OzDES Reverberation Mapping Program: Hβ lags from the 6-yr survey. Issue 2 (16th January 2023)

• Record Type: Journal Article
• Authors: Malik, U; Sharp, R; Penton, A; Yu, Z; Martini, P; Lidman, C; Tucker, B E; Davis, T M; Lewis, G F; Aguena, M; Allam, S; Alves, O; Andrade-Oliveira, F; Asorey, J; Bacon, D; Bertin, E; Bocquet, S; Brooks, D; Burke, D L; Carnero Rosell, A; Carollo, D; Carrasco Kind, M; Carretero, J; Costanzi, M; da Costa, L N; Pereira, M E S; De Vicente, J; Desai, S; Diehl, H T; Doel, P; Everett, S; Ferrero, I; Frieman, J; García-Bellido, J; Gerdes, D W; Gruen, D; Gruendl, R A; Gschwend, J; Hinton, S R; Hollowood, D L; Honscheid, K; James, D J; Kuehn, K; Marshall, J L; Mena-Fernández, J; Menanteau, F; Miquel, R; Ogando, R L C; Palmese, A; Paz-Chinchón, F; Pieres, A; Plazas Malagón, A A; Raveri, M; Rodriguez-Monroy, M; Romer, A K; Sanchez, E; Scarpine, V; Sevilla-Noarbe, I; Smith, M; Soares-Santos, M; Suchyta, E; Swanson, M E C; Tarle, G; Taylor, G; Tucker, D L; Weaverdyck, N; Wilkinson, R D;
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 520:Issue 2(2023)
• Page Start: 2009
• Page End: 2023
• Publication Date: 2023-01-16
• Subjects: galaxies: active -- galaxies: nuclei -- quasars: emission lines -- quasars: general -- quasars: supermassive black holes; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/stad145
• Languages: English
• ISSNs: 0035-8711

Abstract

ABSTRACT: Reverberation mapping measurements have been used to constrain the relationship between the size of the broad-line region and luminosity of active galactic nuclei (AGN). This R – L relation is used to estimate single-epoch virial black hole masses, and has been proposed to use to standardize AGN to determine cosmological distances. We present reverberation measurements made with Hβ from the 6-yr Australian Dark Energy Survey (OzDES) Reverberation Mapping Program. We successfully recover reverberation lags for eight AGN at 0.12 < z < 0.71, probing higher redshifts than the bulk of Hβ measurements made to date. Our fit to the R – L relation has a slope of α = 0.41 ± 0.03 and an intrinsic scatter of σ = 0.23 ± 0.02 dex. The results from our multi-object spectroscopic survey are consistent with previous measurements made by dedicated source-by-source campaigns, and with the observed dependence on accretion rate. Future surveys, including LSST, TiDES, and SDSS-V, which will be revisiting some of our observed fields, will be able to build on the results of our first-generation multi-object reverberation mapping survey.