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A new approach for measuring power spectra and reconstructing time series in active galactic nuclei
Li YR(李彦荣); Wang JM(王建民); Li, YR; Wang, JM; Li, Yan-Rong; Wang, Jian-Min
2018
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
EISSN1365-2966
Volume476Issue:1Pages:L55-L59
SubtypeArticle
AbstractWe 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.
Keywordmethods: data analysis methods: statistical galaxies: active
DOI10.1093/mnrasl/sly028
WOS KeywordX-RAY VARIABILITY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000452745800012
ADS Bibcode2018MNRAS.476L..55L
AXRIV CODE1802
inspireid1656900
Citation statistics
Cited Times:5 [INSPIRE]
Cited Times:10 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/286908
Collection粒子天体物理中心
Corresponding AuthorLi YR(李彦荣)
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Corresponding Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Li YR,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 李彦荣,王建民,Li, YR,Wang, JM,Li, Yan-Rong,&Wang, Jian-Min.(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 李彦荣,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.
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