Friday, October 12, 2012

Gabriele Ponti : An AGN torus in our backyard!

I posted an article by Ponti et al. below The question is very interesting. Was there a time when the huge black hole in the center of the Galaxy was more active?

Very likely the answer is yes.

Rashid Sunyaev studies here the problem of matter inflow into black holes.

It is scary!

After hours of computation with professor Jeremiah Ostriker, and Jason Li of Princeton, they conclude that this flow is almost chaotic. It is hard to get a straight answer. General Relativity is a non-linear mathematical theory, just like the weather equations, that Edward Lorenz studied many years ago, not very far from Princeton, at MIT.

So, is the Massive Black Hole in the center, asleep?

Very likely yes.

When will it wake up?

It seems to me, that it is almost a coin toss. What about tomorrow? What about December 21, 2012?

I do not know.

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