Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070
We present a time-frequency analysis, based on the Hilbert–Huang transform, of the evolution of the low-frequency quasiperiodic oscillations observed in the black hole X-ray binary MAXI J1820+070. Through the empirical mode decomposition method, we decompose the light curve of the quasiperiodic osci...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/acd756 |
| _version_ | 1797694243455631360 |
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| author | Wei Yu Qing-Cui Bu Zi-Xu Yang He-Xin Liu Liang Zhang Yue Huang Deng-Ke Zhou Jin-Lu Qu Shuang-Nan Zhang Shu Zhang Li-Ming Song Shu-Mei Jia Xiang Ma Lian Tao Ming-Yu Ge Qing-Zhong Liu Jing-Zhi Yan |
| author_facet | Wei Yu Qing-Cui Bu Zi-Xu Yang He-Xin Liu Liang Zhang Yue Huang Deng-Ke Zhou Jin-Lu Qu Shuang-Nan Zhang Shu Zhang Li-Ming Song Shu-Mei Jia Xiang Ma Lian Tao Ming-Yu Ge Qing-Zhong Liu Jing-Zhi Yan |
| author_sort | Wei Yu |
| collection | DOAJ |
| description | We present a time-frequency analysis, based on the Hilbert–Huang transform, of the evolution of the low-frequency quasiperiodic oscillations observed in the black hole X-ray binary MAXI J1820+070. Through the empirical mode decomposition method, we decompose the light curve of the quasiperiodic oscillation (QPO) component and measure its intrinsic phase lag between photons from different energy bands. We find that the QPO phase lag is negative (low-energy photons lag behind high-energy photons); meanwhile, the absolute value of the lag increases with energy. By applying the Hilbert transform to the light curve of the QPO, we further extract the instantaneous frequency and amplitude of the QPO. Comparing these results with those from the Fourier analysis, we find that the broadening of the QPO peak is mainly caused by frequency modulation. Through further analysis, we find that these modulations could share a common physical origin with the broadband noise, and can be well explained by the internal shock model of the jet. |
| first_indexed | 2024-03-12T02:55:08Z |
| format | Article |
| id | doaj.art-632c0d7c3f28459c98b35849a7bd5c54 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T02:55:08Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-632c0d7c3f28459c98b35849a7bd5c542023-09-03T15:18:26ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-01951213010.3847/1538-4357/acd756Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070Wei Yu0https://orcid.org/0000-0002-3229-2453Qing-Cui Bu1https://orcid.org/0000-0001-5238-3988Zi-Xu Yang2He-Xin Liu3https://orcid.org/0000-0002-8032-7024Liang Zhang4https://orcid.org/0000-0003-4498-9925Yue Huang5Deng-Ke Zhou6https://orcid.org/0000-0002-7420-9988Jin-Lu Qu7https://orcid.org/0000-0002-9796-2585Shuang-Nan Zhang8https://orcid.org/0000-0001-5586-1017Shu Zhang9Li-Ming Song10https://orcid.org/0000-0003-0274-3396Shu-Mei Jia11https://orcid.org/0000-0002-5203-8321Xiang Ma12https://orcid.org/0000-0002-2032-2440Lian Tao13https://orcid.org/0000-0002-2705-4338Ming-Yu Ge14https://orcid.org/0000-0002-3776-4536Qing-Zhong Liu15Jing-Zhi Yan16Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.de; University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100049, People's Republic of ChinaInstitut für Astronomie und Astrophysik , Kepler Center for Astro and Particle Physics, Eberhard Karls Universität, D-72076 Tübingen, GermanyKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.de; University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100049, People's Republic of ChinaKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.de; University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100049, People's Republic of ChinaKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.deKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.deResearch Center for Intelligent Computing Platforms , Zhejiang Laboratory, Hangzhou 311100, People's Republic of ChinaKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.deKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.de; University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100049, People's Republic of ChinaKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.deKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.de; University of Chinese Academy of Sciences, Chinese Academy of Sciences , Beijing 100049, People's Republic of ChinaKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.deKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.deKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.deKey Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences , 19B Yuquan Road, Beijing 100049, People's Republic of China ; bu@astro.uni-tuebingen.dePurple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210008, People's Republic of ChinaPurple Mountain Observatory, Chinese Academy of Sciences , Nanjing 210008, People's Republic of ChinaWe present a time-frequency analysis, based on the Hilbert–Huang transform, of the evolution of the low-frequency quasiperiodic oscillations observed in the black hole X-ray binary MAXI J1820+070. Through the empirical mode decomposition method, we decompose the light curve of the quasiperiodic oscillation (QPO) component and measure its intrinsic phase lag between photons from different energy bands. We find that the QPO phase lag is negative (low-energy photons lag behind high-energy photons); meanwhile, the absolute value of the lag increases with energy. By applying the Hilbert transform to the light curve of the QPO, we further extract the instantaneous frequency and amplitude of the QPO. Comparing these results with those from the Fourier analysis, we find that the broadening of the QPO peak is mainly caused by frequency modulation. Through further analysis, we find that these modulations could share a common physical origin with the broadband noise, and can be well explained by the internal shock model of the jet.https://doi.org/10.3847/1538-4357/acd756Black hole physicsX-ray binary starsAccretion |
| spellingShingle | Wei Yu Qing-Cui Bu Zi-Xu Yang He-Xin Liu Liang Zhang Yue Huang Deng-Ke Zhou Jin-Lu Qu Shuang-Nan Zhang Shu Zhang Li-Ming Song Shu-Mei Jia Xiang Ma Lian Tao Ming-Yu Ge Qing-Zhong Liu Jing-Zhi Yan Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070 The Astrophysical Journal Black hole physics X-ray binary stars Accretion |
| title | Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070 |
| title_full | Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070 |
| title_fullStr | Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070 |
| title_full_unstemmed | Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070 |
| title_short | Hilbert–Huang Transform Analysis of Quasiperiodic Oscillations in MAXI J1820+070 |
| title_sort | hilbert huang transform analysis of quasiperiodic oscillations in maxi j1820 070 |
| topic | Black hole physics X-ray binary stars Accretion |
| url | https://doi.org/10.3847/1538-4357/acd756 |
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