Cosmology Seminar

Cosmology Seminars are held at on Mondays at 11 am during the academic year, on the 3rd floor Varian conference room. These are more focused and less didactic than the colloquium, and provide a stage for younger researchers to present their work in more detail.  

Please contact Risa WechslerDaniel GruenJosh Meyers, or Kyle Story for more information.

TBD

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Location

Campus, Varian 355

Speaker
Oliver Friedrich (University of Cambridge)

TBD

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Location

Campus, Varian 355

Speaker
Markus Michael Rau (Carnegie Mellon University)

TBD

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Location

Campus, Varian 355

Speaker
Anowar Shajib (UCLA)

Reconstruction of Cosmological Fields in Forward Model Framework - Intensity Mapping and Galaxy Clustering

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Location

Campus, Varian 355

Speaker
Chirag Modi (UC Berkeley)

In this talk, I will discuss the forward model approach to reconstruct cosmological fields in a Bayesian framework with focus on two examples - neutral hydrogen intensity mapping and galaxy clustering. 

TBD

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Location

Campus, Varian 355

Speaker
Sara Simon (University of Michigan)

Cosmic Shear in the Year-3 DES data: 2-point and 3-point correlations

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Location

Campus, Varian 355

Speaker
Lucas Secco (University of Pennsylvania)

The cosmology analyzes of the Year-3 (Y3) data from the Dark Energy Survey (DES) is at full speed ahead. Our preliminary weak lensing sample contains 120 million objects over 4200 square degrees of sky and is the largest shape catalog to date. This statistical power comes at a price: the cosmic shear measurements are more sensitive not only to the signal but also to potential systematics.

A 2020s Vision of CMB Lensing

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Location

Campus, Varian 355

Speaker
Marius Millea (UC Berkeley)

The field of CMB lensing is somewhere akin to where measurements of the primary CMB itself were 15 years ago; we have detected it's there and measured some scales to moderate significance, but the exciting era of deep precision measurements is just on the horizon. Over the coming decade, CMB lensing (the distortion of the CMB photons by gravitational lensing due to the matter along the CMB photon's paths) will precisely probe the distribution of matter in the universe out to high red shifts.

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