Published February 1, 2020
| Version v1
Journal article
Cosmic textures and global monopoles as seeds for super-massive black holes
Creators
- 1. Department of Physics, McGill University, Montréal, QC, H3A 2T8 (Canada)
- 2. CAS Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui 230026 (China)
Description
We consider theories with global monopole or global texture defects and compute the number density of nonlinear seed fluctuations as a function of mass and redshift. Specifically, we focus on the mass range which is expected to be relevant for seeding supermassive black holes. We find that there is an interesting range of symmetry breaking scales for which the density of seeds is larger that what is predicted in the standard cosmological model with Gaussian primordial fluctuations. Hence, global defects may help in light of the mounting tension between the standard cosmological model and observations of supermassive black hole candidates at high redshifts.
Availability note (English)
Available from http://dx.doi.org/10.1088/1475-7516/2020/02/002Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Cosmology and Astroparticle Physics
- Journal Volume
- 2020
- Journal Issue
- 02
- Journal Page Range
- p. 002
- ISSN
- 1475-7516
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 52074276
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BLACK HOLES; COSMOLOGICAL MODELS; DENSITY; FLUCTUATIONS; MASS; RED SHIFT; STANDARD MODEL; SYMMETRY BREAKING
- Descriptors DEC
- FIELD THEORIES; GRAND UNIFIED THEORY; MATHEMATICAL MODELS; PARTICLE MODELS; PHYSICAL PROPERTIES; QUANTUM FIELD THEORY; UNIFIED GAUGE MODELS; VARIATIONS