A black hole is simple and clear, at least according to the model proposed in 1963 by Roy Kerr; his model of a clear, smooth black hole is now the currently accepted paradigm. But a group of scientists led by Thomas Sotiriou, a physicist of the International School for Advanced Studies (SISSA) of Trieste claims that black holes are way “dirtier” than previosuly believed.
According to the traditional model, black holes are defined by only two parameters: mass and angular momentum (rotation velocity). That’s it; no size, no temperature, no nothing – just mass and angular momentum tell you everything you can know about a black hole. Everything that came from the progenitor (the star which collapsed into the black hole) is gone, no memory of it is retained – nor of anything else.
According to the traditional model, black holes are defined by only two parameters: mass and angular momentum (rotation velocity). That’s it; no size, no temperature, no nothing – just mass and angular momentum tell you everything you can know about a black hole. Everything that came from the progenitor (the star which collapsed into the black hole) is gone, no memory of it is retained – nor of anything else.
No comments:
Post a Comment