Constraints on Pre-Recombination Early Dark Energy from SPT-3G Public Data

• Main Authors: La Posta, Adrien, Louis, Thibaut, Garrido, Xavier, Hill, J. Colin
• Other Authors: Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
• Format: Report
• Language: English
• Published: HAL CCSD 2022
• Subjects: [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]; Hubble; South Pole; South pole
• Online Access: https://hal.archives-ouvertes.fr/hal-03514225

Early dark energy (EDE) is a proposed solution to the Hubble tension in which a new cosmological field accelerates cosmic expansion prior to recombination and reduces the physical size of the sound horizon. In previous work, a slight preference for a non-zero EDE contribution was found in the latest...