The Sloan Digital Sky Survey Reverberation Mapping Project: improving lag detection with an extended multiyear baseline

Yue Shen; C. J. Grier; Keith Horne; W. N. Brandt; J. R. Trump; P. B. Hall; K. Kinemuchi; David Starkey; D. P. Schneider; Luis C. Ho; Y. Homayouni; Jennifer I-Hsiu Li; Ian D. McGreer; B. M. Peterson; Dmitry Bizyaev; Yuguang Chen; K. S. Dawson; Sarah Eftekharzadeh; P. J. Green; Yucheng Guo; Siyao Jia; Linhua Jiang; Jean-Paul Kneib; Feng Li; Zefeng Li; Jundan Nie; Audrey Oravetz; Daniel Oravetz; Kaike Pan; Patrick Petitjean; Kara A. Ponder; Jesse Rogerson; M. Vivek; Tianmeng Zhang; Hu Zou

doi:10.3847/2041-8213/ab3e0f

The Sloan Digital Sky Survey Reverberation Mapping Project: improving lag detection with an extended multiyear baseline

Yue Shen, C. J. Grier, Keith Horne, W. N. Brandt, J. R. Trump, P. B. Hall, K. Kinemuchi, David Starkey, D. P. Schneider, Luis C. Ho, Y. Homayouni, Jennifer I-Hsiu Li, Ian D. McGreer, B. M. Peterson, Dmitry Bizyaev, Yuguang Chen, K. S. Dawson, Sarah Eftekharzadeh, P. J. Green, Yucheng GuoSiyao Jia, Linhua Jiang, Jean-Paul Kneib, Feng Li, Zefeng Li, Jundan Nie, Audrey Oravetz, Daniel Oravetz, Kaike Pan, Patrick Petitjean, Kara A. Ponder, Jesse Rogerson, M. Vivek, Tianmeng Zhang, Hu Zou

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Abstract

We investigate the effects of extended multiyear light curves (9 yr photometry and 5 yr spectroscopy) on the detection of time lags between the continuum variability and broad-line response of quasars at z ≳ 1.5, and compare with the results using 4 yr photometry+spectroscopy presented in a companion paper. We demonstrate the benefits of the extended light curves in three cases: (1) lags that are too long to be detected by the shorter-duration data but can be detected with the extended data; (2) lags that are recovered by the extended light curves but are missed in the shorter-duration data due to insufficient light-curve quality; and (3) lags for different broad-line species in the same object. These examples demonstrate the importance of long-term monitoring for reverberation mapping to detect lags for luminous quasars at high redshift, and the expected performance of the final data set from the Sloan Digital Sky Survey Reverberation Mapping project that will have 11 yr photometric and 7 yr spectroscopic baselines.

Original language	English
Article number	L14
Number of pages	8
Journal	Astrophysical Journal
Volume	883
Issue number	1
DOIs	https://doi.org/10.3847/2041-8213/ab3e0f
Publication status	Published - 19 Sept 2019

Keywords

Astrophysical black holes
Quasars
Reverberation mapping
Supermassive black holes
Surveys

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Shen_2019_ApJL_Lagdetection_FinalPubVersion
Copyright © 2019. The American Astronomical Society. All rights reserved. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.3847/2041-8213/ab3e0f
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Astronomy at St Andrews 2018-2021: Astronomy at St Andrews 2018-2021
Jardine, M. M. (PI), Bonnell, I. A. (CoI), Cameron, A. C. (CoI), Cyganowski, C. J. (CoI), Dominik, M. (CoI), Helling, C. (CoI), Horne, K. D. (CoI), Scholz, A. (CoI), Tojeiro, R. (CoI), Weijmans, A.-M. (CoI), Wild, V. (CoI), Woitke, P. (CoI), Wood, K. (CoI) & Zhao, H. (CoI)
1/04/18 → 31/03/22
Project: Standard

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Shen, Y., Grier, C. J., Horne, K., Brandt, W. N., Trump, J. R., Hall, P. B., Kinemuchi, K., Starkey, D., Schneider, D. P., Ho, L. C., Homayouni, Y., Li, J. I.-H., McGreer, I. D., Peterson, B. M., Bizyaev, D., Chen, Y., Dawson, K. S., Eftekharzadeh, S., Green, P. J., ... Zou, H. (2019). The Sloan Digital Sky Survey Reverberation Mapping Project: improving lag detection with an extended multiyear baseline. Astrophysical Journal, 883(1), Article L14. https://doi.org/10.3847/2041-8213/ab3e0f

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title = "The Sloan Digital Sky Survey Reverberation Mapping Project: improving lag detection with an extended multiyear baseline",

abstract = "We investigate the effects of extended multiyear light curves (9 yr photometry and 5 yr spectroscopy) on the detection of time lags between the continuum variability and broad-line response of quasars at z ≳ 1.5, and compare with the results using 4 yr photometry+spectroscopy presented in a companion paper. We demonstrate the benefits of the extended light curves in three cases: (1) lags that are too long to be detected by the shorter-duration data but can be detected with the extended data; (2) lags that are recovered by the extended light curves but are missed in the shorter-duration data due to insufficient light-curve quality; and (3) lags for different broad-line species in the same object. These examples demonstrate the importance of long-term monitoring for reverberation mapping to detect lags for luminous quasars at high redshift, and the expected performance of the final data set from the Sloan Digital Sky Survey Reverberation Mapping project that will have 11 yr photometric and 7 yr spectroscopic baselines.",

keywords = "Astrophysical black holes, Quasars, Reverberation mapping, Supermassive black holes, Surveys",

