... 2000 October 30 . A Step Toward Gravitational Wave Detection . ... Explanation: Accelerate a charge and you'll get electromagnetic radiation : light. But accelerate any mass and you'll get gravitational radiation . Light is seen all the time, but, so far, a confirmed direct detection of gravitational radiation has yet to be made . ... APOD mourns the recent passing of Joseph Weber , a visionary thinker and pioneer in gravitational wave detection. ... About APOD | ...

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• APOD: 2014 October 26 - Too Close to a Black Hole
• APOD: 2001 October 29 - Spinning Black Holes and MCG 6 30 15
• APOD: 2015 October 20 - When Black Holes Collide

... A Step Toward Gravitational Wave Detection . ... 30.10.2000 . ... Credit: LIGO, Caltech , NSF Explanation: Accelerate a charge and you'll get electromagnetic radiation : light. ... Light is seen all the time, but, so far, a confirmed direct detection of gravitational radiation has yet to be made . ... APOD mourns the recent passing of Joseph Weber , a visionary thinker and pioneer in gravitational wave detection. ... October 2000 . ... Publications with keywords: gravitational radiation - LIGO . ...

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• Too Close to a Black Hole
• Two Black Holes Merge
• Advanced LIGO: Gravitational Wave Detectors Upgraded

... 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. ...

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... Another option is to buy slides of astronomical objects at different wavelengths to show students why astronomers use different bands of the spectrum to bring out specific characteristics in celestial objects. ... He then uses the camera to scan the entire classroom, asking students to identify what they are seeing. ... Once students see light in action, they can investigate its properties - such as frequency, wavelength, and interference - with wave experiments. ...

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• ASP: Black Holes: An Introductory Resource List
• ASP: Black Holes
• ASP: Black Holes to Blackboards: Getting a Global Sense

Black holes . ... Black holes are objects for which the gravitational attraction is so strong that nothing, not even light, can escape from it. ... The material inside a black hole is concentrated into a singularity: a single point of infinitely high density where space and time are infinitely distorted. ... The existence of such black holes has been inferred in cases where the black hole pulls gas of a companion star that orbits around it. ... Gravity's Fatal Atraction: Black Holes in The Universe. ...

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• Dust disk around a black hole in galaxy NGC 7052
• A black hole in the nearby galaxy M32
• HST this week: 271

Blackholes2 Forum Message . Forums: . ... Black Holes Easy Reader. ... To have a Black Hole first you must decide that gravity always is the same no matter how strong it gets. ... So Black Holes may have different sizes. ... Black Holes are a very emotional idea for many of the people who think they are smart and right messages here. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Black Holes And RedShift - an Astronomy Net Blackholes Forum Message
• Use Light Radited From Stars Orbiting The Black Hole - an Astronomy Net
• Black Hole Pump? - an Astronomy Net Blackholes Forum Message

... We have measured this "redshift" for the pink black holes, and allowed for it in our calculations. ... We see this effect in the emission from gas around these pink black holes, but it is far too small an effect to account for the pinkness. Thus the swirling motions of gas around or into the black holes cannot produc the colour. ... At first we thought that these things were normal blue black holes hidden behind clouds of interstellar dust, that absorbed the blue light and made them appear pink. ...

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• IAU Commission #34 (Interstellar Matter)
• Some Black Holes are Pink
• Julie Banfield | Astronomer

... NASA's Hubble Space Telescope has provided a never-before-seen view of a warped disk flooded with a torrent of ultraviolet light from hot gas trapped around a suspected massive black hole. ... This composite image of the core of the galaxy was constructed by combining a visible light image taken with Hubble's Wide Field Planetary Camera 2 (WFPC2), with a separate image taken in ultraviolet light with the Faint Object Camera (FOC). ... The inset box shows Hubble Space Telescope's field of view. ...

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• Hubble Uncovers Dust Disk Around a Massive Black Hole (STScI-PRC98-22) A
• Hubble Provides Multiple Views of How to Feed a Black Hole (PRC98-14)
• Dust evolution across the CO snowline in a protoplanetary disk

... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Merging Black Holes in Galaxies: Galaxy Evolution, AGN and Gravitational Waves . ... The first meeting in an annual series of international astrophysics conferences, co-organized by the Anglo-Australian Observatory and the Australia Telescope National Facility, is now scheduled for 15 to 20 June with the title, "Merging Black Holes in Galaxies: Galaxy Evolution, AGN and Gravitational Waves". ...

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• PPTA Wiki | Links / Papers
• Black Hole Mass Estimates of Radio-selected Quasars
• ATNF Daily Astronomy Picture

... The event horizon is the boundary of a black hole) . ... When the supermassive star implodes (collapses under it?s own gravity) a black hole is formed. Many black holes have been found in the centres of galaxies. ... It was thought that black holes don?t give out any energy at all (except when engulfing stars). ... It is thought that as the stars pass near to the centre, they are pulled in by the black hole and forced to remain orbiting around the black hole. ...

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• Strong Gravity in the Vicinity of Supermassive Black Holes - by Eamon Scullion,
• Stars Beyond Maturity

... Using the amazing power of the ALMA telescope, astronomers have unlocked some of the mysteries surrounding supermassive black holes that lie at the centre of galaxies. ... Well, supermassive black holes are the largest type of black hole . ... Astronomers are almost certain that we have a supermassive black hole at the centre of our own galaxy, the Milky Way. In fact, it is now widely accepted that there is a supermassive black hole at the centre of most galaxies. ...

