Annual Archives

2015

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.

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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…

How long is a day on an exoplanet when the atmosphere forces an entire planet to spin faster

Even before exoplanets were discovered, astronomers thought that most planets with orbital periods less than a year would be spinning “synchronously”, meaning that, like the Moon around the Earth, they would always show the same side to their star. In our Solar System, Venus escaped this state, but it was believed that this peculiarity was due to the unusually massive atmosphere of that…

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