author = "Yue Shen and Grier, {C. J.} and Keith Horne and Brandt, {W. N.} and Trump, {J. R.} and Hall, {P. B.} and K. Kinemuchi and David Starkey and Schneider, {D. P.} and Ho, {Luis C.} and Y. Homayouni and Li, {Jennifer I-Hsiu} and McGreer, {Ian D.} and Peterson, {B. M.} and Dmitry Bizyaev and Yuguang Chen and Dawson, {K. S.} and Sarah Eftekharzadeh and Green, {P. J.} and Yucheng Guo and Siyao Jia and Linhua Jiang and Jean-Paul Kneib and Feng Li and Zefeng Li and Jundan Nie and Audrey Oravetz and Daniel Oravetz and Kaike Pan and Patrick Petitjean and Ponder, {Kara A.} and Jesse Rogerson and M. Vivek and Tianmeng Zhang and Hu Zou",

year = "2019",

month = sep,

day = "19",

doi = "10.3847/2041-8213/ab3e0f",

language = "English",

volume = "883",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

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Shen, Y, Grier, CJ, Horne, K, Brandt, WN, Trump, JR, Hall, PB, Kinemuchi, K, Starkey, D, Schneider, DP, Ho, LC, Homayouni, Y, Li, JI-H, McGreer, ID, Peterson, BM, Bizyaev, D, Chen, Y, Dawson, KS, Eftekharzadeh, S, Green, PJ, Guo, Y, Jia, S, Jiang, L, Kneib, J-P, Li, F, Li, Z, Nie, J, Oravetz, A, Oravetz, D, Pan, K, Petitjean, P, Ponder, KA, Rogerson, J, Vivek, M, Zhang, T & Zou, H 2019, 'The Sloan Digital Sky Survey Reverberation Mapping Project: improving lag detection with an extended multiyear baseline', Astrophysical Journal, vol. 883, no. 1, L14. https://doi.org/10.3847/2041-8213/ab3e0f

TY - JOUR

T1 - The Sloan Digital Sky Survey Reverberation Mapping Project

T2 - improving lag detection with an extended multiyear baseline

AU - Shen, Yue

AU - Grier, C. J.

AU - Horne, Keith

AU - Brandt, W. N.

AU - Trump, J. R.

AU - Hall, P. B.

AU - Kinemuchi, K.

AU - Starkey, David

AU - Schneider, D. P.

AU - Ho, Luis C.

AU - Homayouni, Y.

AU - Li, Jennifer I-Hsiu

AU - McGreer, Ian D.

AU - Peterson, B. M.

AU - Bizyaev, Dmitry

AU - Chen, Yuguang

AU - Dawson, K. S.

AU - Eftekharzadeh, Sarah

AU - Green, P. J.

AU - Guo, Yucheng

AU - Jia, Siyao

AU - Jiang, Linhua

AU - Kneib, Jean-Paul

AU - Li, Feng

AU - Li, Zefeng

AU - Nie, Jundan

AU - Oravetz, Audrey

AU - Oravetz, Daniel

AU - Pan, Kaike

AU - Petitjean, Patrick

AU - Ponder, Kara A.

AU - Rogerson, Jesse

AU - Vivek, M.

AU - Zhang, Tianmeng

AU - Zou, Hu

PY - 2019/9/19

Y1 - 2019/9/19

N2 - We investigate the effects of extended multiyear light curves (9 yr photometry and 5 yr spectroscopy) on the detection of time lags between the continuum variability and broad-line response of quasars at z ≳ 1.5, and compare with the results using 4 yr photometry+spectroscopy presented in a companion paper. We demonstrate the benefits of the extended light curves in three cases: (1) lags that are too long to be detected by the shorter-duration data but can be detected with the extended data; (2) lags that are recovered by the extended light curves but are missed in the shorter-duration data due to insufficient light-curve quality; and (3) lags for different broad-line species in the same object. These examples demonstrate the importance of long-term monitoring for reverberation mapping to detect lags for luminous quasars at high redshift, and the expected performance of the final data set from the Sloan Digital Sky Survey Reverberation Mapping project that will have 11 yr photometric and 7 yr spectroscopic baselines.

AB - We investigate the effects of extended multiyear light curves (9 yr photometry and 5 yr spectroscopy) on the detection of time lags between the continuum variability and broad-line response of quasars at z ≳ 1.5, and compare with the results using 4 yr photometry+spectroscopy presented in a companion paper. We demonstrate the benefits of the extended light curves in three cases: (1) lags that are too long to be detected by the shorter-duration data but can be detected with the extended data; (2) lags that are recovered by the extended light curves but are missed in the shorter-duration data due to insufficient light-curve quality; and (3) lags for different broad-line species in the same object. These examples demonstrate the importance of long-term monitoring for reverberation mapping to detect lags for luminous quasars at high redshift, and the expected performance of the final data set from the Sloan Digital Sky Survey Reverberation Mapping project that will have 11 yr photometric and 7 yr spectroscopic baselines.

KW - Astrophysical black holes

KW - Quasars

KW - Reverberation mapping

KW - Supermassive black holes

KW - Surveys

U2 - 10.3847/2041-8213/ab3e0f

DO - 10.3847/2041-8213/ab3e0f

M3 - Article

SN - 0004-637X

VL - 883

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - L14

ER -

The Sloan Digital Sky Survey Reverberation Mapping Project: improving lag detection with an extended multiyear baseline

Abstract

Keywords

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Astronomy at St Andrews 2018-2021: Astronomy at St Andrews 2018-2021

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