The ionised interstellar medium of DSFGs revealed by JWST/NIRSpec and ALMA: Super-solar metallicity, low ionisation parameters and, typical electron densities
Researchers used JWST/NIRSpec and ALMA to study 48 high-redshift dusty star-forming galaxies (DSFGs). They found these galaxies have super-solar metallicity, low ionization parameters, and typical electron densities. This suggests they are massive, chemically evolved systems operating outside standard galaxy models.