Timing analysis of the black hole candidate EXO 1846-031 with Insight-HXMT monitoring
Creators: name: Liu, He-Xin
name: Huang, Yue
name: Xiao, Guang-Cheng
name: Bu, Qing-Cui
name: Qu, Jin-Lu
name: Zhang, Shu
name: Zhang, Shuang-Nan
name: Jia, Shu-Mei
name: Lu, Fang-Jun
name: Ma, Xiang
name: Tao, Lian
name: Zhang, Wei
name: Chen, Li
name: Song, Li-Ming
name: Li, Ti-Pei
name: Xu, Yu-Peng
name: Cao, Xue-Lei
name: Chen, Yong
name: Liu, Cong-Zhan
name: Cai, Ce
name: Chang, Zhi
name: Chen, Gang
name: Chen, Tian-Xiang
name: Chen, Yi-Bao
name: Chen, Yu-Peng
name: Cui, Wei
name: Cui, Wei-Wei
name: Deng, Jing-Kang
name: Dong, Yong-Wei
name: Du, Yuan-Yuan
name: Fu, Min-Xue
name: Gao, Guan-Hua
name: Gao, He
name: Gao, Min
name: Ge, Ming-Yu
name: Gu, Yu-Dong
name: Guan, Ju
name: Guo, Cheng-Cheng
name: Han, Da-Wei
name: Huo, Jia
name: Jiang, Lu-Hua
name: Jiang, Wei-Chun
name: Jin, Jing
name: Jin, Yong-Jie
name: Kong, Ling-Da
name: Li, Bing
name: Li, Cheng-Kui
name: Li, Gang
name: Li, Mao-Shun
name: Li, Wei
name: Li, Xian
name: Li, Xiao-Bo
name: Li, Xu-Fang
name: Li, Yang-Guo
name: Li, Zheng-Wei
name: Liang, Xiao-Hua
name: Liao, Jing-Yuan
name: Liu, Bai-Sheng
name: Liu, Guo-Qing
name: Liu, Hong-Wei
name: Liu, Xiao-Jing
name: Liu, Yi-Nong
name: Lu, Bo
name: Lu, Xue-Feng
name: Luo, Qi
name: Luo, Tao
name: Meng, Bin
name: Nang, Yi
name: Nie, Jian-Yin
name: Ou, Ge
name: Sai, Na
name: Shang, Ren-Cheng
name: Song, Xin-Ying
name: Sun, Liang
name: Tan, Ying
name: Tuo, You-Li
name: Wang, Chen
name: Wang, Guo-Feng
name: Wang, Juan
name: Wang, Ling-Jun
name: Wang, Weng-Shuai
name: Wang, Yu-Sa.
name: Wen, Xiang-Yang
name: Wu, Bai-Yang
name: Wu, Bo-Bing
name: Wu, Mei
name: Xiao, Shuo
name: Xiong, Shao-Lin
name: Xu, He
name: Yang, Jia-Wei
name: Yang, Sheng
name: Yang, Yan-Ji
name: Yang, Yi-Jung
name: Yi, Qi-Bin
name: Yin, Qian-Qing
name: You, Yuan
name: Zhang, Ai-Mei
name: Zhang, Cheng-Mo
name: Zhang, Fan
name: Zhang, Hong-Mei
name: Zhang, Juan
name: Zhang, Tong
name: Zhang, Wan-Chang
name: Zhang, Wen-Zhao
name: Yi-Zhang
name: Zhang, Yi-Fei
name: Zhang, Yong-Jie
name: Zhang, Yuan-Hang
name: Zhang, Yue
name: Zhang, Zhao
name: Zhang, Zhi
name: Zhang, Zi-Liang
name: Zhao, Hai-Sheng
name: Zhao, Xiao-Fan
name: Zheng, Shi-Jie
name: Zheng, Yao-Guang
name: Zhou, Deng-Ke
name: Zhou, Jian-Feng
name: Zhu, Yu-Xuan
name: Zhuang, Ren-Lin
name: Zhu, Yue
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present the observational results from a detailed timing analysis of the black hole candidate EXO 1846-031 during its outburst in 2019 with the observations of Insight-HXMT, NICER and MAXI. This outburst can be classfied roughly into four different states. Type-C quasi-periodic oscillations (QPOs) observed by NICER (about 0.1-6Hz) and Insight-HXMT (about 0.7-8Hz) are also reported in this work. Meanwhile, we study various physical quantities related to QPO frequency.The QPO rms-frequency relationship in three energy band 1-10 keV indicates that there is a turning pointing in frequency around 2 Hz,which is similar to that of GRS 1915+105. A possible hypothesis for the relationship above may be related to the inclination of the source, which may require a high inclination to explain it. The relationships between QPO frequency and QPO rms,hardness,total fractional rms and count rate have also been found in other transient sources, which can indicate that the origin of type-C QPOs is non-thermal.