Evidence for Early or Efficient Black-Hole Growth

M. Vestergaard (Ohio State University; Steward Observatory; University of Arizona)

arxiv: astro-ph/0401430 · v1 · submitted 2004-01-21 · 🌌 astro-ph

Evidence for Early or Efficient Black-Hole Growth

M. Vestergaard (Ohio State University , Steward Observatory , University of Arizona) This is my paper

classification 🌌 astro-ph

keywords veryblackearlyholesalreadyappearblack-holecentral

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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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Evidence for Early or Efficient Black-Hole Growth

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