eprintid: 10197273
rev_number: 6
eprint_status: archive
userid: 699
dir: disk0/10/19/72/73
datestamp: 2024-09-20 13:23:24
lastmod: 2024-09-20 13:23:24
status_changed: 2024-09-20 13:23:24
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Karacayll, NG
creators_name: Martini, P
creators_name: Weinberg, DH
creators_name: Ferraro, S
creators_name: De Belsunce, R
creators_name: Aguilar, J
creators_name: Ahlen, S
creators_name: Armengaud, E
creators_name: Brooks, D
creators_name: Claybaugh, T
creators_name: De La Macorra, A
creators_name: Dey, B
creators_name: Doel, P
creators_name: Fanning, K
creators_name: Forero-Romero, JE
creators_name: Gontcho, SGA
creators_name: Gonzalez-Morales, AX
creators_name: Gutierrez, G
creators_name: Guy, J
creators_name: Honscheid, K
creators_name: Kirkby, D
creators_name: Kisner, T
creators_name: Kremin, A
creators_name: Lambert, A
creators_name: Landriau, M
creators_name: Le Guillou, L
creators_name: Levi, ME
creators_name: Manera, M
creators_name: Meisner, A
creators_name: Miquel, R
creators_name: Mueller, E
creators_name: Munoz-Gutiérrez, A
creators_name: Myers, AD
creators_name: Newman, JA
creators_name: Nie, J
creators_name: Niz, G
creators_name: Palanque-Delabrouille, N
creators_name: Percival, WJ
creators_name: Poppett, C
creators_name: Prada, F
creators_name: Ravoux, C
creators_name: Rezaie, M
creators_name: Ross, AJ
creators_name: Rossi, G
creators_name: Sanchez, E
creators_name: Schlafly, EF
creators_name: Schlegel, D
creators_name: Seo, H
creators_name: Sprayberry, D
creators_name: Tan, T
creators_name: Tarlé, G
creators_name: Weaver, BA
creators_name: Zou, H
title: CMB lensing and Lyα forest cross bispectrum from DESI's first-year quasar sample
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F60
note: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
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.
date: 2024-09-15
date_type: published
publisher: American Physical Society (APS)
official_url: http://dx.doi.org/10.1103/physrevd.110.063505
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2313030
doi: 10.1103/PhysRevD.110.063505
lyricists_name: Doel, Andrew
lyricists_name: Brooks, David
lyricists_id: APDOE12
lyricists_id: DBROO45
actors_name: Flynn, Bernadette
actors_id: BFFLY94
actors_role: owner
full_text_status: public
publication: Physical Review D
volume: 110
number: 6
article_number: 063505
citation:        Karacayll, NG;    Martini, P;    Weinberg, DH;    Ferraro, S;    De Belsunce, R;    Aguilar, J;    Ahlen, S;                                                                                                                                                                                         ... Zou, H; + view all <#>        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;   - view fewer <#>    (2024)    CMB lensing and Lyα forest cross bispectrum from DESI's first-year quasar sample.                   Physical Review D , 110  (6)    , Article 063505.  10.1103/PhysRevD.110.063505 <https://doi.org/10.1103/PhysRevD.110.063505>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10197273/1/PhysRevD.110.063505.pdf