Boost operator approach to the relativistic polarized SZ effect

Fuente: arXiv
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Main Authors: Rosenberg, Erik, Chluba, Jens
Format: Preprint
Published: 2025
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author Rosenberg, Erik
Chluba, Jens
author_facet Rosenberg, Erik
Chluba, Jens
contents We extend the recent boost operator formalism for relativistic Compton scattering calculations to also account for polarization. This allows us to provide general, exact expressions for the polarized Sunyaev-Zeldovich (SZ) effect sourced both kinematically and from intrinsic anisotropies of the Cosmic Microwave Background (CMB). The results are given in terms of rational operator functions that can be used to generate distortion spectra that describe the general SZ signal, reproducing the classical polarized SZ results in the appropriate limits. Our derivation allows for clear separation of physical effects in the generation of polarized SZ, and beyond the SZ application provides a general description of the Compton collision term in the Doppler-dominated regime. Through direct computation of important example cases we further illustrate the power of this new method.
format Preprint
id arxiv_https___arxiv_org_abs_2511_11377
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Boost operator approach to the relativistic polarized SZ effect
Rosenberg, Erik
Chluba, Jens
Cosmology and Nongalactic Astrophysics
We extend the recent boost operator formalism for relativistic Compton scattering calculations to also account for polarization. This allows us to provide general, exact expressions for the polarized Sunyaev-Zeldovich (SZ) effect sourced both kinematically and from intrinsic anisotropies of the Cosmic Microwave Background (CMB). The results are given in terms of rational operator functions that can be used to generate distortion spectra that describe the general SZ signal, reproducing the classical polarized SZ results in the appropriate limits. Our derivation allows for clear separation of physical effects in the generation of polarized SZ, and beyond the SZ application provides a general description of the Compton collision term in the Doppler-dominated regime. Through direct computation of important example cases we further illustrate the power of this new method.
title Boost operator approach to the relativistic polarized SZ effect
topic Cosmology and Nongalactic Astrophysics
url https://arxiv.org/abs/2511.11377