INSIGHT-HXMT Observations of the New Black Hole Candidate MAXI J1535-571: Timing Analysis

Huang, Y.; Qu, J.; Zhang, S.; Bu, Q.; Chen, Y.; Tao, L.; Zhang, S.; Lu, F.; Li, T.; Song, L.; Xu, Y.; Cao, X.; Chen, Y.; Liu, C.; Chang, H.; Yu, W.; Weng, S.; Hou, X.; Kong, A.; Xie, F.; Zhang, G.; Zhou, J.; Chang, Z.; Chen, G.; Chen, L.; Chen, T.; Chen, Y.; Cui, W.; Cui, W.; Deng, J.; Dong, Y.; Du, Y.; Fu, M.; Gao, G.; Gao, H.; Gao, M.; Ge, M.; Gu, Y.; Guan, J.; Gungor, Can; Guo, C.; Han, D.; Hu, W.; Huo, J.; Ji, J.; Jia, S.; Jiang, L.; Jiang, W.; Jin, J.; Jin, Y.; Li, B.; Li, C.; Li, G.; Li, M.; Li, W.; Li, X.; Li, X.; Li, X.; Li, Y.; Li, Z.; Li, Z.; Liang, X.; Liao, J.; Liu, G.; Liu, H.; Liu, S.; Liu, X.; Liu, Y.; Liu, Y.; Lu, B.; Lu, X.; Luo, T.; Ma, X.; Meng, B.; Nang, Y.; Nie, J.; Ou, G.; Sai, N.; Shang, R.; Sun, L.; Tan, Y.; Tao, W.; Tuo, Y.; Wang, G.; Wang, H.; Wang, J.; Wang, W.; Wang, Y.; Wen, X.; Wu, B.; Wu, M.; Xiao, G.; Xiong, S.; Xu, H.; Yan, L.; Yang, J.; Yang, S.; Yang, Y.; Zhang, A.; Zhang, C.; Zhang, C.; Zhang, F.; Zhang, H.; Zhang, J.; Zhang, Q.; Zhang, T.; Zhang, W.; Zhang, W.; Zhang, W.; Zhang, Y.; Zhang, Y.; Zhang, Y.; Zhang, Y.; Zhang, Z.; Zhang, Z.; Zhang, Z.; Zhao, H.; Zhao, J.; Zhao, X.; Zheng, S.; Zhu, Y.; Zhu, Y.; Zou, C.

doi:10.3847/1538-4357/aade4c

INSIGHT-HXMT Observations of the New Black Hole Candidate MAXI J1535-571: Timing Analysis

Atıf İçin Kopyala

Huang Y., Qu J. L., Zhang S. N., Bu Q. C., Chen Y. P., Tao L., ...Daha Fazla

ASTROPHYSICAL JOURNAL, cilt.866, sa.2, 2018 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 866 Sayı: 2
Basım Tarihi: 2018
Doi Numarası: 10.3847/1538-4357/aade4c
Dergi Adı: ASTROPHYSICAL JOURNAL
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
İstanbul Üniversitesi Adresli: Hayır

Özet

We present X-ray timing results of the new black hole candidate MAXI J1535-571 during its 2017 outburst from Hard X-ray Modulation Telescope (Insight-HXMT) observations taken from 2017 September 6 to 23. Following the definitions given by Belloni, we find that the source exhibits transitions from the low/hard state to the hard intermediate state, and eventually to the soft intermediate state. Quasi-periodic oscillations (QPOs) are found in the intermediate states, which suggest different types of QPOs. With the large effective area of Insight-HXMT at high energies, we are able to present the energy dependence of the QPO amplitude and centroid frequency up to 100 keV, which has rarely been explored by previous satellites. We also find that the phase lag at the type-C QPOs centroid frequency is negative (soft lag) and strongly correlated with the centroid frequency. Assuming a geometrical origin of type-C QPOs, the source is consistent with being a high-inclination system.