Start Presentation: The Compton-thick growth of Supermassive Black Holes constrained

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Author: Johannes Buchner

Homepage: http://astrost.at/istics/

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The Compton-thick growth of Supermassive Black Holes constrained

Abstract: A heavily obscured growth phase of supermassive black holes (SMBH) is thought to be important in the co-evolution with galaxies. X-rays provide a clean and efficient selection of unobscured and obscured AGN. Recent work with deeper observations and improved analysis methodology allowed us to extend constraints to Compton-thick number densities. We present the first luminosity function of Compton-thick AGN at z=0.5-4 and constrain the overall mass density locked into black holes over cosmic time, a fundamental constraint for cosmological simulations. Recent studies including ours find that the obscuration is redshift and luminosity-dependent in a complex way, which rules out entire sets of obscurer models. A new paradigm, the radiation-lifted torus model, is proposed, in which the obscurer is Eddington-rate dependent and accretion creates and displaces torus clouds. We place observational limits on the behaviour of this mechanism.

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Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model Summary
CTK ~ 1/3 (in number and accretion)
Obscured ~ 3/4 (in number and accretion)
Mergers are majority growth mode
Beware of pitfalls of simple methods
Impact of galaxy-scale gas on obscuration?

Poster 106.20: New CLUMPY X-ray spectral model