A sample of quiescent early-type galaxies (ETGs) — home to most of the stars in the local Universe — at z ~ 1.8 contain two orders of magnitude more dust at a fixed stellar mass than local ETGs. This implies a higher gas content, at odds with the idea that star formation at this redshift is quenched by gas removal.
- R. Gobat
- E. Daddi
- F. Valentino
