Spectral Search for Echoes Bob Holdom University of Toronto February 25, 2020 PIRSA:20020093 Scientific Area Quantum Gravity
Echoes and Quadratic Gravity Bob Holdom University of Toronto February 24, 2020 PIRSA:20020087 Scientific Area Quantum Gravity
Not quite black holes at LIGO Bob Holdom University of Toronto September 05, 2019 PIRSA:19090011 Scientific Area Cosmology Particle Physics Strong Gravity
4th generation physics Bob Holdom University of Toronto December 07, 2010 PIRSA:10120027 Scientific Area Particle Physics