Polarization Study of Swift J151857.0–572147 with IXPE Observation  

作　　者：Yu-Shan Ling Fei Xie Ming-Yu Ge Fabio La Monaca 

机构地区：[1]Guangxi Key Laboratory for Relativistic Astrophysics,School of Physical Science and Technology,Guangxi University,Nanning 530004,China [2]Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [3]INAF Istituto di Astrofisica e Planetologia Spaziali,Via del Fosso del Cavaliere 100,00133 Roma,Italy [4]Dipartimento di Fisica,Universitàdegli Studi di Roma“Tor Vergata”,Via della Ricerca Scientifica 1,00133 Roma,Italy [5]Dipartimento di Fisica,Universitàdegli Studi di Roma“La Sapienza”,Piazzale Aldo Moro 5,00185 Roma,Italy

出　　处：《Research in Astronomy and Astrophysics》2024年第9期60-65,共6页天文和天体物理学研究（英文版）

基　　金：supported by the National Key R&D Program of China(grant No.2023YFE0117200);the National Natural Science Foundation of China(NSFC,grant Nos.12373041 and 12373051);special funding for Guangxi distinguished professors(Bagui Xuezhe);the Guangxi Talent Program(Highland of Innovation Talents)。

摘　　要：We present an analysis of the Imaging X-ray Polarimetry Explorer observation from a newly discovered transient source:Swift J151857.0-572147.The obtained polarization degree(PD)and angle are 0.3%±0.3% and -24°±26°respectively in 2-8 keV within 68%confidence level errors,and polarization results are below MDP99in all energy bins,with the upper limit on PD of 0.8% in the 2-8 keV energy range.No quasi-periodic oscillations(QPOs)are detected in this observation.The polarization and QPO analyses support the hypothesis that the source was in the high soft state,and the results are consistent with predictions for a thin accretion disk model.

关 键 词：stars:black holes POLARIZATION X-rays:bursts 

分 类 号：P172.2[天文地球—天文学] P145.8