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

Research output: Contribution to journalArticle

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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 z1.5, 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 languageEnglish (US)
Article numberL14
JournalAstrophysical Journal Letters
Volume883
Issue number1
DOIs
StatePublished - Sep 20 2019

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reverberation
time lag
light curve
spectroscopy
quasars
photometry
detection
project
continuums
monitoring

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Shen, Yue ; Grier, C. J. ; Horne, Keith ; Brandt, W. N. ; Trump, J. R. ; Hall, P. B. ; Kinemuchi, K. ; Starkey, David ; Schneider, D. P. ; Ho, Luis C. ; Homayouni, Y. ; Li, Jennifer I.Hsiu ; McGreer, Ian D. ; Peterson, B. M. ; Bizyaev, Dmitry ; Chen, Yuguang ; Dawson, K. S. ; Eftekharzadeh, Sarah ; Green, P. J. ; Guo, Yucheng ; Jia, Siyao ; Jiang, Linhua ; Kneib, Jean Paul ; Li, Feng ; Li, Zefeng ; Nie, Jundan ; Oravetz, Audrey ; Oravetz, Daniel ; Pan, Kaike ; Petitjean, Patrick ; Ponder, Kara A. ; Rogerson, Jesse ; Vivek, M. ; Zhang, Tianmeng ; Zou, Hu. / The Sloan Digital Sky Survey Reverberation Mapping Project : Improving Lag Detection with an Extended Multiyear Baseline. In: Astrophysical Journal Letters. 2019 ; Vol. 883, No. 1.
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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 z1.5, 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.",
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 Kneib, {Jean Paul} 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",
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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, JIH, McGreer, ID, Peterson, BM, Bizyaev, D, Chen, Y, Dawson, KS, Eftekharzadeh, S, Green, PJ, Guo, Y, Jia, S, Jiang, L, Kneib, JP, 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 Letters, vol. 883, no. 1, L14. https://doi.org/10.3847/2041-8213/ab3e0f

The Sloan Digital Sky Survey Reverberation Mapping Project : Improving Lag Detection with an Extended Multiyear Baseline. / Shen, Yue; Grier, C. J.; Horne, Keith; Brandt, W. N.; Trump, J. R.; Hall, P. B.; Kinemuchi, K.; Starkey, David; Schneider, D. P.; Ho, Luis C.; Homayouni, Y.; Li, Jennifer I.Hsiu; McGreer, Ian D.; Peterson, B. M.; Bizyaev, Dmitry; Chen, Yuguang; Dawson, K. S.; Eftekharzadeh, Sarah; Green, P. J.; Guo, Yucheng; Jia, Siyao; Jiang, Linhua; Kneib, Jean Paul; Li, Feng; Li, Zefeng; Nie, Jundan; Oravetz, Audrey; Oravetz, Daniel; Pan, Kaike; Petitjean, Patrick; Ponder, Kara A.; Rogerson, Jesse; Vivek, M.; Zhang, Tianmeng; Zou, Hu.

In: Astrophysical Journal Letters, Vol. 883, No. 1, L14, 20.09.2019.

Research output: Contribution to journalArticle

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 - 2019/9/20

Y1 - 2019/9/20

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 z1.5, 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 z1.5, 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.

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UR - http://www.scopus.com/inward/citedby.url?scp=85073054551&partnerID=8YFLogxK

U2 - 10.3847/2041-8213/ab3e0f

DO - 10.3847/2041-8213/ab3e0f

M3 - Article

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JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

SN - 2041-8205

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