Millisecond pulsars, gravitational waves and the inflationary universe

Details Millisecond pulsars, gravitational waves and the inflationary universe Millisecond pulsars, gravitational waves and the inflationary universe

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985natur.313...32k&link_type=abstract

Nature (ISSN 0028-0836), vol. 313, Jan. 3, 1985, p. 32, 33.

Physics

15

Big Bang Cosmology, Gravitational Waves, Pulsars, Universe, Anisotropic Media, Background Radiation, Extremum Values, Quadrupoles, Time Measurement

Scientific paper

The sensitivity of a millisecond pulsar timing signal to the background of gravitational waves expected from an inflationary phase of expansion during the early universe is investigated. The spectrum of such waves, which is flat, extends up to and beyond periods of the order of the present Hubble time. As such, their amplitude can be constrained by measurements of the present quadrupole anisotropy of the blackbody background. It is demonstrated that the bound on inflation derived from millisecond pulsar timing measurements is, at present, much weaker than this bound.

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