Metal Lines Associated with the Lyman-alpha Forest from eBOSS Data

Autor: Li Yang, Zheng Zheng, Hélion du Mas des Bourboux, Kyle Dawson, Matthew M. Pieri, Graziano Rossi, Donald P. Schneider, Axel de la Macorra, Adrean Muñoz Gutiérrez
Přispěvatelé: Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2022
Předmět:
Zdroj: Astrophys.J.
Astrophys.J., 2022, 935 (2), pp.121. ⟨10.3847/1538-4357/ac7b2e⟩
DOI: 10.48550/arxiv.2206.11385
Popis: We investigate the metal species associated with the Ly$\alpha$ forest in the eBOSS quasar spectra. Metal absorption lines are revealed in the stacked spectra from cross-correlating the selected Ly$\alpha$ absorbers in the forest and the flux fluctuation field. Up to 13 metal species are identified associated with relatively strong Ly$\alpha$ absorbers (those with flux fluctuation $-1.0
Comment: Accepted for publication in ApJ, Jun 21, 2022. In press. 28 pages, 19 figures, 2 tables
Databáze: OpenAIRE