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Dark Matter Decay

All articles tagged with #dark matter decay

Tiny Dark-Matter Bursts May Kickstart the Universe’s First Supermassive Black Holes
science4 months ago

Tiny Dark-Matter Bursts May Kickstart the Universe’s First Supermassive Black Holes

A new study proposes that tiny energy bursts from decaying dark matter in the early universe could nudge pristine hydrogen gas clouds to collapse faster, facilitating direct-collapse black holes and potentially explaining the unexpectedly early appearance of supermassive black holes seen by JWST. The model highlights axion-like particles in the 24–27 eV range as the right environment to enable rapid formation.

Decaying Dark Matter May Have Seeded the Universe's First Supermassive Black Holes
astronomy4 months ago

Decaying Dark Matter May Have Seeded the Universe's First Supermassive Black Holes

Researchers propose that energy from decaying dark matter could heat primordial gas enough to trigger direct-collapse black holes, potentially seeding the universe's first SMBHs earlier than standard growth models. The idea, spurred by JWST observations of massive black holes within the first billion years, pinpoints a 24–27 eV dark-matter particle as a possible energy source and was published in JCAP on April 14.