An atypical low-frequency QPO detected in the hard state of MAXI J1348-630 with $Insight$-HXMT
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866913398035316736 |
|---|---|
| author | Wang, Xin-Lei Yan, Zhen Xie, Fu-Guo Wang, Jun-Feng Ma, Ren-Yi |
| author_facet | Wang, Xin-Lei Yan, Zhen Xie, Fu-Guo Wang, Jun-Feng Ma, Ren-Yi |
| contents | 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 $σ$, 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_12477 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | An atypical low-frequency QPO detected in the hard state of MAXI J1348-630 with $Insight$-HXMT Wang, Xin-Lei Yan, Zhen Xie, Fu-Guo Wang, Jun-Feng Ma, Ren-Yi High Energy Astrophysical Phenomena 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 $σ$, 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. |
| title | An atypical low-frequency QPO detected in the hard state of MAXI J1348-630 with $Insight$-HXMT |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2406.12477 |