Cosmic strings on the verge of a gravitational breakdown

Details Cosmic strings on the verge of a gravitational breakdown Cosmic strings on the verge of a gravitational breakdown

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phlb..237..341q&link_type=abstract

Physics Letters B, Volume 237, Issue 3-4, p. 341-347.

Physics

2

Scientific paper

The theory of galaxy formation by cosmic string loops is endangered by experimental bounds on the background of gravitational radiation coming from recent measurements of the millisecond pulsar PSR 1937 + 21 timing stability and from nucleosynthesis. Galaxy formation and bounds on gravitational radiation can be reconciled if the phase transition is inflationary and such that the largest scale crossing outside the horizon during the inflationary era lieshe range between Msolar and 1011Msolar. A simple model with local U(1) cosmic strings and chaotic inflation is analyzed, yielding the corresponding number of e-folds in the interval between 50 and 60.

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