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arXiv · 2210.03977

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

Umang Malik·Rob Sharp·A. Penton·Z. Yu·P. Martini·C. Lidman·B. E. Tucker·T. M. Davis·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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Umang Malik, Rob Sharp, A. Penton, Z. Yu, P. Martini, C. Lidman, B. E. Tucker, T. M. Davis, 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. 2022-10-08. OzDES Reverberation Mapping Program: H$\beta$ lags from the 6-year survey. https://doi.org/10.1093/mnras%2Fstad145

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