Cosmic string loops as the seeds of super-massive black holes

Journal Article · Mon Jun 01 00:00:00 EDT 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/06/007· OSTI ID:22525797

Bramberger, Sebastian F.; Brandenberger, Robert H.; Jreidini, Paul; Quintin, Jerome ^[1]

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1. Department of Physics, McGill University, 3600 University Street, Montréal, QC, H3A 2T8 Canada (Canada)

Recent discoveries of super-massive black holes at high redshifts indicate a possible tension with the standard ΛCDM paradigm of early universe cosmology which has difficulties in explaining the origin of the required nonlinear compact seeds which trigger the formation of these super-massive black holes. Here we show that cosmic string loops which result from a scaling solution of strings formed during a phase transition in the very early universe lead to an additional source of compact seeds. The number density of string-induced seeds dominates at high redshifts and can help trigger the formation of the observed super-massive black holes.

• OSTI ID: 22525797
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 06; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
BLACK HOLES
COSMOLOGICAL CONSTANT
COSMOLOGY
MATHEMATICAL SOLUTIONS
NONLINEAR PROBLEMS
NONLUMINOUS MATTER
PHASE TRANSFORMATIONS
RED SHIFT
STAR EVOLUTION
UNIVERSE