Diversity and Evolution of Dust Attenuation Curves from Redshift z ~ 1 to 9
Using a spectroscopic sample of ~3,800 galaxies at redshifts z~1–9 from JWST and HST data, this study reveals that UV-optical dust attenuation curves become significantly flatter with increasing redshift and attenuation, suggesting that early-universe dust is dominated by large grains from supernovae with limited interstellar medium processing.