Fig. 9 from The Chandra Deep Field–South: Optical Spectroscopy. I.

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The Chandra Deep Field–South: Optical Spectroscopy. I.

Authors: G. P. Szokoly, J. Bergeron, G. Hasinger, I. Lehmann, L. Kewley, V. Mainieri, M. Nonino, P. Rosati, R. Giacconi, R. Gilli, R. Gilmozzi, C. Norman, M. Romaniello, E. Schreier, P. Tozzi, J. X. Wang, W. Zheng, and A. Zirm

Szokoly et al. 2004 The Astrophysical Journal Supplement Series 155 271.

Provider: AAS Journals

Caption: Fig. 9.

Hardness ratio vs. observed X‐ray luminosity in the 0.5–10 keV band. Symbols in the left panel show the classical optical classification (open squares, BLAGN; filled squares, HEX; diamonds, LEX; triangles, ABS). Symbols in the right panel are as in see Fig. 2 and follow the X‐ray classification presented in § 7. The BAL QSO (XID 62) is also marked.

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