Published February 15, 2011
| Version v1
Journal article
Cosmic string induced CMB maps
Creators
- 1. Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Centre for Mathematical Sciences, Wilberforce Road, Cambridge CB3 0WA (United Kingdom)
- 2. Max-Planck-Institut fuer extraterrestrische Physik, Giessenbachstrasse 1, 85748 Garching (Germany)
Description
We compute maps of CMB temperature fluctuations seeded by cosmic strings using high resolution simulations of cosmic strings in a Friedmann-Robertson-Walker universe. We create full-sky, 18 deg. and 3 deg. CMB maps, including the relevant string contribution at each resolution from before recombination to today. We extract the angular power spectrum from these maps, demonstrating the importance of recombination effects. We briefly discuss the probability density function of the pixel temperatures, their skewness, and kurtosis.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.83.043516;
- arXiv
- arXiv:1004.2885v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 83
- Journal Issue
- 4
- Journal Page Range
- p. 043516-043516.6
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42103067
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; COMPUTERIZED SIMULATION; DISTRIBUTION; FLUCTUATIONS; PROBABILITY DENSITY FUNCTIONS; RECOMBINATION; RELICT RADIATION; RESOLUTION; SPECTRA; STATISTICS; STRING MODELS; UNIVERSE
- Descriptors DEC
- COMPOSITE MODELS; ELECTROMAGNETIC RADIATION; EXTENDED PARTICLE MODEL; FUNCTIONS; MATHEMATICAL MODELS; MATHEMATICS; MICROWAVE RADIATION; PARTICLE MODELS; QUARK MODEL; RADIATIONS; SIMULATION; VARIATIONS
Optional Information
- Notes
- (c) 2011 American Institute of Physics