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OzDES reverberation mapping program: Lag recovery reliability for 6-yr C iv analysis

Publication ,  Journal Article
Penton, A; Malik, U; Davis, TM; Martini, P; Yu, Z; Sharp, R; Lidman, C; Tucker, BE; Hoormann, JK; Aguena, M; Allam, S; Annis, J; Asorey, J ...
Published in: Monthly Notices of the Royal Astronomical Society
January 1, 2022

We present the statistical methods that have been developed to analyse the OzDES reverberation mapping sample. To perform this statistical analysis we have created a suite of customizable simulations that mimic the characteristics of each source in the OzDES sample. These characteristics include: the variability in the photometric and spectroscopic light curves, the measurement uncertainties, and the observational cadence. By simulating the sources in the OzDES sample that contain the C iv emission line, we developed a set of criteria that rank the reliability of a recovered time-lag depending on the agreement between different recovery methods, the magnitude of the uncertainties, and the rate at which false positives were found in the simulations. These criteria were applied to simulated light curves and these results used to estimate the quality of the resulting Radius-Luminosity relation. We grade the results using three quality levels (gold, silver, and bronze). The input slope of the R-L relation was recovered within 1σ for each of the three quality samples, with the gold standard having the lowest dispersion with a recovered a R-L relation slope of 0.454 ± 0.016 with an input slope of 0.47. Future work will apply these methods to the entire OzDES sample of 771 AGN.

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Published In

Monthly Notices of the Royal Astronomical Society

DOI

EISSN

1365-2966

ISSN

0035-8711

Publication Date

January 1, 2022

Volume

509

Issue

3

Start / End Page

4008 / 4023

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0201 Astronomical and Space Sciences
 

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Penton, A., Malik, U., Davis, T. M., Martini, P., Yu, Z., Sharp, R., … Lewis, G. (2022). OzDES reverberation mapping program: Lag recovery reliability for 6-yr C iv analysis. Monthly Notices of the Royal Astronomical Society, 509(3), 4008–4023. https://doi.org/10.1093/mnras/stab3027
Penton, A., U. Malik, T. M. Davis, P. Martini, Z. Yu, R. Sharp, C. Lidman, et al. “OzDES reverberation mapping program: Lag recovery reliability for 6-yr C iv analysis.” Monthly Notices of the Royal Astronomical Society 509, no. 3 (January 1, 2022): 4008–23. https://doi.org/10.1093/mnras/stab3027.
Penton A, Malik U, Davis TM, Martini P, Yu Z, Sharp R, et al. OzDES reverberation mapping program: Lag recovery reliability for 6-yr C iv analysis. Monthly Notices of the Royal Astronomical Society. 2022 Jan 1;509(3):4008–23.
Penton, A., et al. “OzDES reverberation mapping program: Lag recovery reliability for 6-yr C iv analysis.” Monthly Notices of the Royal Astronomical Society, vol. 509, no. 3, Jan. 2022, pp. 4008–23. Scopus, doi:10.1093/mnras/stab3027.
Penton A, Malik U, Davis TM, Martini P, Yu Z, Sharp R, Lidman C, Tucker BE, Hoormann JK, Aguena M, Allam S, Annis J, Asorey J, Bacon D, Bertin E, Bhargava S, Brooks D, Calcino J, Carnero Rosell A, Carollo D, Carrasco Kind M, Carretero J, Costanzi M, Da Costa LN, Pereira MES, De Vicente J, Diehl HT, Eifler TF, Everett S, Ferrero I, Fosalba P, Frieman J, García-Bellido J, Gaztanaga E, Gerdes DW, Gruen D, Gruendl RA, Gschwend J, Gutierrez G, Hinton SR, Hollowood DL, Honscheid K, James DJ, Kim AG, Kuehn K, Kuropatkin N, Maia MAG, Marshall JL, Menanteau F, Miquel R, Morgan R, Möller A, Palmese A, Paz-Chinchón F, Plazas AA, Romer AK, Sanchez E, Scarpine V, Scolnic D, Serrano S, Smith M, Suchyta E, Swanson MEC, Tarle G, To C, Uddin SA, Varga TN, Wester W, Wilkinson RD, Lewis G. OzDES reverberation mapping program: Lag recovery reliability for 6-yr C iv analysis. Monthly Notices of the Royal Astronomical Society. 2022 Jan 1;509(3):4008–4023.
Journal cover image

Published In

Monthly Notices of the Royal Astronomical Society

DOI

EISSN

1365-2966

ISSN

0035-8711

Publication Date

January 1, 2022

Volume

509

Issue

3

Start / End Page

4008 / 4023

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0201 Astronomical and Space Sciences