IHEP OpenIR  > 粒子天体物理中心
The influence of the Insight-HXMT/LE time response on timing analysis
Zhou, Deng-Ke; Zheng, Shi-Jie; Song, Li-Ming; Chen, Yong; Li, Cheng-Kui; Li, Xiao-Bo; Chen, Tian-Xiang; Cui, Wei-Wei; Chen, Wei; Han, Da-Wei; Hu, Wei; Huo, Jia; Ma, Rui-Can; Li, Mao-Shun; Li, Tian-Ming; Li, Wei; Liu, He-Xin; Lu, Bo; Lu, Fang-Jun; Qu, Jin-Lu; Tuo, You-Li; Wang, Juan; Wang, Yu-Sa; Wu, Bai-Yang; Xiao, Guang-Cheng; Xu, Yu-Peng; Yang, Yan-Ji; Zhang, Shu; Zhang, Zi-Liang; Zhao, Xiao-Fan; Zhu, Yu-Xuan
Source PublicationResearch in Astronomy and Astrophysics
AbstractThe LE is the low energy telescope that is carried on Insight-HXMT. It uses swept charge devices (SCDs) to detect soft X-ray photons. LE's time response is caused by the structure of the SCDs. With theoretical analysis and Monte Carlo simulations we discuss the influence of LE time response (LTR) on the timing analysis from three aspects: the power spectral density, the pulse profile and the time lag. After the LTR, the value of power spectral density monotonously decreases with the increasing frequency. The power spectral density of a sinusoidal signal reduces by a half at frequency 536 Hz. The corresponding frequency for quasi-periodic oscillation (QPO) signals is 458 Hz. The root mean square (RMS) of QPOs holds a similar behaviour. After the LTR, the centroid frequency and full width at half maxima (FWHM) of QPOs signals do not change. The LTR reduces the RMS of pulse profiles and shifts the pulse phase. In the time domain, the LTR only reduces the peak value of the cross-correlation function while it does not change the peak position; thus it will not affect the result of the time lag. When considering the time lag obtained from two instruments and one among them is LE, a 1.18 ms lag is expected caused by the LTR. The time lag calculated in the frequency domain is the same as that in the time domain.
WOS IDWOS:000616048500001
ADS Bibcode2021RAA....21....5Z
ADS URLhttps://ui.adsabs.harvard.edu/abs/2021RAA....21....5Z
Citation statistics
Cited Times:2 [ADS]
Document Type期刊论文
Recommended Citation
GB/T 7714
Zhou, Deng-Ke,Zheng, Shi-Jie,Song, Li-Ming,et al. The influence of the Insight-HXMT/LE time response on timing analysis[J]. Research in Astronomy and Astrophysics,2021,21:5.
APA Zhou, Deng-Ke.,Zheng, Shi-Jie.,Song, Li-Ming.,Chen, Yong.,Li, Cheng-Kui.,...&Zhu, Yu-Xuan.(2021).The influence of the Insight-HXMT/LE time response on timing analysis.Research in Astronomy and Astrophysics,21,5.
MLA Zhou, Deng-Ke,et al."The influence of the Insight-HXMT/LE time response on timing analysis".Research in Astronomy and Astrophysics 21(2021):5.
Files in This Item:
File Name/Size DocType Version Access License
144.pdf(792KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhou, Deng-Ke]'s Articles
[Zheng, Shi-Jie]'s Articles
[Song, Li-Ming]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhou, Deng-Ke]'s Articles
[Zheng, Shi-Jie]'s Articles
[Song, Li-Ming]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhou, Deng-Ke]'s Articles
[Zheng, Shi-Jie]'s Articles
[Song, Li-Ming]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.