FORGE'd in FIRE: Resolving the End of Star Formation and Structure of AGN Accretion Disks from Cosmological Initial Conditions — mentioned by andrewflnr

Mon, 15 Jul 2024 17:20:53 GMT

I wonder if this means the standard models, and limits, on black hole growth need to be revised. A lot has been made of the weirdly early, huge black holes that JWST has seen, so if the dynamics here help black holes grow faster, that would help explain those observations. But I can't tell if that's the case from either this press release or linked article. It could be worse for all I can tell. https://arxiv.org/pdf/2309.13115v2

Paper and discussion history. A mention is not an endorsement.

FORGE'd in FIRE: Resolving the End of Star Formation and Structure of AGN Accretion Disks from Cosmological Initial Conditions — mentioned by pmayrgundter

Mon, 08 Jul 2024 11:43:42 GMT

"In two seminal papers from the 1970s that described the accretion disks fueling supermassive black holes, scientists assumed that thermal pressure—the change in pressure caused by the changing temperature of the gas in the disks—played the dominant role in preventing such disks from collapsing under the tremendous gravity they experience close to the black hole. They acknowledged that magnetic fields might play a minor role in helping to shore up the disks. In contrast, the new simulation found that the pressure from the magnetic fields of such disks was actually 10,000 times greater than…

Paper and discussion history. A mention is not an endorsement.

FORGE'd in FIRE: Resolving the End of Star Formation and Structure of AGN Accretion Disks from Cosmological Initial Conditions · HackerPapers discussions

FORGE'd in FIRE: Resolving the End of Star Formation and Structure of AGN Accretion Disks from Cosmological Initial Conditions — mentioned by andrewflnr

FORGE'd in FIRE: Resolving the End of Star Formation and Structure of AGN Accretion Disks from Cosmological Initial Conditions — mentioned by pmayrgundter