TL;DR
This paper introduces galactic constellations in DESI DR1 data, creating a public platform for exploration, and uses constellation sizes to test cosmological homogeneity, confirming the standard model.
Contribution
It presents a novel visualization of cosmic structures as constellations and develops a public tool for data exploration, providing an unconventional test of cosmological principles.
Findings
Constellations are consistent with the cosmological principle.
93 constellations discovered by early users.
Constellation sizes support Lambda-CDM model.
Abstract
We present galactic constellations: charming shapes in large cosmological surveys. By exploring a dense subset of DESI's first data release, we discover distinctive constellations including "Pisces Grandis", "The DESI Stick Woman", and "W". We additionally develop a public website for anyone to explore DESI data, find their own constellations, and share their creations: see cmlamman.github.io/galactic-constellations. Early users of the site discovered 93 constellations. We analyze the size of these constellations as an unconventional probe of homogeneity, finding consistency with the cosmological principle and Lambda-CDM.
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