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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C15035 - Cosmic Flows (and other novelties on Large Scales)PODCAST Subscribe to podcast

Cosmic Flows (and other novelties on Large Scales)

Organizer(s):

Collection URL: http://pirsa.org/C15035


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PIRSA:15080013  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Welcome and Opening Remarks
Speaker(s): Niayesh Afshordi
Abstract:
Date: 10/08/2015 - 9:15 am

PIRSA:15080007  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Structure formation with hot particles
Speaker(s): Neal Dalal
Abstract: 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.
Date: 10/08/2015 - 9:30 am

PIRSA:15080015  ( MP4 Medium Res , MP3 , PDF ) Which Format?
TBA
Speaker(s): Matthew McQuinn
Abstract: TBA
Date: 10/08/2015 - 10:40 am

PIRSA:15080009  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Probing cosmic flows through the kinematic Sunyaev Zel'dovich effect
Speaker(s): Emmanuel Schaan
Abstract: 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. Cur... read more
Date: 10/08/2015 - 11:20 am

PIRSA:15080018  ( MP4 Medium Res , MP3 , PDF ) Which Format?
TianNu: simulating the neutrino sky
Speaker(s): Haoran Yu
Abstract: TBA
Date: 10/08/2015 - 2:00 pm

PIRSA:15080016  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Precision reconstruction of the cold dark matter-neutrino relative velocity.
Speaker(s): Derek Inman
Abstract: 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... read more
Date: 10/08/2015 - 2:40 pm

PIRSA:15080017  ( MP4 Medium Res , MP3 , PDF ) Which Format?
CMB Anomalies and Non-Gaussianity
Speaker(s): Sarah Shandera
Abstract: 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 hemispheri... read more
Date: 10/08/2015 - 3:50 pm

PIRSA:15080006  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Funny Thing Happened on the Way to Convergence.
Speaker(s): Hume Feldman
Abstract: 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... read more
Date: 10/08/2015 - 4:30 pm

PIRSA:15080020  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Fine Tuning May Not Be Enough
Speaker(s): Richard Woodard
Abstract: 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 p... read more
Date: 11/08/2015 - 9:30 am

PIRSA:15080014  ( MP4 Medium Res , MP3 , PDF ) Which Format?
TBA
Speaker(s):
Abstract: TBA
Date: 11/08/2015 - 10:40 am

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