Visibility of pregalactic fluctuations and an upper limit Q sub 0

Details Visibility of pregalactic fluctuations and an upper limit Q sub 0 Visibility of pregalactic fluctuations and an upper limit Q sub 0

Sep 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....78...78b&link_type=abstract

Astronomy and Astrophysics, vol. 78, no. 1, Sept. 1979, p. 78-81.

Astronomy and Astrophysics

Astrophysics

1

Cosmic Dust, Cosmology, Intergalactic Media, Background Noise, Free Electrons, Microwaves, Thomson Scattering, Transparence

Scientific paper

The effect of intergalactic dust and free electrons on the visibility of small-scale anisotropy in the cosmic microwave background is considered. It is shown that failure to detect these fluctuations implies that the deceleration parameter q0 is very much less than the value required to close the universe. It is also shown that, whether the intervening medium obscures fluctuations or not, Thomson scattering does not contribute significantly to the opacity of the intergalactic medium.

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