中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
国家天文台 [1]
高能物理研究所 [1]
武汉植物园 [1]
云南天文台 [1]
生态环境研究中心 [1]
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OAI收割 [5]
内容类型
期刊论文 [4]
会议论文 [1]
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2021 [1]
2019 [1]
2017 [1]
2011 [2]
学科主题
Astronomy ... [1]
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Periodicity Search on X-Ray Bursts of SGR J1935+2154 Using 8.5 yr of Fermi/GBM Data
期刊论文
OAI收割
The Astrophysical Journal, 2021, 卷号: 923, 页码: L30
作者:
HXMT
  |  
收藏
  |  
浏览/下载:31/0
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提交时间:2022/02/08
2008
1471
Astrophysics - High Energy Astrophysical Phenomena
Abstract: We performed a systematic search for X-ray bursts of the SGR J1935+2154 using the Fermi Gamma-ray Burst Monitor continuous data dated from 2013 January to 2021 October. Eight bursting phases, which consist of a total of 353 individual bursts, are identified. We further analyze the periodic properties of our sample using the Lomb-Scargle periodogram. The result suggests that those bursts exhibit a period of ~238 days with a ~63.2% duty cycle. Based on our analysis, we further predict two upcoming active windows of the X-ray bursts. Since 2021 July, the beginning date of our first prediction has been confirmed by the ongoing X-ray activities of the SGR J1935+2154.
Evaluation and improvement of coastal GNSS reflectometry sea level variations from existing GNSS stations in Taiwan
期刊论文
OAI收割
ADVANCES IN SPACE RESEARCH, 2019, 卷号: 63, 期号: 3, 页码: 1280-1288
作者:
Lee, Chi-Ming
;
Kuo, Chung-Yen
;
Sun, Jian
;
Tseng, Tzu-Pang
;
Chen, Kwo-Hwa
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收藏
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浏览/下载:28/0
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提交时间:2019/04/10
Global navigation satellite systems (GNSS)
Signal-to-noise ratio (SNR)
Lomb-Scargle periodogram (LSP)
Tidal harmonic analysis
Window length selection of singular spectrum analysis and application to precipitation time series
期刊论文
OAI收割
GLOBAL NEST JOURNAL, 2017, 卷号: 19, 期号: 2, 页码: 306-317
作者:
Sun, Mingdong
;
Li, Xuyong
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收藏
  |  
浏览/下载:189/0
  |  
提交时间:2018/07/20
Singular Spectrum Analysis (Ssa)
Window Length
Periodogram Analysis
Linear Recurrent Formula (Lrf)
Long-Term Optical Spectra Variability of BL Lacertae Object S5 0716+714
期刊论文
OAI收割
JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 2011, 卷号: 32, 期号: 1-2, 页码: 131-135
作者:
Jing, Zhang Hao
;
Gang, Zhao
;
Xiong, Zhang
;
Ming, Bai Jing
;
Ling, Tang
收藏
  |  
浏览/下载:28/0
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提交时间:2017/06/23
BL Lac object individual: S5 0716+714
optical spectral index variability period
methods: periodogram analysis method, wavelet analysis method
Long-Term Optical Spectra Variability of BL Lacertae Object S5 0716+714
会议论文
OAI收割
Conference on Multiwavelength Variability of Blazars, Guangzhou, PEOPLES R CHINA, 2010-09-22
作者:
Zhang HJ(张皓晶)
;
Gang, Z
;
Xiong, Z
;
Bai JM(白金明)
;
Ling, T
收藏
  |  
浏览/下载:35/0
  |  
提交时间:2015/11/26
BL Lac object individual: S5 0716+714
optical spectral index variability period
methods: periodogram analysis method, wavelet analysis method