Oral title: An ALMA [CII] Mini-survey of Hot Dust Obscured Galaxies

Oral abstract: In this talk I will present results from new ALMA observations of the [CII] line at 158um in a sample of 7 Hot 
Dust Obscured Galaxies (Hot DOGs), at z ~3 to 4.6. In those cases where the [CII] emission is resolved, we find 
complex morphologies, probably reflecting the disturbed dynamical state of these systems, which are likely living at the 
center of proto-clusters. I will provide a closer look to WISE 2246-0526, the most luminous galaxy known, where very 
recent deep ALMA observations of the FIR dust continuum emission reveal multiple galaxy companions and resolved 
filamentary structures.