Quantifying Excess Power from Radio Frequency Interference in Epoch of Reionization Measurements. (arXiv:2004.07819v1 [astro-ph.IM])

Quantifying Excess Power from Radio Frequency Interference in Epoch of Reionization Measurements. (arXiv:2004.07819v1 [astro-ph.IM])
<a href="http://arxiv.org/find/astro-ph/1/au:+Wilensky_M/0/1/0/all/0/1">Michael J. Wilensky</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Barry_N/0/1/0/all/0/1">Nichole Barry</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Morales_M/0/1/0/all/0/1">Miguel F. Morales</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hazelton_B/0/1/0/all/0/1">Bryna J. Hazelton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Byrne_R/0/1/0/all/0/1">Ruby Byrne</a>

We quantify the effect of radio frequency interference (RFI) on Epoch of
Reionization (EoR) power spectra. Specifically, we investigate how the
frequency structure of source emission generates contamination in higher-order
wave modes that is much more problematic than smooth-spectrum foreground
sources. We find that even a single relatively dim RFI source can overwhelm
typical estimates of the EoR power spectrum signal on cosmological modes of
interest. If total apparent RFI flux density in an integration is kept below 1
mJy, an EoR detection should be feasible given no other systematic. These
results emphasize the need for highly effective RFI mitigation strategies for
telescopes used to search for the EoR.

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