CITA National Fellow Dan Wilkins of St. Mary’s University was recently the lead author of a paper that more deeply characterizes the behaviour of supermassive black holes. The results from the observations by NASA’s Explorer missions Swift and the Nuclear Spectroscopic Telescope Array (NuSTAR) could “help us understand how supermassive black holes power some of the brightest objects in t…
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SXS Simulation Video Featured on BBC Earth
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…
A new part of the time-domain radio sky
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…
Cristobal Petrovich is the Recipient of the 2015 Gruber Foundation Fellowship
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…
Debut on the BBC and Science Channel! the bicep-planck story
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…
Planck: Gravitational Waves Remain Elusive
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.
Read more…
Download the BICEP-2/Keck/Planck cross-correlation…
Professor Norm Murray broadcasting live on PRI
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…
Workshop “Testing Inflation with Large Scale Structure: Connecting Hopes with Reality”
Assistant Professor Dan Green, along with alumni CITAzen Olivier Dore, will be hosting a workshop on October 23 and 24, 2014.
The workshop will have no research talks, but will instead consist of a number of organized discussions. These discussions will cover both interesting theoretical targets in the post-Planck era but also the practical and technical challenges of reaching these targets.
New York Times article: “Criticism of Study Detecting Ripples From Big Bang Continues to Expand”
Prof Dick Bond is quoted in the New York Times article “Criticism of Study Detecting Ripples From Big Bang Continues to Expand”.
Find the article PDF…
CITA Jamboree
CITA held it’s annual Jamboree on Monday September 15th, 2014
Please find below the abstract for everyone who was here to introduce their research and a few slides.
Abstract
Sample slides
Slide 1 Slide 2 Slide 3 Slide 4 Slid…
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