Discovery of X-ray pulsation from the geminga-like pulsar psr J2021+4026

L. C.C. Lin, C. Y. Hui, C. P. Hu, J. H.K. Wu, R. H.H. Huang, L. Trepl, J. Takata, K. A. Seo, Y. Wang, Y. Chou, K. S. Cheng

研究成果: 雜誌貢獻期刊論文同行評審

26 引文 斯高帕斯(Scopus)


We report the discovery of an X-ray periodicity of 265.3 ms from a deep XMM-Newton observation of the radio-quiet γ-ray pulsar, PSR J2021+4026, located at the edge of the supernova remnant G78.2+2.1 (γ-Cygni). The detected frequency is consistent with the γ-ray pulsation determined by the observation of the Fermi Gamma-ray Space Telescope at the same epoch. The X-ray pulse profile resembles the modulation of a hot spot on the surface of the neutron star. The phase-averaged spectral analysis also suggests that the majority of the observed X-rays have thermal origins. This is the third member in the class of radio-quiet pulsars with significant pulsations detected from both X-ray and γ-ray regimes.

期刊Astrophysical Journal Letters
出版狀態已出版 - 10 6月 2013


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