Ultra-light axions (cosmological)
CMB = Cosmic microwave background (solid = Planck 2018; projection = CMB-S4)
+BOSS = CMB + galaxy clustering (Baryon Oscillation Spectroscopic Survey)
+WL = CMB + galaxy weak lensing shear (Dark Energy Survey)
Lya = Lyman-alpha forest (solid = Baryon Oscillation Spectroscopic Survey + high-resolution spectra; projection = Dark Energy Spectroscopic Instrument + high-resolution spectra)
MW = Milky Way sub-halo mass function (solid = Dark Energy Survey, projection = Rubin Observatory)
CMB-HD = Ostriker-Vishniac effect (projection = CMB-HD)
PTA = Pulsar timing arrays (projection)
IM = Intensity mapping (projection = Square Kilometre Array)
GUT-scale fa = Axion decay constant at the Grand Unified Theory energy scale
BibTex for references and public code to follow.