Optical and X-Ray Observations of MAXI J1820+070 During the Early Outburst Phase in 2018: Zooming in the Low Frequency QPOs*
文献类型:期刊论文
作者 | Mao, Dong-Ming4,5; Yu, Wen-Fei5; Zhang JJ(张居甲)3,6![]() ![]() |
刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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出版日期 | 2022-04-01 |
卷号 | 22期号:4 |
关键词 | X-ray stars Low mass binary stars X-ray transient sources |
ISSN号 | 1674-4527 |
DOI | 10.1088/1674-4527/ac538a |
产权排序 | 第3完成单位 |
文献子类 | Article |
英文摘要 | We report a further investigation of the optical low frequency quasi periodic oscillations (LF QPOs) detected in the black hole transient MAXI J1820+070 in the 2018 observations with the YFOSC mounted on Lijiang 2.4 m telescope (LJT). In addition, we make use of the Insight-HXMT/HE observations to measure the properties of the quasi-simultaneous X-ray LF QPOs of MAXI J1820+070 on the same day. We compared the centroid frequency, the full width at half maximum (FWHM) and the fractional rms of the LF QPOs in both wavelength ranges. We found that the centroid frequency of the optical QPO is at a frequency of 51.58 mHz, which is consistent with that of the X-ray LF QPO detected on the same day within 1 mHz. We also found that the FWHM of the optical LF QPO is significantly smaller than that of the X-ray LF QPO, indicating that the optical QPO has a higher coherence. The quasi-simultaneous optical and the X-ray LF QPO at a centroid frequency of about 52 mHz suggests that the actual mechanisms of these LF QPOs as the Lense-Thirring precession should work in the vicinity of a radius of about 80-117 gravitational radii (R ( g ) = GM/c (2), M is the mass of the black hole) from the black hole if the QPO frequency is related to a proxy of the orbital frequency in the accretion flow as the Lense-Thirring precession model suggests. Furthermore, the apparent higher coherence of the optical QPO favors that it is a more original signal as compared with the X-ray QPO. |
学科主题 | 天文学 ; 恒星与银河系 |
URL标识 | 查看原文 |
出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA |
WOS关键词 | QUASI-PERIODIC OSCILLATIONS ; ACCRETION-EJECTION INSTABILITY ; BLACK-HOLE BINARIES ; CYGNUS X-1 ; LIGHT CURVES ; VARIABILITY ; SPECTRUM ; MODEL |
资助项目 | National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[U1838203] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[11333005] ; National Program on Key Research and Development Project[2016YFA0400804] ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences ; People's Government of Yunnan Province ; China National Space Administration ; CASChinese Academy of Sciences ; NSFCNational Natural Science Foundation of China (NSFC)[12173082] ; NSFCNational Natural Science Foundation of China (NSFC)[11773067] ; NSFCNational Natural Science Foundation of China (NSFC)[11773055] ; NSFCNational Natural Science Foundation of China (NSFC)[U1938114] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents ; Scholar Program of Beijing Academy of Science and Technology[DZ:BS202002] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
WOS记录号 | WOS:000771739300001 |
出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
资助机构 | National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC)[U1838203, 11333005] ; National Program on Key Research and Development Project[2016YFA0400804] ; Chinese Academy of Sciences (CAS)Chinese Academy of Sciences ; People's Government of Yunnan Province ; China National Space Administration ; CASChinese Academy of Sciences ; NSFCNational Natural Science Foundation of China (NSFC)[12173082, 11773067, 11773055, U1938114] ; Youth Innovation Promotion Association of the CAS[2018081] ; Ten Thousand Talents Program of Yunnan for Top-notch Young Talents ; Scholar Program of Beijing Academy of Science and Technology[DZ:BS202002] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/24977] ![]() |
专题 | 云南天文台_丽江天文观测站(南方基地) 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Yu, Wen-Fei |
作者单位 | 1.Physics Department, Tsinghua University, Beijing 100084, China; 2.Beijing Planetarium, Beijing Academy of Sciences and Technology, Beijing 100044, China 3.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China; 4.University of Chinese Academy of Sciences, Beijing 100049, China; 5.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China; wenfei@shao.ac.cn; 6.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, China; |
推荐引用方式 GB/T 7714 | Mao, Dong-Ming,Yu, Wen-Fei,Zhang JJ,et al. Optical and X-Ray Observations of MAXI J1820+070 During the Early Outburst Phase in 2018: Zooming in the Low Frequency QPOs*[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2022,22(4). |
APA | Mao, Dong-Ming.,Yu, Wen-Fei.,Zhang JJ.,Yan, Zhen.,Rapisarda, Stefano.,...&Bai JM.(2022).Optical and X-Ray Observations of MAXI J1820+070 During the Early Outburst Phase in 2018: Zooming in the Low Frequency QPOs*.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,22(4). |
MLA | Mao, Dong-Ming,et al."Optical and X-Ray Observations of MAXI J1820+070 During the Early Outburst Phase in 2018: Zooming in the Low Frequency QPOs*".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 22.4(2022). |
入库方式: OAI收割
来源:云南天文台
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