать все результаты (>203) - www.asc.rssi.ru/ )

• Beloborodov Andrei Mikhailovich, Astro Space Center (ASC)

ESO PR Photo 18b/00 . ... Caption : Images of two of the novae in NGC 1316 that were discovered during the observational programme described in this Press Release. ... In particular, no less than four novae were detected in a single giant galaxy within only 11 days . ... Moreover, the discovery of four novae in one galaxy in the Fornax cluster was possible with only 3 hours of observing time per filter. ... ESO Press Information is available on the WWW at . http://www.eso.org/outreach/press-rel/ . ...

Еще в разделе: (Показать все результаты (>9236) - www.arcetri.astro.it/ )

• APOD: May 24, 1996 - In the Center of 30 Doradus
• APOD: May 22, 1996 - Star Cluster in the Rosette Nebula
• APOD: November 11, 1997 - The Annotated Galactic Center

. " 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."

Еще в разделе: (Показать все результаты (>4462) - www.naic.edu/ )

• The Pleiades
• Astronomers Detect Coolest Radio Star National Astronomy and Ionosphere Center
• pdev_birdies_25jun07

Еще в разделе: (Показать все результаты (>3490) - www.jsc.nasa.gov/ )

• NASA Oral History Project

... 87.1083Owen+ VIII/29 1400-MHz Survey of 1478 Abell Clusters of Galaxies (Owen+ 1982) ================================================================================ A 1400-MHz Survey of 1478 Abell Clusters of Galaxies Owen F.N., White R.A., Hilldrup K.C., Hanisch R.J. =1982AJ.. ... 0,] Major axis error 70- 71 A2 --- n_MajAxi *[ A, B, C,NR, ] Major axis note 73- 74 I2 arcmin MinAxi *? ... Note on dist-C: Ratio of the distance of the source from the cluster center to the corrected Abell cluster...

Еще в разделе: (Показать все результаты (>2375) - www.sao.ru/ )

• A 20 cm VLA survey of Abell clusters of galaxies
• A1190 radio identifications
• A VLA Survey of Rich Clusters of Galaxies I.

home resources > books . SEARCH ASP SITE: Match ALL words Match ANY word . ... Buy The Black Hole at the Center of our Galaxy at Amazon.com! Reviewed by Terrell Kent Holmes . In 1974 astronomers discovered a bright radio source at the center of the Milky Way Galaxy, in the direction of the constellation Sagittarius. It was an unknown quantity then, but astronomers now know that the object is a supermassive black hole causing a maelstrom of activity at the galactic center. ...

Еще в разделе: (Показать все результаты (>1429) - www.astrosociety.org/ )

• ASP: A Thousand Blazing Suns: The Inner Life of Globular Clusters
• ASP: Black Holes to Blackboards: Drifting Through Andromeda
• ASP: Biography of a Star: Our Sun's Birth, Life, and Death

... A few weeks ago, around a galaxy far, far away, a new type of mysterious Б€?darkБ€? star cluster was spotted. Our Galaxy, the Milky Way, is surrounded by about 150 groups of stars, which are called globular clusters. ... A galaxy called Centaurus A (sen-TOR-us Ay) is surrounded by thousands of globular clusters. ... These globular clusters aren't the only dark object in Centaurus A, at the centre of this galaxy lies a black hole that is 55 million times more massive than our Sun! ...

Еще в разделе: (Показать все результаты (>53599) - www.eso.org/ )

• The bright star clusters Messier 47 and Messier 46 in the constellation of
• Anja Feldmeier-Krause
• IAU 207, Extragalactic Star Clusters

... Next: Star Finding and Up: Image Restoration and Previous: Multiresolution and Astronomical . ... Design improvements continue to be made in the filter developed using mathematical morphology principles for the Infrared Astronomical Satellite ( IRAS ) images. The purpose of this filter is to eliminate Galactic cirrus emission from extragalactic fields. ... With an appropriate normalization, the filter curve was applied to each pixel in the image to remove the Galactic cirrus. ...

Еще в разделе: (Показать все результаты (>1847) - www.adass.org/ )

• Unsupervised Catalog Classification
• Recreating Einstein Level One Processing Exposure Masks and Background Maps in
• Classification of Objects in the Guide Star Catalog

... Behemoth black hole found in an unlikely place . ... Spectacularly bright object in Andromeda caused by "normal" black hole . ... A spectacularly bright object recently spotted in one of the Milky Wayт??s neighboring galaxies is the result of a т??normalт?? stellar black hole, astronomers have found. ... Other scientists say ULXs are caused by material being dragged in by an intermediate-sized black hole formed from the merger of many stellar-mass black holes т?? about 1,000 times bigger than the...

Еще в разделе: (Показать все результаты (>7127) - www.astronomy.com/ )

• The Very Large Telescope discovers new kind of globular star cluster |
• Suzaku shows clearest picture yet of Perseus Galaxy Cluster | Astronomy.com
• Soft shells and strange star clusters | Astronomy.com

Elliptical galaxies Elliptical galaxies Rough subdivision Ї Normal ellipticals. ... Dwarf ellipticals (dE's). ... E dE BCD dSph 1013 - 1014 108 - 1013 107 - 109 109 107 - 108 300-1000 1-200 1-10 3 0.1ґ0.5 100 10ґ100 1ґ10 0.1ґ10 5ґ100 Elliptical galaxies Shapes of elliptical galaxies Elliptical galaxies Shapes of elliptical galaxies Elliptical galaxies Shapes of elliptical galaxies Elliptical galaxies Shapes of elliptical galaxies Elliptical galaxies ...

Еще в разделе: (Показать все результаты (>291) - www.astro.spbu.ru/ )

Searching for Ultra Compact Binaries in Globular Clusters What Are Ultra Compact Binaries? ... An ultra compact binary is a binary that consists two white dwarf To source the FITS files that contained the UV images, the sky coordinates stars and has an orbital period shorter than ~70min (A binary and the details on brightness for each star in each globular cluster we were consists of two stars orbiting around their centre of mass, it enables investigating, we used the XMM online archive. ...

Еще в разделе: (Показать все результаты (>3058) - star.arm.ac.uk/ )

• Armagh Observatory
• The Electron Pressure Differential between the Sunspot Plume and the
• Stars Beyond Maturity

... 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 (>1087) - www.cosmos.ru/ )

• Electrons, Ions and Plasma

... 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 . ...

Еще в разделе: (Показать все результаты (>726) - www.mccme.ru/ )

• MCCME: Computer facilities
• Computers
• MCCME: Computer facilities - network

... 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. ...

Еще в разделе: (Показать все результаты (>222) - ocl.sai.msu.ru/ )

• 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. ...

Еще в разделе: (Показать все результаты (>240) - mavr.sao.ru/ )

• Figure 2
• A unique isolated dwarf spheroidal galaxy KKR25

Next: The Model Up: No Title Previous: Radiopulsars as Sources of . In this section, we study the evolution of stellar populations on a time-scale of 10 Myr for a starburst   occurring under conditions similar to those in the Galactic Center (see Lipunov et al. (1995d)[ 126 ]). We estimate the expected number of X-ray transient   sources (NS + MS star), super accreting BH, and BH + supergiant binaries, all as functions of time elapsed after the burst. ...

Еще в разделе: (Показать все результаты (>825) - xray.sai.msu.ru/ )

• References for Scenario Machine
• Population synthesis of X-ray sources at the Galactic center
• The Evolutionary Status of Radiopulsars in Massive Binary Systems