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Little Red Dots are Tidal Disruption Events in Runaway-Collapsing Clusters

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arxiv 2501.03309 v2 pith:SICUX63R submitted 2025-01-06 astro-ph.GA astro-ph.HE

classification astro-ph.GAastro-ph.HE
keywords blackclusterscollapsedisruptionholemassrunawaystellar
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I hypothesize a physical explanation for the "Little Red Dots" (LRDs) discovered by the James Webb Space Telescope (JWST). The first star formation in the universe occurs in dense clusters, some of which may undergo runaway collapse and form an intermediate mass black hole. This process would appear as a very dense stellar system, with recurring tidal disruption events (TDEs) as stellar material is accreted by the black hole. Such a system would be compact, UV-emitting, and exhibit broad H-alpha emission. If runaway collapse is the primary mechanism for forming massive black hole seeds, this process could be fairly common and explain the large volume densities of LRDs. In order to match the predicted number density of runaway collapse clusters, the tidal disruption rate must be on the order of 10^-4 per year. A top-heavy stellar initial mass function may be required to match observations without exceeding the predicted LambdaCDM mass function. The TDE LRD hypothesis can be verified with followup JWST observations looking for TDE-like variability.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Do Little Red Dots Vary?

    astro-ph.GA 2025-09 conditional novelty 6.0 of 10

    Super-Eddington accretion models can explain why little red dots show almost no variability, whereas standard sub-Eddington AGN variability models predict changes that should already have been seen.

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