NASA clocks 20 million mph winds near black hole

Feb 23, 2012 | Posted by: roboblogger | Full story: Christian Science Monitor

Scientists report record-breaking winds arising from a black hole called IGR J17091-3624. The wind's speed, 20 million miles per hour, would be expected in much larger black holes.

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1 - 4 of 4 Comments Last updated Jun 12, 2012
Tim

Toronto, Canada

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#1
Feb 24, 2012
 

Since: May 12

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#2
May 26, 2012
 
wow

“Geologist [I'm Climate Change]”

Since: Mar 07

Nuneaton

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#3
May 28, 2012
 
Interesting one.

Winds & jets of any size can be expected around black holes as it is a fundamental feature of the black hole that it has an event horizon slightly above which orbiting objects approach c (even if they are by then strange and wierder particles and muons /tauons rather than the classical matter elsewhere.

The observations appear to hold true to the larger more visible supermattive objects in galactic centres. ie. the black hole can have a drag & spin disc related to the ferocious magnetic field surrounding the black hole and its inner accretion disc.

The switch from jets to winds forming large bubbles appears to relate to the mass present in the inner accretion disc and he supply rate which in the case of this star is likely to be variable. and during the wind stage is likely to be quite low.

This is nothing unusual if it is being orbited by a sunlike star during a solar minimum. The companion in rapid orbit is guarenteed to have RS type variability with fast solar cycles if it is a sunlike star. It is also likely that the companion formed out of the accretion disc that was all that remained of the outer layers of the progenitor star when its core collapsed to form the black hole, and its position marks the outer boundary of the drag & spin disc of the black hole when it formed.(inside of that radius the material orbits at differential rate and is constrained to remain in a disc. oustide of the boundary the plasma is free to condense as it is capable of elliptical orbit and collisional density increase...(resulting in the condensation of a large knot of plasma under its own gravity).

The black hole in our galactic centre also at present appears to be a bubble former with a wind.

Have a nice day: Ag

Since: May 12

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#4
Jun 12, 2012
 
20 million mph wind is no joke lol

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