Modeling parity-violating spectra in Galactic dust polarization with filaments and its applications to cosmic birefringence searches
Year: 2025
Type: article
Abstract: The detection of rotation of linearly polarized cosmic microwave background photons, which is called cosmic birefringence, may suggest new parity-violating physics. However, scattering by dust can also mimic this same effect. In this paper, the authors extends a pre-existing dust filament model to compute this effect to make a forecast for future CMB experiments and assess the effect of this dust on present isotropic measurements of cosmic birefringence.
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, National Aeronautics and Space Administration, Innovative Research Group Project of the National Natural Science Foundation of China, National Energy Research Scientific Computing Center, Nuclear Safety and Security Commission, Centro de Astrofísica y Tecnologías Afines, Agencia Nacional de Investigación y Desarrollo, Office of Science, Fondo Nacional de Desarrollo Científico y Tecnológico
Awards: G1820675529, CMB Polarization Foreground Effects on B-modes and Lensing, G2428672771, DEVELOPING REALISTIC POLARIZED GALACTIC FOREGROUND MODELS AND THEIR IMPACT ON CMB POLARIZATION SCIENCE, G3878525615, G4343307242, G4347000405, G5179621235, G5834573078, CENTRO DE COMPUTO NACIONAL PARA ASTROFISICA, G6749640356, Turbulent structures in the magnetic interstellar medium, G701298221, G8470655874, CENTRO DE ASTROFISICA Y TECNOLOGIAS AFINES (CATA)
OpenAlex ID: W4409477234