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TeVPA 2022

8–12 Aug 2022
America/Toronto timezone

Session

Cosmology

8 Aug 2022, 14:00

Conveners

Cosmology: I - Stirling Auditorium

  • Keir Rogers

Presentation materials

There are no materials yet.

  1. 28. An Effective Field Theory of 21 cm Radiation with Redshift Space Distortions
    Ms Wenzer Qin (MIT)
    08/08/2022, 14:00
    Cosmology
    Parallel Talk

    With the prospect of detecting the cosmological 21 cm signal from the epoch of reionization just over the horizon, methods for extracting maximal cosmological information from this signal are increasingly timely. I will discuss recent work to further develop the effective field theory (EFT) for the 21 cm brightness temperature field during the epoch of reionization, incorporating renormalized...

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  2. 53. Hubble distancing: Focusing on distance measurements in cosmology
    Kylar Greene (University of New Mexico)
    08/08/2022, 14:20
    Cosmology
    Parallel Talk

    The Hubble-Lemaitre tension is currently one of the most important questions in cosmology. Most of the focus so far has been on reconciling the Hubble constant value inferred from detailed cosmic microwave background measurement with that from the local distance ladder. This emphasis on one number -- namely H0 -- misses the fact that the tension fundamentally arises from disagreements of...

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  3. 157. Intergalactic medium as a probe of fundamental physics
    Anastasia Sokolenko
    08/08/2022, 14:40
    Cosmology

    Most of the volume of the Universe consists of the Intergalactic Medium (IGM), space between collapsed structures like galaxies and galaxy clusters. Extragalactic photons and charged particles that propagate through the Universe spend most of their time in the IGM and can be influenced by its properties. In this talk, I will present a few examples of how we can study fundamental physics from...

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  4. 198. A Poisson Log-Normal Framework for Cosmological Parameter Inference Using Dark Sirens
    J. Leo Kim (Queen's University)
    08/08/2022, 15:00
    Gravitational wave and multimessenger
    Parallel Talk

    We present a novel statistical framework to infer cosmological parameters from cosmological surveys, based on a Bayesian forward modelling of correlated Poisson processes. In particular, given catalogs of galaxies and standard sirens, we compute the posterior distributions for cosmological parameters by assuming that the detection of standard sirens follow a spatial Poisson process that...

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