Monte Carlo Simulations on Possible Collimation Effects of Outflows to Fan Beam Emission of Ultraluminous Accreting X-Ray Pulsars
文献类型:期刊论文
作者 | Hou X(侯贤)1,2; You, Y.3,4; Ji, L.5; Soria, R.4,6; Zhang, S. N.3,4; Ge, M. Y.3; Tao, L.3; Zhang, S.3; Feng, H.7; Zhou M(周明)1,2 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2022-12-01 |
卷号 | 941期号:2 |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/aca2a3 |
产权排序 | 第1完成单位 |
文献子类 | Article |
英文摘要 | Pulsating ultraluminous X-ray sources (PULXs) are accreting pulsars with apparent X-ray luminosity exceeding 10(39) erg s(-1). We perform Monte Carlo simulations to investigate whether a high collimation effect (or strong beaming effect) is dominant in the presence of accretion outflows, for the fan beam emission of the accretion column of the neutron stars in PULXs. We show that the three nearby PULXs (RX J0209.6-7427, Swift J0243.6+6124, and SMC X-3), namely, the Three Musketeers here, have their main pulsed emission not strongly collimated even if strong outflows exist. This conclusion can be extended to the current sample of extragalactic PULXs, if accretion outflows are commonly produced from them. This means that the observed high luminosity of PULXs is indeed intrinsic, which can be used to infer the existence of very strong surface magnetic fields of similar to 10(13-14) G, possibly multipole fields. However, if strong outflows are launched from the accretion disks in PULXs as a consequence of disk spherization by radiation pressure, regular dipole magnetic fields of similar to 10(12) G may be required, comparable to that of the Three Musketeers, which have experienced large luminosity changes from well below their Eddington limit (2 x 10(38) erg s(-1) for an NS) to super-Eddington and whose maximum luminosity fills the luminosity gap between Galactic pulsars and extragalactic PULXs. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 射电天文学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | SUPER-EDDINGTON ACCRETION ; SMALL-MAGELLANIC-CLOUD ; MAGNETIZED NEUTRON-STARS ; XMM-NEWTON OBSERVATIONS ; CYCLOTRON LINE ENERGY ; BINARY PULSAR ; LUMINOSITY DEPENDENCE ; NUSTAR J095551+6940.8 ; SWIFT OBSERVATIONS ; SPECTRAL FEATURES |
资助项目 | Ministry of Science and Technology of China (MOST)[2021YFA0718500] ; International Partnership Program of Chinese Academy of Sciences[113111KYSB20190020] ; National Natural Science Foundation of China[U1938103] ; National Natural Science Foundation of China[12041303] ; National Natural Science Foundation of China[U1938109] ; National Natural Science Foundation of China[U1838202] ; National Natural Science Foundation of China[U1838201] ; National Natural Science Foundation of China[U1838115] ; National Natural Science Foundation of China[U1838104] ; National Natural Science Foundation of China[12073029] ; National Natural Science Foundation of China[U1838107] ; National Natural Science Foundation of China[U1938201] ; National Natural Science Foundation of China[U2038101] ; National Natural Science Foundation of China[12173103] ; Light of West China Program of the CAS ; Guangdong Major Project of Basic and Applied Basic Research[2019B030302001] |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP Publishing Ltd |
WOS记录号 | WOS:000899403300001 |
资助机构 | Ministry of Science and Technology of China (MOST)[2021YFA0718500] ; International Partnership Program of Chinese Academy of Sciences[113111KYSB20190020] ; National Natural Science Foundation of China[U1938103, 12041303, U1938109, U1838202, U1838201, U1838115, U1838104, 12073029, U1838107, U1938201, U2038101, 12173103] ; Light of West China Program of the CAS ; Guangdong Major Project of Basic and Applied Basic Research[2019B030302001] |
版本 | 出版稿 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25711] |
专题 | 星系类星体研究组 云南天文台_高能天体物理研究组 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 | Hou X(侯贤) |
作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; xhou@ynao.ac.cn; 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, People's Republic of China; 3.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China youyuan@ihep.ac.cn, zhangsn@ihep.ac.cn; 4.University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, People's Republic of China; 5.School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai 519082, People's Republic of China; 6.Sydney Institute for Astronomy, School of Physics A28, The University of Sydney, Sydney, NSW 2006, Australia; 7.Department of Astronomy, Tsinghua University, Beijing 100084, People's Republic of China |
推荐引用方式 GB/T 7714 | Hou X,You, Y.,Ji, L.,et al. Monte Carlo Simulations on Possible Collimation Effects of Outflows to Fan Beam Emission of Ultraluminous Accreting X-Ray Pulsars[J]. ASTROPHYSICAL JOURNAL,2022,941(2). |
APA | Hou X.,You, Y..,Ji, L..,Soria, R..,Zhang, S. N..,...&Wang JC.(2022).Monte Carlo Simulations on Possible Collimation Effects of Outflows to Fan Beam Emission of Ultraluminous Accreting X-Ray Pulsars.ASTROPHYSICAL JOURNAL,941(2). |
MLA | Hou X,et al."Monte Carlo Simulations on Possible Collimation Effects of Outflows to Fan Beam Emission of Ultraluminous Accreting X-Ray Pulsars".ASTROPHYSICAL JOURNAL 941.2(2022). |
入库方式: OAI收割
来源:云南天文台
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