Year: 2024
Type: article
Abstract: The squeezed cross-bispectrum Bκ,Lyα between the gravitational lensing in the cosmic microwave background and the 1D Lyα forest power spectrum can constrain bias parameters and break degeneracies between σ8 and other cosmological parameters. We detect Bκ,Lyα with 4.8σ significance at an effective redshift zeff=2.4 using Planck PR3 lensing map and over 280,000 quasar spectra from the Dark Energy Spectroscopic Instrument's first-year data. We test our measurement against metal contamination and foregrounds such as Galactic extinction and clusters of galaxies by deprojecting the thermal Sunyaev-Zeldovich effect. We compare our results to a tree-level perturbation theory calculation and find reasonable agreement between the model and measurement.
Authors: Karacayll, NG, Martini, P, Weinberg, DH, Ferraro, S, De Belsunce, R, Aguilar, J, Ahlen, S, Armengaud, E, Brooks, D, Claybaugh, T, De La Macorra, A, Dey, B, Doel, P, Fanning, K, Forero-Romero, JE, Gontcho, SGA, Gonzalez-Morales, AX, Gutierrez, G, Guy, J, Honscheid, K, Kirkby, D, Kisner, T, Kremin, A, Lambert, A, Landriau, M, Le Guillou, L, Levi, ME, Manera, M, Meisner, A, Miquel, R, Mueller, E, Munoz-Gutiérrez, A, Myers, AD, Newman, JA, Nie, J, Niz, G, Palanque-Delabrouille, N, Percival, WJ, Poppett, C, Prada, F, Ravoux, C, Rezaie, M, Ross, AJ, Rossi, G, Sanchez, E, Schlafly, EF, Schlegel, D, Seo, H, Sprayberry, D, Tan, T, Tarlé, G, Weaver, BA, Zou, H
Institutions: The Ohio State University, Lawrence Berkeley National Laboratory, University of California, Berkeley, Boston University, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Université Paris-Saclay, CEA Paris-Saclay - Etablissement de Saclay, Institut de Recherche sur les Lois Fondamentales de l'Univers, University College London, Universidad Nacional Autónoma de México, University of Pittsburgh, SLAC National Accelerator Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, Universidad de Los Andes, Universidad de Guanajuato, Secretaría de Ciencia, Humanidades, Tecnología e Innovación, Fermi National Accelerator Laboratory, University of California, Irvine, Centre National de la Recherche Scientifique, Sorbonne Université, Laboratoire de Physique Nucléaire et de Hautes Énergies, Institut National de Physique Nucléaire et de Physique des Particules, Universitat Autònoma de Barcelona, Institute for High Energy Physics, Barcelona Institute of Science and Technology, NSF NOIRLab, Institució Catalana de Recerca i Estudis Avançats, University of Sussex, University of Wyoming, Chinese Academy of Sciences, National Astronomical Observatories, Space Sciences Laboratory, Instituto de Astrofísica de Andalucía, Kansas State University, Sejong University, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Space Telescope Science Institute, Ohio University, University of Michigan
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, Gordon and Betty Moore Foundation, California Institute of Technology, Chinese Academy of Sciences, Consejo Nacional de Ciencia y Tecnología, Ministerio de Ciencia e Innovación, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Office of Science, Jet Propulsion Laboratory, Science and Technology Facilities Council, Division of Astronomical Sciences, High Energy Physics, Lawrence Berkeley National Laboratory
Awards: G1079818582, G1143651532, G1286236842, G1632040200, G1813527838, G1863003419, G3083819904, G419881185, G42916606, G4501827968, G4906107691, G498139845, Management and Operations of the National Optical Astronomy Observatory, G7354628648, G759921648, RESEARCH IN HIGH ENERGY PHYSICS, G969889393
OpenAlex ID: W7046186201
FWCI:
Cites:
Cited by:
Related to: