# Super-Sample Signal

@article{Li2014SuperSampleS,
title={Super-Sample Signal},
author={Yin Li and Wayne Hu and Masahiro Takada},
journal={Physical Review D},
year={2014},
volume={90},
pages={103530}
}
• Published 5 August 2014
• Physics
• Physical Review D
When extracting cosmological information from power spectrum measurements, we must consider the impact of super-sample density fluctuations whose wavelengths are larger than the survey scale. These modes contribute to the mean density fluctuation $\delta_b$ in the survey and change the power spectrum in the same way as a change in the cosmological background. They can be simply included in cosmological parameter estimation and forecasts by treating $\delta_b$ as an additional cosmological…

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