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POPSBlack Holes May Act Like Cosmic Factories for Building Galaxies
The stream of material was likely to be fuelling star formation in the galaxy, the scientists believe. In effect, the quasar was building its own host galaxy. At a later stage the quasar was expected to end up at the galaxy’s centre. ‘The two objects are bound to merge in the future: the quasar is moving at a speed of only a few tens of thousands of kilometres per hour with respect to the companion galaxy and their separation is only about 22,000 light-years,’ said lead scientist Dr David Elbaz, from the CEA research institute in Saclay, France. ‘Although the quasar is still ‘naked’, it will eventually be ‘dressed’ when it merges with its star-rich companion. It will then finally reside inside a host galaxy like all other quasars.’ A similar process may have led to the formation of other large galaxies with massive black holes nestling within them, the scientists believe. The research appears in the journals Astronomy & Astrophysics, and the Astrophysical Journal.
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POPSAbout the Author Rocco Leonard Martino Dr. Martino is an international authority on finance, planning, space flight and computer systems. Trained in astrophysics, this rocket scientist was one of the creators of the computer age.
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POPSFree Lectures and Courses... This was clipped some time ago by someone to whom I add thanks. Newer clippers may find it interesting. I've detailed the astronomy items as that is what I was searching for.
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POPSPhysicist unlocking the mysteries of neighboring galaxies "...Our observations also suggest that the Triangulum Galaxy is being ripped apart by Andromeda." Andromeda, and our own galaxy the Milky Way, are the two largest members of a small cluster of galaxies known as the Local Group. Triangulum, the third largest member of the Local Group, is about one-tenth the size of Andromeda. "Within a few billion years Triangulum will be completely destroyed by Andromeda and its stars will be dispersed throughout the Andromeda halo," says Dr. Widrow. "And a few billion years after that, Andromeda and the Milky Way will collide and merge together to form a giant elliptical galaxy."
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POPSDownload Blast Movie BLAST! is a documentary that explores the world of hazardous, hardcore, scientific exploits, directed by Paul Devlin. The director takes us on a journey into the fascinating world of astrophysics with his brother Dr. Mark Devlin, and his devoted team, who fearlessly explore the Big Bang theory. This documentary is directed by Paul Devlin is available on the website for you to download blast movie.
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POPSDiscovered particles from the most massive explosions in the Milky Way. Rest of the article: This star died and exploded in the Milky Way. When a star of this mass dies, most of its material is ejected and ploughs a pathway through a massive, stellar wind. This wind has been created earlier in the death process, when the star lost part of its original mass. The wind blows away from the star, and the final definitive explosion of the star then drives new material through the previously established wind. A shock-wave in space Electrons and positrons are accelerated during the process and create a shock-wave, similar to that formed when an aeroplane breaks the sound barrier. Julia Becker and her colleagues show that it is just such a shock-wave that has created the observed particle flux that has astounded scientists. Wow...
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POPS"Milky Way may have a huge hidden neighbour" more (at source): Right now, says Chakrabarti, the galaxy is roughly 300,000 light years away from us - about twice as far away as the LMC. But the simulations suggest it follows a highly elongated elliptical path, and about 300 million years ago it swept through our own galaxy just 16,000 light years from the galactic centre - closer in than Earth - disturbing the Milky Way's outskirts as it went. "Overall, it is a very plausible scenario," says Abraham Loeb at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts, who was not part of the study. "Of course, the fact that we don't see such a massive satellite is an issue."
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POPSThe Genesis of Bill Nye "We teabagger-Americans have put up with a lot--jokes about grenade sucking, comments about the intelligence of someone who supports Sarah Palin and Joe the Plumber, homosexual teletubbies, sushi--but, by God, we don't need no fancy Seattle science guy coming down to our national homeland, The Republic of Texas, and tellin' us the moon ain't Jesus' light bulb."
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POPSFinding Twin Earths: Harder Than We Thought! For more information, contact: David A. Aguilar Director of Public Affairs Harvard-Smithsonian Center for Astrophysics 617-495-7462 daguilar@cfa.harvard.edu Christine Pulliam Public Affairs Specialist Harvard-Smithsonian Center for Astrophysics 617-495-7463 cpulliam@cfa.harvard.edu
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POPSNumbers in the News "The number itself is incomprehensible by human minds, and can only be theoretically understood in a fractional parallel universe which we refer to as the DC dimension," said Brossard. "The best way to understand a stimulus is to imagine a dollar sign followed by a packed string of hexidecimal nanodigits, wound into a triple helix, woven into a dodecahedron, and stacked on top of one another. Now imagine you were a black hole on the far edge of the universe, trying to escape the stimulus at 30 times the speed of light. The stimulus would still catch up to you and ram your black hole with such furious, repeated force that it would cause your entire reality itself to collapse." "The exciting news is that with more powerful computers and drugs, we believe we are on the verge of discovering an even larger number, which we refer to as a 'stimulusconferencebill,'" said Xiao. "Speaker Pelosi has already promised us the funding."
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