Large‐scale asymmetry in galaxy spin directions: Analysis of galaxies with spectra in <scp>DES</scp>, <scp>SDSS</scp>, and <scp>DESI</scp> Legacy Survey

Abstract Multiple previous studies using several different probes have shown considerable evidence for the existence of cosmological‐scale anisotropy and a Hubble‐scale axis. One that show such is distribution directions toward which galaxies spin. The advantage analysis galaxy spin compared to cosmic microwave background ratio relative measurement, therefore less sensitive contamination as Milky Way obstruction. Another many spiral spectra, allow analyze location axis Earth. This paper shows an over 90K with spectra. That also analyses Earth‐based Sloan Digital Sky Survey, Panoramic Survey Telescope Rapid Response System, Dark Energy Spectroscopic Instrument Legacy well space‐based data collected by Hubble Space Telescope. results very good agreement between patterns observed telescopes. dipole or quadrupole axes formed spectra do not necessarily go directly through