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• Feeding the Monster | ESO
• First Light for the Active Phasing Experiment - a step towards the E-ELT | ESO
• ESO - Thesis Topic: How much can a supermassive black hole consume?

... SS433 is a close binary system, one star is a supergiant, a second one is a black hole. ... Even a black hole cannot accept such an enormous mass flux, a supercritical accretion disk appears, all the excess gas glows up to several tens of thousands degrees and is ejected off the disk with enormous velocities. ... SAO researchers have found an evidence of the supercritical accretion onto a black hole in SS433, which follows from a brightness variability of the SS433 disk. ...

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• Detection of unique bright radio flare of X-ray binary
• Metagalaxy sector, archive 2015
• X-rays binary Cyg X-3

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Mad Science
• Phil Plait's Bad Astronomy: Misconceptions

... V4641 Sgr is known as a detached binary containing a 9 Msol. black hole and an A0 type companion. ... Spectra of V4641 Sgr were taken by us using SAO 1-m telescope between May 23.972 and 24.002 UT (the orbital phase of 0.35), wavelength range 3900-7500A, resolution 8A, S/N~30-40. ... These observations show essential light excess over the quiet light level seen only in the orbital phases between -0.25 and +0.25 with the maximum value of 0.15 mag in the V band at the black hole inferior conjunction. ...

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• Vitaly Goranskij, SAI/Moscow Univ.
• GRB follow-up team GRB workshop 2009

... MAO main . ... The DRAGON globular cluster simulations: a million stars, black holes and gravitational waves . ... simulations of globular clusters with a million stars on the high-performance . ... of stars in globular clusters at unprecedented detail but also shed light into . the dark world of black holes. ... clusters of single and binary black holes. ... of a globular cluster. www.mpa-garching.mpg.de/328833/hl201603 . ... MAO/NASU, 27 Akademika Zabolotnoho St. 03680 Kyiv, Ukraine . ...

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• MAO NASU :: Topic: Article to gravitational wave detection by LIGO (1/1)
• MAO NASU :: Topic: 1st Announcement IAU Symposium 312 Star Clusters and Black
• MAO NASU :: Topic: Article to gravitational wave detection by LIGO... N-body

The black hole. ... The black holes are generated in the result of a collapse of giant stars with the mass more than three Sun's masses. ... And moreover the gas near the neutron star or the black hole will get hot and will become a source of high energetic electromagnetic radiation in X-rays and gamma range. ... In the majority of double systems, being the sources of X-rays radiation, the invisible component mass does not exceed the two solar masses, so it is a neutron star. ...

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... Opening of COSMION - 99 Chair - M.Yu.Khlopov 10.50-11.25. A.Yu.Kamenshchik, I.M.Khalatnikov, A.V.Toporensky "Dynamics of Closed Cosmological Model with a Scalar Field" 11.25-12.00. A.A. Starobinsky "A new life of the Lifshitz-Khalatnikov quasi-isotropic solution" Coffee break Chair - A.A.Starobinsky 12.20-12.55. ... M.Yu.Khlopov "Cosmological Consequence of the Particle Theory: Dark Matter, Antimatter and Mirror Matter in the Universe" Coffee break Chair - Yu.N.Parijsky 12.30-13.10. ...

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• Colloquium "BLACK HOLES - 2000"
• Ya.B.Zeldovich publication (full texts)
• My publications

... Abubekerov M.K., Lipunov V.M. "The Lower Temperature Limits Of Accretors" Astronomy Reports, 2003, Vol. 47, Issue 8, pp.679-684. ... Abubekerov M.K., Antokhina E.A., Cherepashchuk A.M. "The Masses of X-ray Pulsars in Binary systems with OB Supergiants" Astronomy Reports, 2004, Vol. ... Abubekerov M.K., Antokhina E.A., Cherepashchuk A.M., Shimanskii V.V. "The Mass of the Compact Object in the Low-Mass X-ray Binary 2S 0921-630" Astronomy Reports Astronomy Reports, 2006, Vol.50, Issue 7, pp.544-552. ...

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... Автокресло Step 1/2/3 Black Renolux - модель с регулируемой в высоту спинкой, вкладышем, ремнями безопасности, глубокими боковинами и подставкой для изменения наклона сидения. ... Цвет: Серый, Черный . ... Цвет: нежно-белый . ... Размер: от 5 до 22 мм . ... Цвет: микс . ... Цвет: бежевый . ... Бумажник водителя Befler "Изящная кошка" выполнен из натуральной кожи красного цвета и украшен декоративным тиснением в виде черной кошки. ... Цвет: Синий . ... 6203830.00.71 - Tom Tailor - Tom Tailor . ...

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• Бра Odeon Light - Odeon Light - Odeon Light Nantes 2941/1W Тонер-картридж OKI
• Mio MiVue 508, Black видеорегистратор - Mio - Mio MiVue 508 Black Куртка муж.
• Dali Акустическая система Dali - Dali - Dali Куртка Quiksilver Zone Jkt Black

... Acceleration of particles in the vicinity of a massive black hole We propose a two-step mechanism for charged particle acceleration in the magnetosphere of a massive black hole surrounded by an accretion disk. Particles first gain energy by stochastic process during the accretion phase. It is shown that effective proton acceleration up to energies eV is possible in the turbulent magnetized accretion disk. ...

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