Below is a list of all the papers about GW170817 which came out in the "first wave" on October 16, 2017.
The list was compiled by Maria Drout, Stefano Valenti, and Iair Arcavi. Please let us know if you notice any inaccuracies or omissions.

A compilation of all the GCN circulars related to GW170817 can be found here.