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Cited by 244Galaxies: Formation, Evolution, PhenomenaAstrophysical Phenomena and ObservationsStellar, planetary, and galactic studies

The Sloan Digital Sky Survey Reverberation Mapping Project: Hα and Hβ Reverberation Measurements from First-year Spectroscopy and Photometry

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Grier, C. J., Trump, J. R., Shen, Yue, Horne, Keith, Kinemuchi, Karen, McGreer, Ian D., Starkey, D. A., Brandt, W. N. +34 more·2017·The Astrophysical Journal
DOI 10.3847/1538-4357/aa98dc
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Abstract

We present reverberation mapping results from the first year of combined spectroscopic and photometric observations of the Sloan Digital Sky Survey Reverberation Mapping Project. We successfully recover reverberation time delays between the g+i band emission and the broad H β emission line for a total of 44 quasars, and for the broad H α emission line in 18 quasars. Time delays are computed using the JAVELIN and CREAM software and the traditional interpolated cross-correlation function (ICCF): using well-defined criteria, we report measurements of 32 H β and 13 H α lags with JAVELIN, 42 H β and 17 H α lags with CREAM, and 16 H β and eight H α lags with the ICCF. Lag values are generally consistent among the three methods, though we typically measure smaller uncertainties with JAVELIN and CREAM than with the ICCF, given the more physically motivated light curve interpolation and more robust statistical modeling of the former two methods. The median redshift of our H β-detected sample of quasars is 0.53, significantly higher than that of the previous reverberation mapping sample. We find that in most objects, the time delay of the H α emission is consistent with or slightly longer than that of H β. We measure black hole masses using our measured time delays and line widths for these quasars. These black hole mass measurements are mostly consistent with expectations based on the local – relationship, and are also consistent with single-epoch black hole mass measurements. This work increases the current sample size of reverberation-mapped active galaxies by about two-thirds and represents the first large sample of reverberation mapping observations beyond the local universe (z < 0.3).

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  • LSST's superb AGN continuum light curves will enable economical piggyback reverberation-mapping using emission-line spectroscopy.

    “The superb continuum light curves of AGNs will enable economical ' piggyback ' reverberation-mapping efforts using spectroscopy of emission lines”

    From LSST: From Science Drivers to Reference Design and Anticipated Data Products (2019) · cites this paper as Grier et al. 2017

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Authors
Grier, C. J., Trump, J. R., Shen, Y., Horne, K., Kinemuchi, K., McGreer, I. D., Starkey, D. A., Brandt, W. N., Hall, P. B., Kochanek, C. S., Chen, Y., Denney, K. D., Greene, J. E., Ho, L. C., Homayouni, Y., Li, J. I.-H., Pei, L., Peterson, B. M., Petitjean, P., Schneider, D. P., Sun, M., AlSayyad, Y., Bizyaev, D., Brinkmann, J., Brownstein, J. R., Bundy, K., Dawson, K. S., Eftekharzadeh, S., Fernandez-Trincado, J. G., Gao, Y., Hutchinson, T. A., Jia, S., Jiang, L., Oravetz, D., Pan, K., Paris, I., Ponder, K. A., Peters, C., Rogerson, J., Simmons, A., Smith, R., & Wang, A. R.
Affiliations
  • Pennsylvania State University (US)
  • University of Illinois Urbana-Champaign (US)
  • University of St Andrews (GB)
  • New Mexico State University (US)
  • University of Arizona (US)
  • York University (CA)
  • The Ohio State University (US)
  • California Institute of Technology (US)
  • Princeton University (US)
  • Peking University (CN)
  • University of Connecticut (US)
  • Space Telescope Science Institute (US)
  • Centre National de la Recherche Scientifique (FR)
  • University of Science and Technology of China (CN)
  • University of Utah (US)
  • University of California, Santa Cruz (US)
  • University of Wyoming (US)
  • Tsinghua University (CN)
  • University of California, Berkeley (US)
  • University of Pittsburgh (US)
  • University of Toronto (CA)
  • University of Maryland, College Park (US)
ORCID
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2017-12-07
Volume
851
Issue
1
Pages
21
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.3847/1538-4357/aa98dc
OpenAlex
W2767610311
Cited by
244
References
77
Citations by year
2026: 11 · 2025: 26 · 2024: 27 · 2023: 25 · 2022: 27 · 2021: 38 · 2020: 37 · 2019: 36 · 2018: 14 · 2016: 3
FWCI
13.01
Type
journal article
Language
en
Open access
Licence
Locations
  • The Astrophysical Journal (publishedVersion, other-oa)
  • arXiv (Cornell University) (publishedVersion)
  • UA Campus Repository (The University of Arizona) (acceptedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • HAL (submittedVersion, other-oa)
  • HAL (submittedVersion)
  • St Andrews Research Repository (St Andrews Research Repository) (submittedVersion)
  • arXiv (Cornell University)
Funders
Science and Technology Facilities Council (ST/M001296/1)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysical Phenomena and Observations
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
Keywords
reverberation mapping, quasars, H-beta emission, H-alpha emission lines, black hole mass, broad emission lines, javelin, cream, M-sigma relation, active galactic nuclei, high-redshift quasars

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