Detecting relic gravitational waves in the CMB: A statistical bias

Details Detecting relic gravitational waves in the CMB: A statistical bias Detecting relic gravitational waves in the CMB: A statistical bias

2011-07-22

arxiv.org/abs/1107.4504v1

Eur. Phys. J. C (2011) 71: 1706

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 1 figure

Scientific paper

10.1140/epjc/s10052-011-1706-2

Analyzing the imprint of relic gravitational waves (RGWs) on the cosmic
microwave background (CMB) power spectra provides a way to determine the signal
of RGWs. In this Letter, we discuss a statistical bias, which could exist in
the data analysis and has the tendency to overlook the RGWs. We also explain
why this bias exists, and how to avoid it.

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