气候变化领域集成服务门户(CCPortal): X-Ray Characterization of the Pulsar PSR J1849-0001 and Its Wind Nebula G32.64+0.53 Associated with TeV Sources Detected by HESS, HAWC, Tibet ASγ, and LHAASO

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DOI	10.3847/1538-4357/ad0ecd
	X-Ray Characterization of the Pulsar PSR J1849-0001 and Its Wind Nebula G32.64+0.53 Associated with TeV Sources Detected by HESS, HAWC, Tibet ASγ, and LHAASO
	Kim, Chanho; Park, Jaegeun; Woo, Jooyun; Silverman, Sarah; An, Hongjun; Bamba, Aya; Mori, Kaya; Reynolds, Stephen P.; Safi-Harb, Samar
发表日期	2024
ISSN	0004-637X
EISSN	1538-4357
卷号	960 期号:1
英文摘要	We report on the X-ray emission properties of the pulsar PSR J1849-0001 and its wind nebula (PWN), as measured by Chandra, XMM-Newton, NICER, Swift, and NuSTAR. In the X-ray data, we detected the 38 ms pulsations of the pulsar up to similar to 60 keV with high significance. Additionally, we found that the pulsar's on-pulse spectral energy distribution displays significant curvature, peaking at approximate to 60 keV. Comparing the phase-averaged and on-pulse spectra of the pulsar, we found that the pulsar's off-pulse emission exhibits a spectral shape that is very similar to its on-pulse emission. This characterization of the off-pulse emission enabled us to measure the >10 keV spectrum of the faint and extended PWN using NuSTAR's off-pulse data. We measured both the X-ray spectrum and the radial profiles of the PWN's brightness and photon index, and we combined these X-ray measurements with published TeV results. We then employed a multizone emission scenario to model the broadband data. The results of the modeling suggest that the magnetic field within the PWN is relatively low (approximate to 7 mu G) and that electrons are accelerated to energies greater than or similar to 400 TeV within this PWN. The electrons responsible for the TeV emission outside the X-ray PWN may propagate to similar to 30 pc from the pulsar in similar to 10 kyr.
英文关键词	CRAB-NEBULA; PARTICLE-ACCELERATION; NUSTAR; SPECTROSCOPY; CONSTRAINTS; TELESCOPE; EVOLUTION; EMISSION; SPECTRA; CATALOG
WOS研究方向	Astronomy & Astrophysics
WOS记录号	WOS:001133715100001
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/283584
作者单位	Chungbuk National University; Columbia University; University of Tokyo; University of Tokyo; University of Tokyo; North Carolina State University; University of Manitoba
推荐引用方式 GB/T 7714	Kim, Chanho,Park, Jaegeun,Woo, Jooyun,et al. X-Ray Characterization of the Pulsar PSR J1849-0001 and Its Wind Nebula G32.64+0.53 Associated with TeV Sources Detected by HESS, HAWC, Tibet ASγ, and LHAASO[J],2024,960(1).
APA	Kim, Chanho.,Park, Jaegeun.,Woo, Jooyun.,Silverman, Sarah.,An, Hongjun.,...&Safi-Harb, Samar.(2024).X-Ray Characterization of the Pulsar PSR J1849-0001 and Its Wind Nebula G32.64+0.53 Associated with TeV Sources Detected by HESS, HAWC, Tibet ASγ, and LHAASO.ASTROPHYSICAL JOURNAL,960(1).
MLA	Kim, Chanho,et al."X-Ray Characterization of the Pulsar PSR J1849-0001 and Its Wind Nebula G32.64+0.53 Associated with TeV Sources Detected by HESS, HAWC, Tibet ASγ, and LHAASO".ASTROPHYSICAL JOURNAL 960.1(2024).