Solving the mystery of JWST's 'impossible' early galaxies
In short: The James Webb Space Telescope revealed ancient galaxies that seemed too massive to exist so soon after the Big Bang. This video explores a new hypothesis that explains how these celestial giants formed without breaking our current understanding of physics.
Astrophysicists have been puzzled by observations of 'overmassive' galaxies in the early universe—objects that appear to have gathered too much mass in too short a timeframe. A researcher, Oxford University astrophysicist Becky Smethurst explores a fresh theory regarding this occurrence.
The core of the mystery lies in how supermassive black holes and their host galaxies co-evolve. While previous models struggled to account for such rapid growth, the new hypothesis suggests these structures may have formed through different mechanisms than previously assumed, potentially involving the energy output from accretion disks orbiting growing black holes.
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Sources
- Summary by Intellect · source: JWST's "overmassive" galaxies problem SOLVED?! | Night Sky News September 2024
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