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Possible Detection of an Emission Cyclotron Resonance Scattering Feature from the Accretion-powered Pulsar 4U 1626–67

  • Authors: W. B. Iwakiri, Y. Terada, T. Mihara, L. Angelini, M. S. Tashiro, T. Enoto, S. Yamada, K. Makishima, M. Nakajima, and A. Yoshida

Iwakiri et al. 2012 The Astrophysical Journal 751 35.

  • Provider: AAS Journals

Caption: Figure 5.

Phase-resolved and background-subtracted XIS (FI: black symbols below 10 keV, BI: gray symbols) and HXD (black symbols over 10 keV) spectra of 4U 1626−67 for phases ϕ = 0.000–0.125, 0.125–0.250, 0.250–0.375, 0.375–0.500, 0.500–0.625, 0.625–0.750, 0.750–0.875, and 0.875–1.000 from top to bottom, offset by multiples of 10 −2. Arrows denote the upper limit.

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