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arXiv · astro-ph/0401430

Evidence for Early or Efficient Black-Hole Growth

Abstract

Mass estimates, based on scaling relationships, are presented of central black holes in luminous quasars at a range of redshifts (z < 0.5, 1.2 ~< z ~< 6.3). The data show that very massive (about 10^9 solar masses or larger) black holes appear already at z ~ 6, indicating that they form very early or very fast.

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M. Vestergaard. 2004-01-21. Evidence for Early or Efficient Black-Hole Growth. https://arxiv.org/abs/astro-ph/0401430

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