Tag

Super Eddington Accretion

All articles tagged with #super eddington accretion

science7 months ago•77 min saved

Early black holes could gorge growth to birth the first cosmic giants

New computer simulations propose that the first generation of tiny black holes formed in the chaotic, gas-rich early universe could undergo brief, super-Eddington feeding frenzies, rapidly growing into seeds that merge to form the supermassive black holes seen in young galaxies. This mechanism helps explain how SMBHs could exist within the first billion years after the Big Bang, and future space-based gravitational-wave detectors like LISA may observe the mergers of these early black holes.

via Space|

#black-holes #early-universe #gravitational-waves

science11 months ago•3 min saved

Black Hole Surpasses Growth Limit at Record Speed

Scientists have discovered a supermassive black hole in a distant galaxy devouring matter at 2.4 times the Eddington limit, providing evidence for super-Eddington accretion which may explain how black holes grew so rapidly in the early universe, challenging existing theories about black hole formation and growth.

via ScienceAlert|

#black-hole #cosmic-evolution #eddington-limit

science1 year ago•5 min saved

Supermassive Black Holes Challenge Physics with Monstrous Growth

A study using XMM-Newton and Chandra telescopes has linked X-ray emissions from 21 distant quasars to rapid growth of supermassive black holes in the early Universe, suggesting they grew through super-Eddington accretion rates. This challenges conventional physics by showing how these black holes, with masses billions of times that of the Sun, formed quickly within a billion years after the Big Bang. The findings, part of the HYPERION project, provide insights for future X-ray missions to better understand the formation of early cosmic structures.

via SciTechDaily|

#cosmic-dawn #quasars #science

science1 year ago•4 min saved

Webb Telescope Uncovers Record-Breaking Black Hole Defying Physics

Astronomers have discovered the fastest-feeding black hole in the early universe, known as LID-568, which has grown to over seven million solar masses in just 12 million years. This black hole's growth rate exceeds the theoretical Eddington limit, suggesting a super-Eddington accretion process. This finding helps explain how supermassive black holes could form so quickly after the Big Bang. The study, utilizing data from the James Webb Space Telescope and Chandra X-ray Observatory, provides insight into the rapid mass growth of black holes in the early universe.

via Space.com|

#black-hole #early-universe #eddington-limit

astronomy2 years ago•3 min saved

"Discovery: NGC 2403 XMM4 Identified as Super-Eddington Neutron Star"

Astronomers have studied NGC 2403 XMM4, an ultraluminous X-ray source, and found that it is a neutron star accreting at super-Eddington rates based on data from various space telescopes. Despite its X-ray luminosity being below the ultraluminous threshold, its spectral behavior is consistent with ultraluminous X-ray sources. The findings suggest that NGC 2403 XMM4 is the third super-Eddington neutron star detected in NGC 2403, with characteristics indicative of super-Eddington accretion.

via Phys.org|

#astronomy #neutron-star #ngc-2403-xmm4