LHAASO J2226+6057 as a pulsar wind nebula
文献类型:期刊论文
作者 | De Sarkar, Agnibha1,2; Zhang, Wei2,4; Martín, Jonatan3; Torres, Diego F.2,4,5; Li, Jian6,7; Hou X(侯贤)8,9 |
刊名 | Astronomy and Astrophysics |
出版日期 | 2022-12-01 |
卷号 | 668 |
ISSN号 | 0004-6361 |
关键词 | radiation mechanisms: non thermal pulsars: general gamma rays: general |
DOI | 10.1051/0004-6361/202244841 |
产权排序 | 第8完成单位 |
文献子类 | Journal article (JA) |
英文摘要 | Context. The Large High Altitude Air Shower Observatory has reported the detection of cosmicray sources in the Milky Way that can accelerate particles up to PeV (=1015 eV) energies. These sources, so-called PeVatrons, are mostly unidentified. Several classes of sources, such as supernova remnants, pulsar wind nebula, or young stellar clusters can potentially be the counterparts of these PeVatrons. Aims. The aim of this work is to study a pulsar wind nebula interpretation of one of these PeVatrons, LHAASO J2226+6057, which has a relatively well covered multifrequency spectrum. Methods. We have performed a leptonic, time-dependent modeling of the pulsar wind nebula (PWN) associated with PSR J2229+6114 considering a time-energy-dependent diffusion-loss equation. Injection, energy losses, as well as the escape of particles were considered to balance the time-dependent lepton population. We have also included the dynamics of the PWN and the associated supernova remnant and their interaction via the reverse shock to study the reverberation phase of the system. Results. We have considered different values of the braking index (n) and true age (tage) for the fitting of the MultiWaveLength (MWL) spectral energy distribution (SED) of LHAASO J2226+6057. The best-fit PWN model parameters and their 1 A confidence intervals have been evaluated. We have also demonstrated the impact of reverberation on the MWL SED with increasing time. Additionally, we have discussed the resultant large radius and low magnetic field associated with the PWN in question, as caveats for the possible physical connection of the pulsar as the origin of this high energy source. © De Sarkar et al. 2022. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 |
URL标识 | 查看原文 |
资助项目 | N/A |
语种 | 英语 |
出版者 | EDP Sciences |
资助机构 | N/A |
源URL | [http://ir.ynao.ac.cn/handle/114a53/25720] |
专题 | 星系类星体研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
作者单位 | 1.Raman Research Institute, Karnataka, Bengaluru, 560080, India; 2.Institute of Space Sciences (ICE, CSIC), Campus UAB, Carrer de Magrans s/n, Barcelona, 08193, Spain; 3.Inaf - Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, Firenze, 50125, Italy; 4.Institut d'Estudis Espacials de Catalunya (IEEC), Barcelona, 08034, Spain; 5.Institució Catalana de Recerca i Estudis Avanats (ICREA), Barcelona, 08010, Spain; 6.Cas Key Laboratory for Research in Galaxies and Cosmology, Department of Astronomy, University of Science and Technology of China, Anhui, Hefei, 230026, China; 7.School of Astronomy and Space Science, University of Science and Technology of China, Anhui, Hefei, 230026, China; 8.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China; 9.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650216, China |
推荐引用方式 GB/T 7714 | De Sarkar, Agnibha,Zhang, Wei,Martín, Jonatan,et al. LHAASO J2226+6057 as a pulsar wind nebula[J]. Astronomy and Astrophysics,2022,668. |
APA | De Sarkar, Agnibha,Zhang, Wei,Martín, Jonatan,Torres, Diego F.,Li, Jian,&Hou X.(2022).LHAASO J2226+6057 as a pulsar wind nebula.Astronomy and Astrophysics,668. |
MLA | De Sarkar, Agnibha,et al."LHAASO J2226+6057 as a pulsar wind nebula".Astronomy and Astrophysics 668(2022). |
入库方式: OAI收割
来源:云南天文台
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