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Topic: Gravastar

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	Gravastar - Wikipedia, the free encyclopedia
		Instead of a star collapsing into a pinpoint of space with virtually infinite density, the gravastar theory proposes that as an object gravitationally collapses, space itself undergoes a phase transition preventing further collapse, being transformed into a spherical void surrounded by a form of super-dense matter.
		The violent creation of a gravastar might be an alternate explanation for gamma ray bursts, adding yet one more speculative possibility to the dozens if not hundreds of ideas that have been proposed as the cause of GRBs.
		Inside a gravastar, space-time would be "totally warped" by the extreme conditions there and the inner space would exert an outward force, like dark energy.
	en.wikipedia.org /wiki/Gravastar (537 words)

	gravastar (Site not responding. Last check: 2007-10-08)
		Instead of a star collapsing into a pinpoint of space with virtually infinite gravity, the gravastar theory proposes that as an object gravitationally collapses, space itself undergoes a phase transition preventing further collapse.
		Mottola and Mazur have suggested that gravastars would be the solution for the fl hole information paradox and that the gravastar might be a source of gamma ray bursters, adding yet one more speculative possibility to the dozens if not hundreds of ideas that have been proposed as the cause of GRB's.
		Inside a gravastar, space-time would be "totally warped" by the extreme conditions there and the inner space would exert an outward force.
	www.yourencyclopedia.net /gravastar.html (395 words)

	SPACE.com -- Thick-Skinned Gravastars Vie to Replace Black Holes, in Theory
		Gravastars would be no less forgiving of what we traditionally call reality.
		Gravastars don't have the same problem, as their entropy is said to be very low.
		The matter inside a gravastar would be akin to the Bose-Einstein condensate.
	www.space.com /scienceastronomy/astronomy/gravastars_020423.html (1006 words)

	Black holes fact or fiction?
		And the entropy of a gravastar would be much lower than that of any star that might collapse to form it, dodging the problem of excessive entropy that plagues fl holes.
		Mottola says that if you scale the size of a gravastar up to around the size of the visible Universe, the pressure of the vacuum inside roughly matches the pressure that seems to be accelerating the expansion of the Universe.
		The exact nature of the exotic stuff inside the gravastar shell is still open to debate, and they hope to find out whether gravastars can really form in the mayhem of a star's violent death-and whether gravastars could merge to form the heavyweight objects that sit at the centre of galaxies.
	www.eurekalert.org /pub_releases/2002-01/ns-bhf011602.php (2643 words)

	Gravastar - RadioDirectory.com (Site not responding. Last check: 2007-10-08)
		First up is Gravastar (The full version) it's almost 8 minutes of rolling sci-fi sounds and euphoric atmospheres, weaving solid house beat sounds and both uplifting and depressing melodies, Hybrid create a track equally dance floor oriented and just something you can sit and listen too.
		Gravastar is a mellow bouncy blend that sounds like a typical hybrid tune, although good its maybe not up to some of the original hybrid tracks..
		Had gravastar had the spark of celeb science this would recieve 5 stars without a doubt, both great tunes and its worth buying just for the second track if you ask me.
	www.radiodirectory.com /ukstoreproductsB000070GLP.html (426 words)

	Augusta Georgia: Technology:Casting doubt on black holes 04/03/02
		Unlike a fl hole, a gravastar would not collapse all the way into a singularity, instead stabilizing somewhere en route.
		As Mazur and Mottola explain, a gravastar wouldn't be matter as we normally conceive of it.
		A gravastar would be a star-size analogy to a "Bose-Einstein condensate," a subject of much scientific excitement in recent years.
	www.augustachronicle.com /stories/040302/tec_124-7307.shtml (1072 words)

	Strategic Research/Astrophysics Feature (Site not responding. Last check: 2007-10-08)
		The Gravastar explanation for fl holes helps provide answers to some of the daunting questions raised by traditional fl-hole descriptions.
		The new form of gravitational energy in the interior is akin to a Bose-Einstien condensate, although it appears on the inside to be a bubble of vacuum, hence the term Gra (vitational) Va (cuum) Star, or Gravastar.
		The interior of the Gravastar would be totally warped space-time (the traditional three dimensions plus time).
	www.lanl.gov /orgs/sr/gravistar.shtml (709 words)

	CNN.com - Is black hole theory full of hot air? - January 22, 2002
		The hypotheses could address some perplexing anomalies in fl holes, while at the same time account for indirect observations that seem to support their existence, the astronomers say.
		The shift to a new state would lead to the formation of an exotic new object, the gravastar, a condensed bubble enveloped by a thin spherical shell of gravitational energy.
		In a paper submitted to Physical Review Letters, Mottola and Mazur argue that gravastars are consistent with classical laws of physics but do not have embarrassing inconsistencies as do fl holes.
	archives.cnn.com /2002/TECH/space/01/22/gravastars (611 words)

	sciforums.com - Black Holes, fact or fiction?
		Universe, a gravastar would almost certainly be spinning rapidly.
		gravastars could form in the devastating collapse of a massive star.
		The only reason to consider the gravastars theory is the entropy problem of flholes..
	www.sciforums.com /printthread.php?t=5376 (3400 words)

