دورية أكاديمية
The First Polarimetric View on Quasiperiodic Oscillations in a Black Hole X-Ray Binary
| العنوان: | The First Polarimetric View on Quasiperiodic Oscillations in a Black Hole X-Ray Binary |
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| المؤلفون: | Qing-Chang Zhao, Lian Tao, Han-Cheng Li, Shuang-Nan Zhang, Hua Feng, Ming-Yu Ge, Long Ji, Ya-Nan Wang, Yue Huang, Xiang Ma, Liang Zhang, Jin-Lu Qu, Yan-Jun Xu, Shu Zhang, Qian-Qing Yin, Qing-Cang Shui, Rui-Can Ma, Shu-Jie Zhao, Pan-Ping Li, Zi-Xu Yang, He-Xin Liu, Wei Yu |
| المصدر: | The Astrophysical Journal Letters, Vol 961, Iss 2, p L42 (2024) |
| بيانات النشر: | IOP Publishing, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Astrophysics |
| مصطلحات موضوعية: | Low-mass x-ray binary stars, Accretion, Polarimetry, Astrophysics, QB460-466 |
| الوصف: | We present the first polarimetric analysis of quasiperiodic oscillations (QPOs) in a black hole binary utilizing IXPE data. Our study focuses on Swift J1727.8–1613, which experienced a massive outburst that was observed by various telescopes across different wavelengths. The IXPE observation we studied was conducted during the hard-intermediate state. The polarization degree (PD) and polarization angle (PA) were measured at 4.28% ± 0.20% and 1.°9 ± 1.°4, respectively. Remarkably, significant QPO signals were detected during this observation, with a QPO frequency of approximately 1.34 Hz and a fractional rms amplitude of about 12.3%. Furthermore, we conducted a phase-resolved analysis of the QPO using the Hilbert–Huang transform technique. The photon index showed a strong modulation with respect to the QPO phase. In contrast, the PD and PA exhibit no modulations in relation to the QPO phase, which is inconsistent with the expectation of the Lense–Thirring precession of the inner flow. Further theoretical studies are needed to conform with the observational results. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2041-8213 2041-8205 |
| Relation: | https://doaj.org/toc/2041-8205 |
| DOI: | 10.3847/2041-8213/ad1e6c |
| URL الوصول: | https://doaj.org/article/9d87a28bf5a6441e92194350a0e03bee |
| رقم الأكسشن: | edsdoj.9d87a28bf5a6441e92194350a0e03bee |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20418213 20418205 |
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| DOI: | 10.3847/2041-8213/ad1e6c |