Bubble, bubble, flow and Hubble: large scale galaxy flow from cosmological bubble collisions
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
We study large scale structure in the cosmology of Coleman-de Luccia bubble collisions. Within a set of controlled approximations we calculate the effects on galaxy motion seen from inside a bubble which has undergone such a collision. We find that generically bubble collisions lead to a coherent bulk flow of galaxies on some part of our sky, the details of which depend on the initial conditions of the collision and redshift to the galaxy in question. With other parameters held fixed the effects weaken as the amount of inflation inside our bubble grows, but can produce measurable flows past the number of efolds required to solve the flatness and horizon problems.
- OSTI ID:
- 22272829
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2010, Issue 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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