... ESO Acronyms . ... Quasars and Black Holes . ... Black Hole at the Centre of our Galaxy . ... This view shows a simulation of how a gas cloud that has been observed approaching the supermassive black hole at the centre of the galaxy may break apart over the next few years. This is the first time ever that the approach of such a doomed cloud to a supermassive black hole has been observed and it is expected to break up completely during 2013. ... Milky Way : Galaxy : Component : Central Black Hole . ...

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• Simulation of gas cloud approaching the black hole at the centre of the Milky
• Gas cloud being ripped apart by the black hole at the centre of the Milky Way

... 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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... Heavy Black Hole Jets in 4U1630 47 . ... Credit Copyright: NASA , CXC , M. Weiss Explanation: What are black hole jets made of? Many black holes in stellar systems are surely surrounded by disks of gas and plasma gravitationally pulled from a close binary star companion. ... The 4U1630-47 star system is depicted above in an artist's illustration, with a large blue star on the right and jets emanating from a black hole in the center of the accretion disc on the left. ... Orbiting a Black Hole . ...

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• The Diner at the Center of the Galaxy
• Too Close to a Black Hole
• The Black Hole in the Milky Way

... 2013 November 20 . Heavy Black Hole Jets in 4U1630-47 . Illustration Credit: NASA , CXC , M. Weiss . Explanation: What are black hole jets made of? Many black holes in stellar systems are surely surrounded by disks of gas and plasma gravitationally pulled from a close binary star companion. ... The 4U1630-47 star system is depicted above in an artist's illustration, with a large blue star on the right and jets emanating from a black hole in the center of the accretion disc on the left. ...

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• APOD: 2000 January 17 - V4641 Sgr: The Closest Black Hole Candidate
• APOD: 2002 September 8 - Too Close to a Black Hole
• APOD: 2000 December 10 - Too Close to a Black Hole

... 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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• SS433

... 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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• Showcase
• IAU Commission #34 (Interstellar Matter)
• Pink Black Holes: Technical Details

... To demonstrate how a black hole might be formed. ... two balloons (small, round size) two large-mouthed glass jars refrigerator marking pen . ... Prepare two separate jars, with balloons inflated inside each one. ... The balloon in the freezer shrank when the, inside gas pressure decreased, gas pressure is proportional to the gas temperature. ... 1) At room temperature, the pressure of gas inside the balloon pushing out balances the pressure of air outside the balloon pushing in. ...

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• ASP: Black Holes: An Introductory Resource List
• ASP: Black Holes to Blackboards: The Sun is a Mass of Incandescent Gas

... 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: Misconceptions
• Phil Plait's Bad Astronomy: Bad News:

... Special Reports Giant space cloud may be powered by black holes 17:57 23 April 2007 NewScientist.com news service David Shiga An enormous cloud of roiling plasma in space may be drawing its energy from black holes, new observations suggest. Such clouds might be sources for the mysterious particles that occasionally crash into Earth's atmosphere at ultra - high speed. ... But higher energy particles in the cloud may be able to escape, he says. ...

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• http://www.naic.edu/vscience/schedule/tpfiles/HotagA2121tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/HotagA2196tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/HotagA2196tp.ps

... NASA's Hubble Space Telescope offers a stunning unprecedented close-up view of a turbulent firestorm of starbirth along a nearly edge-on dust disk girdling Centaurus A, the nearest active galaxy to Earth. A ground-based telescopic view (upper left insert) shows that the dust lane girdles the entire elliptical galaxy. This lane has long been considered the dust remnant of a smaller spiral galaxy that merged with the large elliptical galaxy. ...

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• Dust grains from the heart of supernovae
• Hubble Finds A Bare Black Hole Pouring Out Light
• A homogeneous chemical analysis of the inner Galactic disk from the first data

... 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,

... IAU Symposium 267: Evolution of Galaxies and Central Black Holes . ... Feedback . Submit Feedback . ... 2016 Spring Symposium . ... IAU Symposium 267 . ... Such feedback, feeding, and their mutual interaction might possibly account for the tight relationship between galactic bulge mass and central black hole mass. ... Session 1. The first galaxies and black holes . ... Quasar and supermassive black hole demographics . ... Black hole masses, scaling relationships, and their evolution . ...

