Galaxy-halo connection in current CMB cross-correlation science

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• Boris Bolliet (Cavendish)
• Friday 31 January 2025, 11:30-12:30
• Ryle Seminar Room, KICC + online.

If you have a question about this talk, please contact Sandro Tacchella.

In this talk we will review models and constraints on halo occupation distribution (HOD) statistics in Cosmic Microwave Background (CMB) cross-correlation studies. We will focus on CMB lensing and kinetic Sunyavev Zeldovich cross-correlations. As we will see, HOD degeneracies are a limiting aspect of our measurements of the gas distributions around massive halos. We will discuss current constraints on the gas derived from recent ACT data and prospects for SO, as well as the significance of these constraints in the context of hydrodynamical simulations.

This talk is part of the Galaxies Discussion Group series.

This talk is included in these lists:

• Cambridge Astronomy Talks
• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Galaxies Discussion Group
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology Talk Lists
• Ryle Seminar Room, KICC + online

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