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Harald P. Pfeiffer Astrophysicist

Harald Pfeiffer’s research aims for a deeper understanding of black holes and Einstein’s theory of General Relativity through numerical simulations. Beyond the primary focus on numerical simulations, he is also interested in applications to gravitational wave observations, the development of novel numerical techniques, and visualization.


Ontario Early Researcher Award, 2014.

Relevant Publications

Abbott, Benjamin P. et al. “Observation of gravitational waves from binary black hole manager.” Physical Review Letters, 116; 6, 2016.

Mroué, Abdul H., et al. “Catalog of 174 binary black hole simulations for gravitational wave astronomy.” Physical Review Letters, 111; 24, 2013

Boyle, Michael, et al. “High-accuracy comparison of numerical relativity simulations with post-Newtonian expansions.” Physical Review D., 76; 12, 2007



Associate Fellow Gravity & the Extreme Universe


University of TorontoCanadian Institute for Theoretical Astrophysics


PhD Cornell University



Ideas Related to Harald P. Pfeiffer

Gravity & the Extreme Universe | CIFAR Azrieli Global Scholars

CIFAR fellows part of first gravitational wave detection of colliding neutron stars

The observations have given astronomers an unprecedented opportunity For the first time, scientists have directly detected gravitational waves from the...

Symposium Debrief | Cosmology & Gravity

Symposium Brief: Untangling the Cosmos

On May 17, 2017, CIFAR, in partnership with the Ontario Science Centre, held a day-long symposium called “Untangling the Cosmos:...

News | Cosmology & Gravity

Third detection of gravitational waves

The first detection of gravitational waves has been compared to opening a new window on the universe. With the third...

Video | Cosmology & Gravity

Detecting Gravitational Waves from Colliding Black Holes

Fellow Harald Pfeiffer discusses gravitational waves and black holes at CIFAR’s Untangling the Cosmos Symposium.

News | Cosmology & Gravity

Physicists detect gravitational waves from colliding black holes

Physicists have detected gravitational waves left over from the collision of two black holes more than a billion years ago,...