11-28-2019, 07:49 PM
Getting back on-topic:
New black hole discovered that really shouldn't exist
Observations using the Keck Observatory on Mauna Kea have discovered a massive black hole that's a little surprising - it's too big. There are supermassive black holes in the center of galaxies but these form from several stars plus gas and dust that exists in the center of galaxies. In this case, the black hole is remote and likely formed by a star going supernova, but that shouldn't leave a black hole with a mass of 70 suns.
Likely explanations are a way that black holes form that we don't know about or more than one star was involved in forming the black hole.
https://phys.org/news/2019-11-scientists...-hole.html
"The discovery came as a big surprise. "Black holes of such mass should not even exist in our galaxy, according to most of the current models of stellar evolution," said Prof. LIU. "We thought that very massive stars with the chemical composition typical of our galaxy must shed most of their gas in powerful stellar winds, as they approach the end of their life. Therefore, they should not leave behind such a massive remnant. LB-1 is twice as massive as what we thought possible. Now theorists will have to take up the challenge of explaining its formation.""
New black hole discovered that really shouldn't exist
Observations using the Keck Observatory on Mauna Kea have discovered a massive black hole that's a little surprising - it's too big. There are supermassive black holes in the center of galaxies but these form from several stars plus gas and dust that exists in the center of galaxies. In this case, the black hole is remote and likely formed by a star going supernova, but that shouldn't leave a black hole with a mass of 70 suns.
Likely explanations are a way that black holes form that we don't know about or more than one star was involved in forming the black hole.
https://phys.org/news/2019-11-scientists...-hole.html
"The discovery came as a big surprise. "Black holes of such mass should not even exist in our galaxy, according to most of the current models of stellar evolution," said Prof. LIU. "We thought that very massive stars with the chemical composition typical of our galaxy must shed most of their gas in powerful stellar winds, as they approach the end of their life. Therefore, they should not leave behind such a massive remnant. LB-1 is twice as massive as what we thought possible. Now theorists will have to take up the challenge of explaining its formation.""