A new approach for measuring power spectra and reconstructing time series in active galactic nuclei
文献类型：期刊论文
| 作者 | Wang, Jian-Min ; Wang, JM; Li YR(李彦荣); Li, YR; Wang JM(王建民); Li, Yan-Rong
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2018 |
| 卷号 | 476期号:1页码:L55-L59 |
| 关键词 | methods: data analysis methods: statistical galaxies: active |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnrasl/sly028 |
| 文献子类 | Article |
| 英文摘要 | We provide a new approach to measure power spectra and reconstruct time series in active galactic nuclei (AGNs) based on the fact that the Fourier transform of AGN stochastic variations is a series of complex Gaussian random variables. The approach parametrizes a stochastic series in frequency domain and transforms it back to time domain to fit the observed data. The parameters and their uncertainties are derived in a Bayesian framework, which also allows us to compare the relative merits of different power spectral density models. The well-developed fast Fourier transform algorithm together with parallel computation enables an acceptable time complexity for the approach. |
| 电子版国际标准刊号 | 1365-2966 |
| WOS关键词 | X-RAY VARIABILITY |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000452745800012 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286908]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 通讯作者 | Li YR(李彦荣) |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Jian-Min,Wang, JM,Li YR,et al. A new approach for measuring power spectra and reconstructing time series in active galactic nuclei[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,476(1):L55-L59. |
| APA | Wang, Jian-Min,Wang, JM,李彦荣,Li, YR,王建民,&Li, Yan-Rong.(2018).A new approach for measuring power spectra and reconstructing time series in active galactic nuclei.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,476(1),L55-L59. |
| MLA | Wang, Jian-Min,et al."A new approach for measuring power spectra and reconstructing time series in active galactic nuclei".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 476.1(2018):L55-L59. |
入库方式： OAI收割
来源：高能物理研究所
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