The Sloan Digital Sky Survey Reverberation Mapping Project : sample characterization
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We present a detailed characterization of the 849 broad-line quasars from the Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project. Our quasar sample covers a redshift range of 0.1 < z < 4.5 and is flux-limited to i PSF < 21.7 without any other cuts on quasar properties. The main sample characterization includes: (1) spectral measurements of the continuum and broad emission lines for individual objects from the coadded first-season spectroscopy in 2014, (2) identification of broad and narrow absorption lines in the spectra, and (3) optical variability properties for continuum and broad lines from multi-epoch spectroscopy. We provide improved systemic redshift estimates for all quasars and demonstrate the effects of the signal-to-noise ratio on the spectral measurements. We compile measured properties for all 849 quasars along with supplemental multi-wavelength data for subsets of our sample from other surveys. The SDSS-RM sample probes a diverse range in quasar properties and shows well-detected continuum and broad-line variability for many objects from first-season monitoring data. The compiled properties serve as the benchmark for follow-up work based on SDSS-RM data. The spectral fitting tools are made public along with this work.
Shen , Y , Hall , P B , Horne , K , Zhu , G , McGreer , I , Simm , T , Trump , J R , Kinemuchi , K , Brandt , W N , Green , P J , Grier , C J , Guo , H , Ho , L C , Homayouni , Y , Jiang , L , Li , J I-H , Morganson , E , Petitjean , P , Richards , G T , Schneider , D P , Starkey , D A , Wang , S , Chambers , K , Kaiser , N , Kudritzki , R-P , Magnier , E & Waters , C 2019 , ' The Sloan Digital Sky Survey Reverberation Mapping Project : sample characterization ' Astrophysical Journal Supplement Series , vol. 241 , no. 2 , 34 . https://doi.org/10.3847/1538-4365/ab074f
Astrophysical Journal Supplement Series
Copyright © 2019. The American Astronomical Society. All rights reserved. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at: https://doi.org/10.3847/1538-4365/ab074f
DescriptionY.S. acknowledges support from an Alfred P. Sloan Research Fellowship and NSF grant AST-1715579. P.H. acknowledges support from the Natural Sciences and Engineering Research Council of Canada (NSERC), funding reference number 2017-05983. W.N.B. acknowledges support from NSF grant AST-1516784. C.J.G., W.N.B., and D.P.S. acknowledge support from NSF grant AST-1517113. Funding for SDSS-III has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, and the U.S. Department of Energy Office of Science.
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