Effects of primordial helicity on CMB
β Scribed by T. Kahniashvili
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 191 KB
- Volume
- 50
- Category
- Article
- ISSN
- 1387-6473
No coin nor oath required. For personal study only.
β¦ Synopsis
I present here a brief overview of the effects caused by parity violating cosmological sources (such as magnetic or kinetic helicity) on the CMB fluctuations. I discuss also primordial helicity induced relic gravitational waves. All these effects can serve as cosmological tests for primordial helicity detection.
π SIMILAR VOLUMES
## Abstract Some common properties of helical magnetic fields in decaying and driven turbulence are discussed. These include mainly the inverse cascade that produces fields on progressively larger scales. Magnetic helicity also restricts the evolution of the largeβscale field: the field decays less