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• Black holes in galactic nuclei
• Active galaxies and black holes
• The Demography of Super-massive Black Holes

... Observing . ... Behemoth black hole found in an unlikely place . ... Gas cloud swings around galactic center black hole . Observations of the heart of our Milky Way have revealed that parts of the infalling gas cloud have already swung past the black hole at our galactic center. ... Recent observations from April of the galactic center have revealed that parts of the infalling gas cloud, which was detected in 2011, have already swung past the black hole at the heart of our Milky Way. ...

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• A black hole's dinner is fast approaching | Astronomy.com
• Web Extra: Black holes in the Milky Way | Astronomy.com
• How stars form close to black holes | Astronomy.com

... Black Holes formation . ... The colloquium will be concentrated on the new lewel of theoretical and experimental understanding of the BH nature and related phenomenae. 10-15-minutes original presentations and short 5-minute presentations for the discussion are welcomed. ... In the case of numerouse proposals talks will be selected by the Organizers. ... Date of the colloquium 03 March 2000 г. We plan, that the final agenda will be announced on the ASA seminar in February. ... List of proposed talks ...

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• Black Hole Creation in Massive Binary Systems
• Black Holes in Binaries
• Black Holes

Next: Elliptical Galaxies. ... NGC 4258 is a nearby ( D = 6.4 Mpc) active spiral galaxy with high luminosity H 2 O maser emission. ... This provides the most compelling evidence so far for a black hole in the centre of a galaxy. ... As NGC 4258, the galaxies NGC 3079, NGC 1068, NGC 4945, and Circinus each host an H 2 0 megamaser (apparent isotropic luminosity > 10 L ). ... Weaker H 2 0 masers are also known in NGC 253, M82 and a few other galaxies (see Greenhill et al. 1990, and references therein). ...

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• ATNF Daily Astronomy Picture
• ATNF Colloquium
• Science Rationale

Blackholes Forum Message . Forums: . ... Black Holes And RedShift . ... Perhaps black holes really are the reproductive means of the universe.Could the black hole of a Quasar red-shift the electromagnetic energy trying to escape it? ... Perhaps black holes treat electromagnetic energy the same way. ... No one really knows enough about Quasars and black holes to say for sure but ask yourself this: Why would all the Quasars in the universe be moving away from the Milky Way? ... www.astronomy.net . ...

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• Black-hole Galaxy Model Of Dark Matter - an Astronomy Net Blackholes2 Forum
• I Agree That Black Holes Must Undue Annihilation - an Astronomy Net Blackholes2
• Reflection From Black Holes - an Astronomy Net Blackholes2 Forum Message

Laboratory of Stellar Physics . ... A study of close binaries with black holes, neutron stars and white dwarfs. ... A study of SS433 - the massive close binary with a black hole in the regime of supercritical accretion . ... A search for intermediate-mass black holes (IMBH). The black holes which are not supermassive black holes observed in quasars, and which were formed not in massive stars. ... A search for new magnetic stars, new CP stars, measurements of magnetic fields in stars . ...

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... These other worlds are the moons of our Solar System , of which there are approximately 170 in orbit around our planets.Some of these moons are very interesting, and have diverse and unique features, very different to our barren, heavily cratered Moon .Jupiter, the largest planet in our solar system has the most moons of any planet with known 64 moons in orbit.The four ... Ganymede, the largest moon in the Solar System thought to have oceans located underneath its icy surface.( ...

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• The Only Joke in Astronomy | Astronotes
• Young Stars in the Small Magellanic Cloud | Astronotes
• M78 off Orion: Bladerunner Nebula? | Astronotes

... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... SUBJECT: 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. 25-29, 2014 . ... which will be held in Beijing, P.R. China, from August 25-29, 2014, hosted by Chinese Academy of Sciences . ... China), . ... 1st Announcement IAU Symposium 312 Star Clusters and Black Holes Across Cosmic Time, Beijing, China, Aug. ...

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• MAO NASU :: Topic: The DRAGON globular cluster simulations: a million stars,

Lectures . ... Home Lectures Lecture Series 2011-2012 Lecture Series 2011-2012 ? тАЬAt Last: Seeing Supermassive Black Holes Shred StarsтАЭ ? Glennys Farrar . ... Lecture Series 2011-2012 . ... Lecture Series . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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