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Subject: Spacewatch v2.0(Official Science Topic)
shadow27 9.03.24 - 06:19pm
''Astronomers think they've discovered a black hole some 20 million times the mass of the Sun speeding away from the core of a distant galaxy. And as the supermassive black hole barrels through intergalactic space, it's compressing the scant gas and dust available out there, leaving behind a thin line of newly formed stars that's some 200,000 light-years long..''
Could this be how some dwarf galaxies form? Fascinating.. * +
shadow27 9.03.24 - 06:21pm
''We think we're seeing a wake behind the black hole where the gas cools and is able to form stars,'' said Pieter van Dokkum of Yale University, who first identified the star trail, in a NASA release. ''What we're seeing is the aftermath. Like the wake behind a ship, we're seeing the wake behind the black hole.'' * +
shadow27 9.03.24 - 06:22pm
Despite being relatively thin, the black holes stellar wake is packed with plenty of hot blue stars, making it nearly half as bright as the parent galaxy it traces back to. Based on the available evidence, the researchers think this black hole was likely ejected during a complex dance between three supermassive black holes that were involved in a pair of galaxy mergers. If confirmed, this would be the first observational evidence showing that supermassive black holes can be ejected from their parent galaxies. * +
trunking 9.03.24 - 06:24pm
Weird. * +
obi_jon 9.03.24 - 06:56pm
Some black holes might not actually be black holes at all, they might be [link]''Gravastars'':https://youtu.be/Ej9F0hh8rgk?si=M5chhB1z0nIQoEzn[/link]
* +
trunking 9.03.24 - 07:18pm
First time heard of that. * +
obi_jon 9.03.24 - 09:31pm
Me too, it's a brand new theory. *
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