Bright [CII]158$\hat{I}¼$m Streamers as a Beacon for Giant Galaxy Formation in SPT2349$-$56 at $z=4.3$

Nikolaus Sulzenauer, Axel Weiß, Ryley Hill +17

Observations of extreme starbursts, often located in the cores of protoclusters, challenge the classical bottom-up galaxy formation paradigm. Giant elliptical galaxies at $z=0$ mus…