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Title: Bubble, bubble, flow and Hubble: large scale galaxy flow from cosmological bubble collisions

Abstract

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.

Authors:
Publication Date:
OSTI Identifier:
22272829
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2010; Journal Issue: 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; APPROXIMATIONS; BUBBLES; COSMOLOGY; GALAXIES; INFLATIONARY UNIVERSE; RED SHIFT

Citation Formats

Larjo, Klaus, and Levi, Thomas S., E-mail: larjo@phas.ubc.ca, E-mail: tslevi@phas.ubc.ca. Bubble, bubble, flow and Hubble: large scale galaxy flow from cosmological bubble collisions. United States: N. p., 2010. Web. doi:10.1088/1475-7516/2010/08/034.
Larjo, Klaus, & Levi, Thomas S., E-mail: larjo@phas.ubc.ca, E-mail: tslevi@phas.ubc.ca. Bubble, bubble, flow and Hubble: large scale galaxy flow from cosmological bubble collisions. United States. https://doi.org/10.1088/1475-7516/2010/08/034
Larjo, Klaus, and Levi, Thomas S., E-mail: larjo@phas.ubc.ca, E-mail: tslevi@phas.ubc.ca. 2010. "Bubble, bubble, flow and Hubble: large scale galaxy flow from cosmological bubble collisions". United States. https://doi.org/10.1088/1475-7516/2010/08/034.
@article{osti_22272829,
title = {Bubble, bubble, flow and Hubble: large scale galaxy flow from cosmological bubble collisions},
author = {Larjo, Klaus and Levi, Thomas S., E-mail: larjo@phas.ubc.ca, E-mail: tslevi@phas.ubc.ca},
abstractNote = {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.},
doi = {10.1088/1475-7516/2010/08/034},
url = {https://www.osti.gov/biblio/22272829}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 08,
volume = 2010,
place = {United States},
year = {Sun Aug 01 00:00:00 EDT 2010},
month = {Sun Aug 01 00:00:00 EDT 2010}
}