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

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Shen_2019_ApJL_Lagdetection_FinalPubVersion.pdf (2.810Mb)
Date
19/09/2019
Author
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
Keywords
Astrophysical black holes
Quasars
Reverberation mapping
Supermassive black holes
Surveys
QB Astronomy
3rd-NDAS
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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.
Citation
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 , Guo , Y , Jia , S , Jiang , L , Kneib , J-P , Li , F , Li , Z , Nie , J , Oravetz , A , Oravetz , D , Pan , K , Petitjean , P , Ponder , K A , 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
Publication
Astrophysical Journal
Status
Peer reviewed
DOI
https://doi.org/10.3847/2041-8213/ab3e0f
ISSN
0004-637X
Type
Journal article
Rights
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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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/18823

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