Fig. 2 from The 172 ks Chandra Exposure of the LALA Bootes Field: X‐Ray Source Catalog

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The 172 ks Chandra Exposure of the LALA Bootes Field: X‐Ray Source Catalog

Authors: J. X. Wang, S. Malhotra, J. E. Rhoads, M. J. I. Brown, A. Dey, T. M. Heckman, B. T. Jannuzi, C. A. Norman, G. P. Tiede, and P. Tozzi

Wang et al. 2004 The Astronomical Journal 127 213.

Provider: AAS Journals

Caption: Fig. 2.

Hardness ratios HR = (H − S)/(H + S) (left ordinate axis) of X‐ray sources vs. their full‐band (0.5–10.0 keV) X‐ray fluxes. The photon indices Γ of the power‐law spectra that could reproduce the observed hardness ratios are given along the right ordinate (see text for details). The dotted line connects the averaged hardness ratios for detected sources within different flux bins.

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