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SuperMassive Blackholes grow from stellar BHs of star formation history?

Published online by Cambridge University Press:  17 August 2016

Brigitte Rocca-Volmerange
Brigitte Rocca-Volmerange*
Affiliation:
CNRS-Institut d'Astrophysique de Paris, 98bis Bd Arago, 75014 Paris, France(and Université Paris Sud) email: [email protected]
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Abstract

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The origin of the supermassive black hole masses MSMBH discovered at the highest redshifts is still actively debated. Moreover the statistically significant relation of MSMBH with bulge luminosities LV, extended on several magnitude orders, confirms a common physical process linking small (≤ 1pc) to large (kpcs) size scales. The Spectral Energy Distributions (SEDs) of two z=3.8 radio galaxies 4C41.17 and TN J2007-1316, best-fitted by evolved early type galaxy and starburst scenarios also imply masses of stellar remnants. Computed with the evolutionary code Pegase.3, the cumulated stellar black hole mass MsBH reach up to several 109M⊙, similar to MSMBH at same z. We propose the SMBH growth is due to the migration of the stellar dense residues (sBH) towards the galaxy core by dynamical friction. Discussed in terms of time-scales, this process which is linking AGN and star formation, also fully justifies the famous relation MSMBH-LV.

Keywords

stars: formationsupernovaegalaxies: evolutionhigh-redshift galaxiesnucleiISM: supernova remnants
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S319: Galaxies at High Redshift and Their Evolution Over Cosmic Time , August 2015 , pp. 64 - 65
Copyright
Copyright © International Astronomical Union 2016 

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