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OzDES Reverberation Mapping Program: H$\beta$ lags from the 6-year survey

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arxiv 2210.03977 v2 pith:DDGXUANS submitted 2022-10-08 astro-ph.GA

Umang Malik , Rob Sharp , A. Penton , Z. Yu , P. Martini , C. Lidman , B. E. Tucker , T. M. Davis
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G. F. Lewis M. Aguena S. Allam O. Alves F. Andrade-Oliveira J. Asorey D. Bacon E. Bertin S. Bocquet D. Brooks D. L. Burke A. Carnero Rosell D. Carollo M. Carrasco Kind J. Carretero M. Costanzi L. N. da Costa M. E. S. Pereira J. De Vicente S. Desai H. T. Diehl P. Doel S. Everett I. Ferrero J. Frieman J. García-Bellido D. W. Gerdes D. Gruen R. A. Gruendl J. Gschwend S. R. Hinton D. L. Hollowood K. Honscheid D. J. James K. Kuehn J. L. Marshall J. Mena-Fernández F. Menanteau R. Miquel R. L. C. Ogando A. Palmese F. Paz-Chinchón A. Pieres A. A. Plazas Malagón M. Raveri M. Rodriguez-Monroy A. K. Romer E. Sanchez V. Scarpine I. Sevilla-Noarbe M. Smith M. Soares-Santos E. Suchyta M. E. C. Swanson G. Tarle G. Taylor D. L. Tucker N. Weaverdyck R. D. Wilkinson
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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 for use to standardise AGN to determine cosmological distances. We present reverberation measurements made with H$\beta$ from the six-year 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 H$\beta$ measurements made to date. Our fit to the $R-L$ relation has a slope of $\alpha=0.41\pm0.03$ and an intrinsic scatter of $\sigma=0.23\pm0.02$ 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.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. AGN Reverberation Mapping with LITMUS: Fundamental Limits on lag Recovery Rates

    astro-ph.CO 2026-08 conditional novelty 7.0 of 10

    A Bayesian re-analysis of 906 OzDES AGN finds that previous reverberation lags, especially for MgII and CIV, are often false positives, with only 3-28% of MgII sources showing simple lags.

  2. Red, hot, and very metal poor: extreme properties of a massive accreting black hole in the first 500 Myr

    astro-ph.GA 2024-12 conditional novelty 6.0 of 10

    A compact galaxy at z=8.63 hosts a 100-million-solar-mass accreting black hole with broad H-beta, high-ionization UV lines, and very low metallicity.

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