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Monthly Notices of the Royal Astronomical Society· 2026Q1

Intrinsic alignment demographics for next-generation lensing: Revealing galaxy property trends with DESI Y1 direct measurements

Jerome H. Siegel, J. McCullough, A. Amon, C. Lamman et al.

Short summary

Direct measurements of intrinsic galaxy alignments (IA) for over 2 million DESI galaxies reveal that bluer galaxies show zero alignment, while redder, quenched galaxies are strongly aligned, with alignment amplitude increasing with luminosity and stellar mass.

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Field: Instrumentation

InstrumentationPhysics and Astronomy