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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 6.

Ratios between the phase-resolved and background-subtracted XIS and HXD spectra of 4U 1626−67 and those of the Crab Nebula. The XIS source data were normalized using the canonical model of the Crab Nebula since spectra from the Crab Nebula suffer from pile-up. Phases are indicated in the same manner as Figure 5, but are offset by multiples of 10 −1. Arrows denote the upper limit.

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