Polarization map of the CMB + galactic foregrounds at 140 GHz
Credit: Susanna Azzoni (Oxford)

Cosmology Seminar: Rethinking Interstellar Dust and Implications for B-modes

02 May 2023
Seminars and colloquia
Time
Venue
Beecroft Seminar Room
Denys Wilkinson Building, Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH
Speaker(s)

Brandon Hensley (Princeton University)

Seminar series
Cosmology
Knowledge of physics?
Yes, knowledge of physics required
For more information contact

josu.aurrekoetxea@physics.ox.ac.uk , sebastian.vonhausegger@physics.ox.ac.uk

Abstract:

Planck observations of polarized dust emission have forced a rethinking of the dust models that have been built up over the last five decades. I will first introduce the "astrodust" dust model and its implications for modeling dust emission in CMB polarization experiments. I will then connect to models of interstellar structure to provide a physical description of dust EE/BB, TE, TB, and EB with implications for searches for cosmic birefringence as well as primordial B-modes.