	Slashdot \| Black Holes Disputed
		Gravastars would be just as much fun for sci-fi buffs -- in fact, they'd be even more ruthless.
		The exact nature of the exotic stuff inside the gravastar shell is still open to debate, and they hope to find out whether gravastars can really form in the mayhem of a star's violent death -- and whether gravastars could merge to form the heavyweight objects that sit at the center of galaxies.
		What I do find interesting is that this gravastar model, like the fl hole model, implies that the universe and fl holes/gravastars are similar in nature: that they belong to the same class of objects.
	slashdot.org /science/02/01/19/0247211.shtml (8223 words)

	sciforums.com - More on Gravastars
		The space trapped inside the Gravastar's shell is a similarly uncanny
		Would this not also indicate that outside each Gravastar, including our own, is matter, and not the unknown void in which the universe is thought to be expanding?
		If the "shell" of the Gravastar is expanding outwards, would it not eventually lose its cohesion and collapse?
	www.sciforums.com /printthread.php?t=7069 (730 words)

	Time For Another PHYSICS Thread: Black Holes Might Be Nonexistant! - @forums (Site not responding. Last check: 2007-10-08)
		object: the "gravastar," a kind of stellar-scale variation on quantum mechanical theory.
		The difference is that a laboratory Bose- Einstein condensate forms from atoms, whereas Mazur and Mottola's star-size "condensate" would form from space-time -- the unified, four-dimensional fabric of space and time, as in Einstein's theories.
		At Chen's invitation, Mottola recently lectured on gravastar theory at a seminar on the Palo Alto campus.
	www.atforumz.com /showthread.php?t=122735 (2340 words)

	Perspectives on Faster-than-Light and Time Travel (warp drive) Technologies Circa 2400 AD-2450 AD
		Gravastars could be strange bubbles of very dense matter: shells of cold, dense matter, filled with an exotic type of space.
		The creation of gravastars might also be an explanation for the source of gamma ray bursters.
		One difference between fl holes and gravastars would be gravastars would allow the escape of more energy than fl holes, as matter fell into them.
	www.jrmooneyham.com /warp.html (11359 words)

	User Posts (Site not responding. Last check: 2007-10-08)
		Using the published theory that the universe as we know may be inside a Gravastar lays the groundwork for my theory, the universe is both expanding and contacting”.
		As “our” Gravastar moves through space and encounters matter, which it draws into itself, the pressure in the Gravastar bubble increases like the air in a balloon when compressed.
		Once the Gravastar entered an area of space where matter was in lesser amount the pressure on the bubble would decrease therefore causing the matter inside (our universe) to contract or at least slow the expansion.
	www.freerepublic.com /focus/user-posts?id=83598 (676 words)

	Linux for PlayStation 2 Community: Project Info - GravaStar
		A short article about this project along with the information according the SPS2 module has been published in the latest issue.
		The press article was also an excellent opportunity to present the background story behind GravaStar.
		From now on you can play GravaStar on your Linux Kit or alternatively, if you don't have the required equipment, you can watch a trailer located on the project page.
	playstation2-linux.com /projects/gravastar (161 words)

	Black holes project (Site not responding. Last check: 2007-10-08)
		So how do you find fl holes?To find a fl hole you look for large amounts of mass in one small area.If it's dark you've probably found a fl hole.
		Two U.S. scientists, Emil Mottola and Pawel Mazur, say that when a star collapses it forms a bubble of superdense matter called a gravastar.
		It looks just like a fl hole except it is lit by the material falling down on it from outside.
	home.columbus.rr.com /videogamenews/Blackholesproject.html (185 words)

	MIND Exchange
		If its going where it apears to be you may have some more of the math done for them.....
		fancy that "oh- sorry about the fl-hole thing kiddies- we really meant this funky dense gravastar thingy"
		Black hole is equal to its event horizon, which is equal to a quantum screen, the most densely packed with qubits.
	www.kurzweilai.net /mindx/show_thread.php?rootID=22813&o=date (529 words)

	Distinctive Breaks - Hybrid - Gravastar & Celebrity Science (DP103) Music.Breaks - 12'' Vinyl (Site not responding. Last check: 2007-10-08)
		Special limited time offer: Order $25 or more and we'll ship your order for free.
		"gravastar" for those unaware (?) is a deep proggy atmospheric break that's been blessing the deck's of the usual suspects such as sasha,digweed and well, you know!
		Anyway, here is Hybrid who we saw on Friday in DC.
	www.chaosexistence.net /showproduct.asp?productid=7141 (221 words)

	City of Heroes Offical Forums (Site not responding. Last check: 2007-10-08)
		I forgot there's a 'feedback and suggestions' button to click on the Petition form
		The Legendary Majestic Gravastar - Lvl 50 Gravity/Radiation Controller
		Re: Kudos to the art team - Lou's Garage
	boards.cityofheroes.com /showflat.php?Number=1670650 (722 words)

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