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The origin of super-massive black holes
- PopIII stars plus
- sustained super-Edd accretion
- metallicity, chemistry & feedback-dep.
- special halos?
- Direct collapse:
- high-resolution,
- chemistry, feedback-dep. growth
- special halos?
Becerra+15,
Kuiper&Hosokawa+19 Volonteri 2012, Rees 1978
Pop-III
Light
Heavy
- Many assumptions, complex physics
- EM predictions not unique
- difficult to make progress
Cosmological sims: BH seeded in ~1010Mo halos
How often does the process need to succeed?