Figure 5 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 5.

Intrinsic column density (left-hand y-axis) vs. photon index from the baseline modeling. Red arrows are 90% c.l. upper limits on ﹩{N}_{{\rm{H}}}﹩. The shaded gray histogram reports the distribution of Γ (right-hand y-axis). Data points without error-bars in Γ are sources for which the value of Γ was fixed to a value of 1.8 during the modeling because of poor constraints due to a combination of limited statistics and large column densities.

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