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.

Suppressing cooling flows in massive galaxies with cosmic ray injection and turbulent stirring

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Location

Campus, Varian 355

Speaker
Kung-Yi Su (Caltech)

The quenching "maintenance" and related "cooling flow" problems are important in galaxies from Milky Way mass through clusters. We investigate this in halos with masses ~1e12-1e14 solar mass, using non-cosmological high-resolution hydrodynamic simulations with the FIRE-2 (Feedback In Realistic Environments) stellar feedback model.

TBD

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Location

Campus, Varian 355

Speaker
Carl Rodriquez (Massachusetts Institute of Technology)

The abundance and dark matter structure of galaxies in alternative dark matter models

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Location

Campus, Varian 355

Speaker
Omid Sameie (UC Riverside)

Strong dark matter interactions are proposed to alleviate the tension between observations and theoretical predictions in CDM. Among different interaction channels, self-interacting dark matter (SIDM) models have received considerable attention.

Secondary Anisotropies: Cosmology from Joint Analyses of CMB and Galaxy Surveys

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Location

Campus, Varian 355

Speaker
Eric Baxter (University of Pennsylvania)

Large scale structure leaves an imprint in the cosmic microwave background (CMB) in the form of secondary anisotropies.  As a result of these small distortions, CMB and galaxy surveys provide highly complementary cosmological probes.  I will illustrate how this complementarity can be exploited using cross-survey correlations between galaxy surveys and (i) CMB lensing and (ii) the Sunyaev-Zel’dovich effect.  Moreover, the complementarity of CM

TBD

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Location

Campus, Varian 355

Speaker
Jordan Mirocha (Mcgill University)

Emission-line galaxies in the era of cosmological surveys

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Location

Campus, Varian 355

Speaker
Alvaro Orsi (Centro de Estudios de Fisica del Cosmos de Aragon - CEFCA)

Cosmological surveys in the next decade will contain multiwavelength information of billions of galaxies. The challenges ahead are to distinguishing between different cosmological scenarios and/or gravity models and track accurately the build-up and formation history of galaxies.

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