Supermassive black hole found only half a billion years after Big Bang
https://arstechnica.com/science/2023/11/half-of-the-mass-of-an-early-galaxy-is-in-its-central-black-hole/
There just isn't time for something that big to grow from a supernova remnant.

Personally I think black holes are just the parts of something much more dense that exploded into the 'universe' as we see it now.
This confirms it
Astronomy has it all upside down as so often?

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On Tuesday, November 7, 2023 at 4:32:07 PM UTC+11, Jan Panteltje wrote:

Supermassive black hole found only half a billion years after Big Bang https://arstechnica.com/science/2023/11/half-of-the-mass-of-an-early-galaxy-is-in-its-central-black-hole/
There just isn't time for something that big to grow from a supernova remnant.

https://en.wikipedia.org/wiki/Primordial_black_hole

Since LIGO demonstrated that stellar mass black holes were around in the early universe, it has seemed likely that a whole range of black holes were created in or shortly after the big bang. They have become a promising dark matter candidates. They have
to be heavier than 10^11 kgm to last until now, which is asteroid mass and about as big as tennis ball. There's no obvious upper limit to their mass, but it seems likely that most of them would have been small.

Personally I think black holes are just the parts of something much more dense that exploded into the 'universe' as we see it now.
This confirms it.

It doesn't. The big bang has to have started off with something very dense indeed but it did have to fly apart to create the universe we can see.

If some of the bits glommed back together to create primordial black shortly after the inflation phase, that doesn't make make them part of the original "something more dense".

Astronomy has it all upside down as so often?

Or Jan Pantelltje has got it wrong again, as he usually does,

--
Bill Sloman, Sydney

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On 07/11/2023 05:31, Jan Panteltje wrote:

Supermassive black hole found only half a billion years after Big Bang
https://arstechnica.com/science/2023/11/half-of-the-mass-of-an-early-galaxy-is-in-its-central-black-hole/
There just isn't time for something that big to grow from a supernova remnant.

I dont' think there are any astrophysicists that think that the super
massive BH at the centre of galaxies formed via the supernova route.
They probably formed because some part of the central region became
dense enough to collapse in a single go.

https://en.wikipedia.org/wiki/Primordial_black_hole

Isn't a bad introduction.

Personally I think black holes are just the parts of something much more dense that exploded into the 'universe' as we see it now.
This confirms it
Astronomy has it all upside down as so often?

It is certainly possible that primordial BH left over from the very
beginning do exist. Efforts have been made to look for the signature evaporation of the smaller ones occurring so far without success.

--
Martin Brown

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On a sunny day (Tue, 7 Nov 2023 10:16:16 +0000) it happened Martin Brown <'''newspam'''@nonad.co.uk> wrote in <uid2pg$v3in$1@dont-email.me>:

On 07/11/2023 05:31, Jan Panteltje wrote:

Supermassive black hole found only half a billion years after Big Bang
https://arstechnica.com/science/2023/11/half-of-the-mass-of-an-early-galaxy-is-in-its-central-black-hole/
There just isn't time for something that big to grow from a supernova remnant.

I dont' think there are any astrophysicists that think that the super
massive BH at the centre of galaxies formed via the supernova route.
They probably formed because some part of the central region became
dense enough to collapse in a single go.

https://en.wikipedia.org/wiki/Primordial_black_hole

Isn't a bad introduction.

Thank you, nice link.

Personally I think black holes are just the parts of something much more dense that exploded into the 'universe' as we see it
now.
This confirms it
Astronomy has it all upside down as so often?

It is certainly possible that primordial BH left over from the very
beginning do exist. Efforts have been made to look for the signature >evaporation of the smaller ones occurring so far without success.

--
Martin Brown

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The idiot Anthony William Sloman <bill.sloman@ieee.org> persisting in being an Off-topic troll...

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Anthony William Sloman <bill.sloman@ieee.org> wrote:

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The idiot Martin Brown <'''newspam'''@nonad.co.uk> persisting in being an Off-topic troll...

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