تقرير
An atypical low-frequency QPO detected in the hard state of MAXI J1348-630 with $Insight$-HXMT
| العنوان: | An atypical low-frequency QPO detected in the hard state of MAXI J1348-630 with $Insight$-HXMT |
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| المؤلفون: | Wang, Xin-Lei, Yan, Zhen, Xie, Fu-Guo, Wang, Jun-Feng, Ma, Ren-Yi |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | Based on the $Insight$-HXMT archival data, we have detected a new atypical low-frequency quasi-periodic oscillation (LFQPO) in the black hole X-ray binary MAXI J1348$-$630. The new LFQPO is detected in all the three instruments of $Insight$-HXMT with a combined significance of 3--5 $\sigma$, covering a wide energy range of 1--100 keV. The fractional root-mean-square (RMS) seems decrease with energy. It exclusively appears in the hard state during both the main and mini outburst, spanning an X-ray intensity range by a factor of 10, and a very narrow hardness range. The frequency of this new type of LFQPO is moderately stable, in the range of 0.08--0.15 Hz. We discussed different models for the LFQPO, and found none is able to explain the observed properties of this new type of LFQPO. Comment: 20 pages, 6 figures. Accepted by ApJ |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2406.12477 |
| رقم الأكسشن: | edsarx.2406.12477 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |