In 1986 he returned to Dublin where he became Senior Professor in the School of Cosmic Physics and head of the then Cosmic Ray Section (now Astronomy and Astrophysics Section) at DIAS.[7]
Drury retired in 2018 but continues to work on issues of policy for science, in particular open access and open science, as a board member of the federation of All European Academies (ALLEA). He was the lead author on the ALLEA response to Plan S.[12] In 2021 he was made an honorary fellow of Trinity College Dublin.[13]
Selected publications
On normal modes of gas sheets and discs (1980) MNRAS 193 337
An introduction to the theory of diffusive shock acceleration of energetic particles in tenuous plasmas (1983) Rep. Prog. Phys. 46 973.
Simple adaptive grids for 1-D initial value problems (1987) J. Comp. Phys. 69 175 (with E. Dorf)
The gamma-ray visibility of supernova remnants. A test of cosmic ray origin (1994) A&A 287 959 (with F. Aharonian and H. J. Voelk)
Escaping the accelerator: how, when and in what numbers do cosmic rays get out of supernova remnants? (2011) MNRAS 415 1807