20181115-Diaz-Santos-et-al-ALMA-labels

ALMA image shows how W2246-0526 is being fed by three companion galaxies (C1, C2, and C3) through trans-galactic streamers: a large tidal tail, labeled in green, connects C2 with the main galaxy; the other two galaxies (C1 and C3) are connected to W2246-0526 by dust bridges. Credit: T. Diaz-Santos et al.; N. Lira; ALMA (ESO/NAOJ/NRAO).