Microwave background constraints on extended inflation voids

Details Microwave background constraints on extended inflation voids Microwave background constraints on extended inflation voids

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.253..637l&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 253, Dec. 15, 1991, p. 637-648.

Statistics

Computation

54

Computational Astrophysics, Inflating, Relic Radiation, Universe, Baryons, Cosmic Background Explorer Satellite, Dark Matter, Sky Surveys (Astronomy)

Scientific paper

Extended inflation ends via the nucleation of bubbles of true vacuum, and in principle the earliest bubbles to nucleate can be expanded by the last stages of inflation to astrophysically interesting sizes, giving large voids empty of any matter. Several authors have suggested a link with the observed bubbly large-scale structure in the universe. The constraints on the bubble distribution are examined from the microwave background observations for different types of dark matter. In a baryon-dominated universe, upper limits are obtained on the extended inflation parameters similar to those previously given, but these become somewhat stronger when one includes dark matter. In any scenario, extended inflation cannot by itself be responsible for the bubbly large-scale structure.

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