Applying the same friends-of-friends search to a giant Lambda CDM simulation shows that Giant Arc-like patterns are common and their apparent overdensities are algorithmic artefacts.
G., Bagoly Z., Hakkila J
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The Emperor's New Arc: gigaparsec patterns abound in a $\Lambda$CDM universe
Applying the same friends-of-friends search to a giant Lambda CDM simulation shows that Giant Arc-like patterns are common and their apparent overdensities are algorithmic artefacts.