Detectability of Tensor Perturbations Through CBR Anisotropy (final published version)

Details Detectability of Tensor Perturbations Through CBR Anisotropy (final published version) Detectability of Tensor Perturbations Through CBR Anisotropy (final published version)

1994-07-13

arxiv.org/abs/astro-ph/9407037v3

Phys.Rev.Lett.73:3347-3350,1994

Astronomy and Astrophysics

Astrophysics

10 pages, uu-encoded postscript file, FERMILAB-PUB-94/175-A

Scientific paper

10.1103/PhysRevLett.73.3347

Detection of the tensor perturbations predicted in inflationary models is important for testing inflation as well as for reconstructing the inflationary potential. We show that because of cosmic variance the tensor contribution to the square of the CBR quadrupole anisotropy must be greater than about 20\% of the scalar contribution to ensure a statistically significant detection of tensor perturbations. This sensitivity could be achieved by full-sky measurements on angular scales of $3^{\circ}$ and $0.5^\circ$.

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