Black Holes -- Problem and Solution.
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Scenario - A
The Milky Way's Monster Black Hole Has a Cool Gas Halo — Literally
By Charles Q. Choi June 05, 2019
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At the center of our galaxy lies the supermassive black hole
Sagittarius A*, often abbreviated Sgr A*. This giant is about
4 million times the mass of the sun and about 14.6 million
miles (23.6 million kilometers) in diameter.
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Around Sgr A* swirls a ring of debris known as an accretion disk.
The gas within this disk experiences so much friction that it can
reach 18 million degrees Fahrenheit (10 million degrees Celsius),
according to researchers on the new study. Previous research has
detected X-rays near Sgr A*, likely given off from this hot gas.
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Prior research suggests that Sgr A* was also surrounded by
relatively cool gas, with temperatures ranging from about
minus 280 degrees F to 17,500 degrees F (minus 170 degrees C
to 10,000 degrees C). However, it remains uncertain how much
cool gas surrounded Sgr A*.
https://www.space.com/milky-way-monster-black-h