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IXPE Observation of the New Magnetar Source EP J223759.5+531421

  • Authors: Roberto Taverna, Lorenzo Marra, Roberto Turolla, Ruth M. E. Kelly, Silvia Zane, Alice Borghese, Francesco Coti Zelati, Paolo Esposito, Gian Luca Israel, Nanda Rea, Haonan Yang, Yilong Wang

Roberto Taverna et al 2026 The Astrophysical Journal Letters 1011 .

  • Provider: AAS Journals

Caption: Figure 1.

Phase-integrated count spectra (dots with 1σ error bars) collected by IXPE DU 1 (yellow), 2 (red), and 3 (green), and by EP-FXT (gray), fitted with a two-blackbody model (left panel) and a blackbody+PL model (right panel). The background for each detector and the single model components are also shown by dashed and dotted histograms, respectively. Fit residuals for the two fits are also reported in the bottom panels. The best-fit parameters are listed in Table 1.

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