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Supermassive Black Holes may be Limited by the Holographic Bound

General Relativity and Gravitation, ISSN: 0001-7701, Vol: 35, Issue: 8, Page: 1337-1349
2003
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  • Citations
    4
    • Citation Indexes
      4

Article Description

Supermassive Black Holes are the most entropic objects found in the universe. The Holographic Bound (HB) to the entropy is used to constrain their formation time with initial masses ∼ 10 M, as inferred from observations. We find that the entropy considerations are more limiting than causality for this "direct" formation. Later we analyze the possibility of SMBHs growing from seed black holes. The growth of the initial mass is studied in the case of accretion of pure radiation and quintessence fields, and we find that there is a class of models that may allow this metamorphosis. Our analysis generalizes recent work for some models of quintessence capable of producing a snbstantial growth in a short time, while simultaneously obeying the causal and Holographic Bound limits.

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