Constraining primordial non-Gaussianity from DESI quasar targets and Planck CMB lensing

We detect the cross-correlation between 2.7 million DESI quasar targets across 14,700 deg 2 (180 quasars deg -2 ) and Planck 2018 CMB lensing at ∼30 σ . We use the cross-correlation on very large scales to constrain local primordial non-Gaussianity via the scale dependence of quasar bias. The DESI q...

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Veröffentlicht in:	Journal of cosmology and astroparticle physics 2024-03, Vol.2024 (3), p.21
Hauptverfasser:	Krolewski, Alex, Percival, Will J., Ferraro, Simone, Chaussidon, Edmond, Rezaie, Mehdi, Aguilar, Jessica Nicole, Ahlen, Steven, Brooks, David, Dawson, Kyle, de la Macorra, Axel, Doel, Peter, Fanning, Kevin, Font-Ribera, Andreu, a Gontcho, Satya Gontcho, Guy, Julien, Honscheid, Klaus, Kehoe, Robert, Kisner, Theodore, Kremin, Anthony, Landriau, Martin, Levi, Michael E., Martini, Paul, Meisner, Aaron M., Miquel, Ramon, Nie, Jundan, Poppett, Claire, Ross, Ashley J., Rossi, Graziano, Schubnell, Michael, Seo, Hee-Jong, Tarlé, Gregory, Vargas-Magaña, Mariana, Weaver, Benjamin Alan, Yèche, Christophe, Zhou, Rongpu, Zhou, Zhimin
Format:	Artikel
Sprache:	eng
Schlagworte:	ASTRONOMY AND ASTROPHYSICS Astrophysics Bias Contamination cosmological parameters from LSS Cross correlation gravitational lensing Image quality inflation Physics Quasars Red shift Systematics
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