FERMI STUDY OF γ-RAY MILLISECOND PULSARS: THE SPECTRAL SHAPE AND PULSED EMISSION FROM J0614–3329 UP TO 60 GeV

doi:10.3847/0004-637X/831/2/143

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	FERMI STUDY OF γ-RAY MILLISECOND PULSARS: THE SPECTRAL SHAPE AND PULSED EMISSION FROM J0614–3329 UP TO 60 GeV
	Xing,Yi; Wang,Zhongxiang
刊名	The Astrophysical Journal
	2016-11-03
卷号	831 期号:2
关键词	gamma rays: stars pulsars: general pulsars: individual (PSR J0614–3329)
ISSN号	0004-637X
DOI	10.3847/0004-637X/831/2/143
英文摘要	ABSTRACT We report our analysis of the Fermi Large Area Telescope data for 39 millisecond pulsars (MSPs) listed in the second γ-ray pulsar catalog. Spectra of the pulsars are obtained. We fit the spectra with a function of a power law with exponential cutoff, and find the best-fit parameters of photon index and cutoff energy GeV. This spectral shape, which includes the intrinsic differences in the spectra of the MSPs, can be used for finding candidate MSPs and unidentified types of sources detected by Fermi at high Galactic latitudes. In one of the MSPs, PSR J0614?3329, we find significant pulsed emission up to 60 GeV. The result has thus added this MSP to the group of pulsars that have been detected with pulsed emission at?energies of tens of GeV. Comparing the γ-ray spectrum of PSR?J0614?3329 with those of the Crab and Vela pulsars, we discuss possible emission mechanisms for the very high-energy component.
语种	英语
出版者	The American Astronomical Society
WOS记录号	IOP:0004-637X-831-2-143
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/32169]
专题	中国科学院上海天文台
作者单位	Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, China
推荐引用方式 GB/T 7714	Xing,Yi,Wang,Zhongxiang. FERMI STUDY OF γ-RAY MILLISECOND PULSARS: THE SPECTRAL SHAPE AND PULSED EMISSION FROM J0614–3329 UP TO 60 GeV[J]. The Astrophysical Journal,2016,831(2).
APA	Xing,Yi,&Wang,Zhongxiang.(2016).FERMI STUDY OF γ-RAY MILLISECOND PULSARS: THE SPECTRAL SHAPE AND PULSED EMISSION FROM J0614–3329 UP TO 60 GeV.The Astrophysical Journal,831(2).
MLA	Xing,Yi,et al."FERMI STUDY OF γ-RAY MILLISECOND PULSARS: THE SPECTRAL SHAPE AND PULSED EMISSION FROM J0614–3329 UP TO 60 GeV".The Astrophysical Journal 831.2(2016).