Stacked Reverberation Mapping of High Redshift Quasars in DESI. I. Feasibility Analysis

arXiv:2607.21869 · astro-ph.GA · Submitted 2026-07-23 · Read on arXiv

Rahma Alfarsy, R. E. A. Canning, Eva-Maria Mueller, Jessica Aguilar, Steven Ahlen, David Alexander, Davide Bianchi, David Brooks, Peter Clark, Todd Claybaugh, Andrei Cuceu, Tamara Davis, Axel de la Macorra, Saisrinivas Dhavala, Victoria A. Fawcett, Benjamin Floyd, Andreu Font-Ribera, Jaime Forero-Romero, Enrique Gaztañaga, Wei-Jian Guo, Gaston Gutierrez, Klaus Honscheid, Richard Joyce, Stephanie Juneau, David Kirkby, Theodore Kisner, Anthony Kremin, Claire Lamman, Martin Landriau, Laurent Le Guillou, Paul Martini, Hugh McDougall, Aaron Meisner, Ramon Miquel, John Moustakas, Seshadri Nadathur, Nathalie Palanque-Delabrouille, Zhiwei Pan, Swayamtrupta Panda, Ignasi Pérez-Ràfols, Francisco Prada, Ragadeepika Pucha, Graziano Rossi, Eusebio Sanchez, David Schlegel, Michael Schubnell, Tom Shanks, Małgorzata Siudek, David Sprayberry, Gregory Tarlé, Benjamin Alan Weaver, Hu Zou

astro-ph.GA

Submitted: 2026-07-23

Comments: 28 pages, 29 figures, Accepted by MNRAS

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Reverberation Mapping — 29× in this paper
• AGN — 11× in this paper · explained in 1 episode
• Accuracy — 7× in this paper · explained in 1 episode
• Robustness — 7× in this paper · explained in 5 episodes
• Consistency — 3× in this paper · explained in 3 episodes
• Bayesian Framework — 2× in this paper · explained in 3 episodes
• Bayesian Inference — 2× in this paper · explained in 5 episodes
• Dark Energy Spectroscopic Instrument — 2× in this paper
• Department of Energy — 2× in this paper
• Ensemble Approach — 2× in this paper · explained in 3 episodes
• National Science Foundation — 2× in this paper
• Survey Validation — 2× in this paper
• Zwicky Transient Facility — 2× in this paper
• Active Galactic Nuclei (AGN) — 1× in this paper · explained in 1 episode
• Bayesian Markov Chain Monte Carlo — 1× in this paper
• Benchmark — 1× in this paper · explained in 2 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Core — 1× in this paper · explained in 2 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• Microlensing — 1× in this paper · explained in 2 episodes
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes
• Systematic Bias — 1× in this paper · explained in 3 episodes
• Trace — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Improved AGN light curve analysis with the z-transformed discrete correlation function
• WST -- Widefield Spectroscopic Telescope: Motivation, science drivers and top-level requirements for a new dedicated facility
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• The DESI Experiment Part II: Instrument Design
• DESI 2024 III: Baryon Acoustic Oscillations from Galaxies and Quasars
• DESI 2024 V: Full-Shape Galaxy Clustering from Galaxies and Quasars
• Data Release 1 of the Dark Energy Spectroscopic Instrument
• TiDES: The 4MOST Time Domain Extragalactic Survey
• Echo Tomography of Black Hole Accretion Flows
• Application of the FRADO model of BLR formation to the Seyfert galaxy NGC 5548 and the first step toward determining the Hubble constant
• The DESI Experiment, a whitepaper for Snowmass 2013
• LITMUS: Bayesian Lag Recovery in Reverberation Mapping with Fast Differentiable Models
• Reverberation Mapping and the Physics of Active Galactic Nuclei
• A Spectroscopic Road Map for Cosmic Frontier: DESI, DESI-II, Stage-5

Related papers

• Apparent Stability in Self-Gravitating Turbulence and the Evolution of Molecular Clouds
• Two sets of potential-density basis pairs for the study of radial perturbations in collisionless spherical stellar systems
• Constraining reionization-era Ly alpha escape with JELS-MUSE: a highly complete H alpha-selected sample at z about6.1
• Deriving volume density profiles of filaments from observed surface densities
• Little Red Dots and Supermassive Black Hole Seed Formation in Ultralight Dark Matter Halos
• MEGATRON: how the first stars can create an iron metallicity plateau in the smallest dwarf galaxies