Figure 3 from The NuSTAR Extragalactic Surveys: X-Ray Spectroscopic Analysis of the Bright Hard-band Selected Sample

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The NuSTAR Extragalactic Surveys: X-Ray Spectroscopic Analysis of the Bright Hard-band Selected Sample

Authors: L. Zappacosta, A. Comastri, F. Civano, S. Puccetti, F. Fiore, J. Aird, A. Del Moro, G. B. Lansbury, G. Lanzuisi, A. Goulding, J. R. Mullaney, D. Stern, M. Ajello, D. M. Alexander, D. R. Ballantyne, F. E. Bauer, W. N. Brandt, C.-T. J. Chen, D. Farrah, F. A. Harrison, P. Gandhi, L. Lanz, A. Masini, S. Marchesi, C. Ricci, and E. Treister

2018 The Astrophysical Journal 854 33.

Provider: AAS Journals

Caption: Figure 3.

Left panel: 3–24 keV net counts vs. photon index for the NuSTAR-only joint fit derived using a power-law model (black dots). Right panels (from top to bottom): black, red, and blue histograms report the distribution for the power-law, absorbed power-law, and power-law plus reflection component models, respectively. Gray regions represent the canonical range of Γ values measured in the literature for the power-law component. The dotted line represents the 3–15 keV slope of the CXB as measured by HEAO-1 (Marshall et al. 1980).

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