The Sloan Digital Sky Survey Reverberation Mapping Project: Sample Characterization
The Sloan Digital Sky Survey Reverberation Mapping Project: Sample Characterization
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DOI：
10.3847/1538-4365/ab074f
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发表时间：
2018-10
期刊：
影响因子：
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通讯作者：
Yue Shen;P. Hall;K. Horne;G. Zhu;I. McGreer;T. Simm;J. Trump;K. Kinemuchi;W. Brandt;
中科院分区：
文献类型：
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作者：
Yue Shen;P. Hall;K. Horne;G. Zhu;I. McGreer;T. Simm;J. Trump;K. Kinemuchi;W. Brandt;
我们详细描述了斯隆数字巡天混响测绘(SDSS-RM)项目中的849个宽线类星体的特征。我们的类星体样本覆盖了0.1<；z<；4.5的红移范围，并且通量受限于IPSF<；21.7，对类星体性质没有任何其他削减。主要的样品表征包括：(1)2014年来自共加第一季光谱的单个物体的连续谱和宽发射线的光谱测量，(2)光谱中宽和窄吸收线的识别，以及(3)来自多历元光谱的连续谱和宽谱的光学变异性。我们为所有类星体提供了改进的系统红移估计，并演示了信噪比对光谱测量的影响。我们汇编了所有849个类星体的测量性质，以及来自其他调查的样本子集的补充多波长数据。SDSS-RM样本探测了不同范围的类星体属性，并从第一季监测数据中显示了许多天体的良好检测到的连续和宽线可变性。汇编的属性作为基于SDSS-RM数据的后续工作的基准。随着这项工作的进行，光谱拟合工具也被公开。
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 iPSF < 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.