Skip to comments.Black holes can grow to 50 billion times the mass of the Sun... and then stop
Posted on 12/21/2015 1:15:25 PM PST by Red Badger
click here to read article
It’s just on hiatus......................
Maybe some anti-matter too.
This is from the same academics that push the climate change BS.
according to my chalkboard, it around 51.
IIt would get a tummy ache bigtime!...................
Something I learned about black holes that blew my mind. There is NO MATTER in the center of a black hole. Matter is collapsed to nothing, thus destroyed, and only the gravity remains.
Perhaps they just don’t understand the gravity of the situation.......................
Just trying to shed some light on the subject.
The article says that black holes can grow to any size by merging with other black holes, but there is an upper mass limit for a black hole growing by accretion of gas in its vicinity. When the black hole gets large enough, the radiation from the accretion zone fills such a large volume surrounding the black hole that the gas cannot cool any more. The volume of a cloud of hot gas increases by the cube of the radius, but the surface area of the cloud only increases by the square of the radius, At some point the surface area is not large enough to dissipate the heat of the enclosed gas cloud. The intense radiation pressure of the black hole thus forces the gas away and it cannot enter the black hole any more. The black hole stops growing at about 10 billion solar masses. Here is a quote from the original article at ArXive:
“As the black hole grows, an outflow drives a shell into the surrounding gas which stalls after a dynamical time-scale at a radius determined by the BH mass. The gas trapped inside this bubble cools, forms stars and is recycled as accretion and outflow. Once the BH reaches a critical mass, this region attains a size such that the gas can no longer cool efficiently. The resulting energy-driven flow expels the remaining gas as a super wind.”
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