气候变化领域集成服务门户(CCPortal): Multiband Nonthermal Radiative Study of PeVatron Candidate Pulsar Wind Nebula HESS J1849-000

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DOI	10.3847/1538-4357/ad445e
	Multiband Nonthermal Radiative Study of PeVatron Candidate Pulsar Wind Nebula HESS J1849-000
	Zhu, Bo-Tao; Lu, Fang-Wu; Zhang, Li
发表日期	2024
ISSN	0004-637X
EISSN	1538-4357
起始页码	967
结束页码	2
卷号	967 期号:2
英文摘要	Pulsar wind nebula HESS J1849-000 is one of the sources that may emit PeV gamma-ray photons based on the recent measurement by the Tibet Air Shower Array and the Large High Altitude Air Shower Observatory. We use a time-dependent model to investigate the nonthermal radiative properties of HESS J1849-000. Observed multiband data are produced well by relativistic leptons through synchrotron radiation and inverse Compton processes, and the particle transport and cooling processes are analyzed. Our results show that the particle adiabatic loss dominates over the synchrotron loss and inverse Compton losses, and the particle advection dominates over diffusion for the low-energy band. On the other hand, the particle synchrotron loss dominates over the adiabatic loss and inverse Compton losses, and the diffusion dominates over advection for the high-energy band. Furthermore, particle transport would be playing a significant role in the low-energy band, whereas the particle cooling processes may play a more important role in the high-energy band. The current diffusion coefficient 3.4 x 1026 cm2 s-1 at an electron energy of 1 TeV is derived, which implies a slow diffusion mechanism may occur within the nebula. More importantly, our model suggests that the particle's maximum energy is 3.6 PeV, which makes HESS J1849-000 a PeVatron candidate.
语种	英语
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
WOS记录号	WOS:001233346300001
来源期刊	ASTROPHYSICAL JOURNAL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296316
作者单位	Yunnan Agricultural University; Yuxi Normal University; Yunnan University
推荐引用方式 GB/T 7714	Zhu, Bo-Tao,Lu, Fang-Wu,Zhang, Li. Multiband Nonthermal Radiative Study of PeVatron Candidate Pulsar Wind Nebula HESS J1849-000[J],2024,967(2).
APA	Zhu, Bo-Tao,Lu, Fang-Wu,&Zhang, Li.(2024).Multiband Nonthermal Radiative Study of PeVatron Candidate Pulsar Wind Nebula HESS J1849-000.ASTROPHYSICAL JOURNAL,967(2).
MLA	Zhu, Bo-Tao,et al."Multiband Nonthermal Radiative Study of PeVatron Candidate Pulsar Wind Nebula HESS J1849-000".ASTROPHYSICAL JOURNAL 967.2(2024).