A BAYESIAN METHOD FOR THE INTERCALIBRATION OF SPECTRA IN REVERBERATION MAPPING
Li YR(李彦荣); Wang JM(王建民); Hu C(胡晨); 杜璞;Li, YR; Wang, JM; Hu, C; Du, P; Bai, JM
刊名ASTROPHYSICAL JOURNAL LETTERS
2014
卷号786期号:1页码:L6
关键词galaxies: active methods: data analysis methods: statistical quasars: general
学科分类Astronomy & Astrophysics
DOI10.1088/2041-8205/786/1/L6
英文摘要Flux calibration of spectra in reverberation mapping (RM) is most often performed by assuming the flux constancy of some specified narrow emission lines, which stem from an extended region that is sometimes partially spatially resolved, in contrast to the point-like broad-line region and the central continuum source. The inhomogeneous aperture geometries used among different observation sets in a joint monitoring campaign introduce systematic deviations to the fluxes of broad lines and central continuum, and intercalibration over these data sets is required. As an improvement to the previous empirical correction performed by comparing the (nearly) contemporaneous observation points, we describe a feasible Bayesian method that obviates the need for (nearly) contemporaneous observations, naturally incorporates physical models of flux variations, and fully takes into account the measurement errors. In particular, it fits all the data sets simultaneously regardless of samplings and makes use of all of the information in the data sets. A Markov Chain Monte Carlo implementation is employed to recover the parameters and uncertainties for intercalibration. Application to the RM data sets of NGC 5548 with joint monitoring shows the high fidelity of our method.
收录类别SCI
WOS记录号WOS:000334929600006
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224852
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
中国科学院高能物理研究所_粒子天体物理中心
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Li YR,Wang JM,Hu C,et al. A BAYESIAN METHOD FOR THE INTERCALIBRATION OF SPECTRA IN REVERBERATION MAPPING[J]. ASTROPHYSICAL JOURNAL LETTERS,2014,786(1):L6.
APA 李彦荣.,王建民.,胡晨.,杜璞;Li, YR.,Wang, JM.,...&Bai, JM.(2014).A BAYESIAN METHOD FOR THE INTERCALIBRATION OF SPECTRA IN REVERBERATION MAPPING.ASTROPHYSICAL JOURNAL LETTERS,786(1),L6.
MLA 李彦荣,et al."A BAYESIAN METHOD FOR THE INTERCALIBRATION OF SPECTRA IN REVERBERATION MAPPING".ASTROPHYSICAL JOURNAL LETTERS 786.1(2014):L6.
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