BBC Earth recently featured a video that simulates the collision of two black holes, produced by the Simulating eXtreme Spacetimes (SXS) collaboration.
Black holes are formed by the collapse of massive stars; their gravitational pull is so strong that not even light can escape. If they occur in pairs, they emit intense gravitational energy, causing them to spiral inwards and eventually…
Aaron Zimmerman is the 16th recipient of the Tremaine Fellowship which is awarded annually at the Canadian Institute for Theoretical Astrophysics. He was selected for his outstanding work in analytic studies in general relativity. In particular Aaron studies how black holes respond to perturbations and emit gravitational waves; he has also helped to develop novel methods to visualize curved…
By: Liam Connor and Robert Main
(Image Credit: Andre Recnik; Click to enlarge) The first VLBI image of a pulsar’s scattering screen revealed a linear structure in the sky. This is believed to possibly due to refraction at grazing incidence of current sheets in the ISM, where ripples in the sheets cause an enhanced bending of the light from the pulsar. Analogously, a star’s light along t…
CITA is currently accepting applications for the following positions:
Postdoctoral Fellowship
CITA Nationa…
The 2015 Gruber Foundation Fellowship recipient is Cristobal Petrovich from Chile, who will spend the fellowship period at CITA (Canadian Institute for Theoretical Astrophysics) and the Center for Planetary Science at the University of Toronto, where the study of exoplanets is a very active research field. He plans to extend some of the theories of planet migration by taking into account t…
Headlines around the world accompanied the announcement in March 2014 by the BICEP2 team that a specific swirly pattern of cosmic microwave background polarization called the B-mode was discovered on large angular scales. After evaluating and rejecting various systematic effects and Milky Way foreground emissions as the cause, the team, including Professor Barth Netterfield and graduate student…
Despite earlier reports of a possible detection, a joint analysis of data from ESA’s Planck satellite and the ground-based BICEP2 and Keck Array experiments has found no conclusive evidence of primordial gravitational waves. CITA scientists Dick Bond and Peter Martin are co-authors on this new study.
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Download the BICEP-2/Keck/Planck cross-correlation…
Today the Director of CITA, Norm Murray, will go live on the airwaves with Public Radio International to discuss the Spinning Theories on Planet Rotation. This will be broadcasted from Glen Gould studio downtown Toronto.
You can listen here at Scienc…