Star formation associated with neutral hydrogen in the outskirts of early-type galaxies

Mustafa K. Yıldız, Paolo Serra, Reynier F. Peletier +2

About 20 percent of all nearby early-type galaxies ($M_{\star }\gtrsim 6\times 10^9$ M${}_{\odot }$) outside the Virgo cluster are surrounded by a disc or ring of low-column-densit…