Format results
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Welcome and Opening Remarks
Niayesh Afshordi - University of Waterloo
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Structure formation with hot particles
Neal Dalal - Perimeter Institute for Theoretical Physics
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Probing cosmic flows through the kinematic Sunyaev Zel'dovich effect
Emmanuel Schann - Princeton University
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TianNu: simulating the neutrino sky
Haoran Yu - University of Toronto
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Precision reconstruction of the cold dark matter-neutrino relative velocity.
Derek Inman - University of Toronto
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CMB Anomalies and Non-Gaussianity
Sarah Shandera - Pennsylvania State University
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Funny Thing Happened on the Way to Convergence.
Hume Feldman - University of Kansas
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Fine Tuning May Not Be Enough
Richard Woodard - University of Florida
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Clustering Redshifts: A New Era of Distance Measurement
Mubdi Rahman - University of Toronto
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TBA
Matias Zaldarriaga - Institute for Advanced Study (IAS) - School of Natural Sciences (SNS)
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Structure formation with hot particles
Neal Dalal - Perimeter Institute for Theoretical Physics
I will describe a novel method for simulating nonlinear structure formation in cosmologies that have hot or warm collisionless species. After introducing the method, I will show results of our simulations for universes with massive neutrinos, and warm dark matter simulations. -
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Probing cosmic flows through the kinematic Sunyaev Zel'dovich effect
Emmanuel Schann - Princeton University
Beyond its primary fluctuations, the cosmic microwave background (CMB) contains a wealth of information on the large-scale structure of the universe, which it illuminates as a backlight. The baryon momentum field is thus imprinted on the CMB through the kinematic Sunyaev-Zel'dovich (kSZ) effect… -
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Precision reconstruction of the cold dark matter-neutrino relative velocity.
Derek Inman - University of Toronto
Neutrinos occur in great number throughout the Universe, yet remain poorly understood due to their weak interactions with other matter. In particular, individual neutrino masses remain an elusive property for particle physicists and cosmologists abound. Recently, it has been proposed that individual… -
CMB Anomalies and Non-Gaussianity
Sarah Shandera - Pennsylvania State University
When the primordial fluctuations are non-Gaussian and inflation lasts longer than the minimum number of e-folds, the likelihood that we observe mild deviations from isotropy increases. I will present a single framework that encompasses many of the most promising scenarios for generating a… -
Funny Thing Happened on the Way to Convergence.
Hume Feldman - University of Kansas
Modeling the cosmic velocity field, and especially estimating its lowest order moment, the bulk flow, has been a popular pursuit among aficionados in the cosmological community for three decades now. Other than estimating the magnitude and direction of the flow, one of the main difficulties has been… -
Fine Tuning May Not Be Enough
Richard Woodard - University of Florida
This talk is based on arXiv:1506.07306, with Shun-Pei Miao. We argue that the fine tuning problems of scalar-driven inflation may be worse than is commonly believed. The reason is that reheating requires the inflaton to be coupled to other matter fields whose vacuum fluctuations alter the inflaton… -
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Clustering Redshifts: A New Era of Distance Measurement
Mubdi Rahman - University of Toronto
The measurement of distance has long been a fundamental challenge in astrophysics. We have developed a method of inferring distances to astrophysical sources using spatial cross-correlations with galaxies of known redshift. These “clustering redshifts” are robust to problems plaguing other distance… -