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Table 2
Ne K optical depth and equivalent hydrogen column NH = NNe/8.71 × 10-5 from local fits during persistent emission and dipping.
| State | Date (Obsid) | τNe | NNe | NH |
| (1017 cm-2) | (1021 cm-2) | |||
|
|
||||
| All | 1999 Sep. 23 (1102) | 0.087 ± 0.023 | 2.41 ± 0.63 | 2.77 ± 0.72 |
| All | 2001 Aug. 12 (1016) | 0.128 ± 0.025 | 3.52 ± 0.69 | 4.04 ± 0.80 |
| All | 2007 Aug. 23, 25 | 0.091 ± 0.004 | 2.50 ± 0.10 | 2.87 ± 0.11 |
| Non-Dip | (8170+8599) | 0.083 ± 0.019 | 2.27 ± 0.53 | 2.61 ± 0.61 |
| Deep dip | 0.084 ± 0.013 | 2.32 ± 0.36 | 2.67 ± 0.42 | |
| All | present obs | 0.096 ± 0.009 | 2.64 ± 0.26 | 3.03 ± 0.30 |
| Non-Dip | 2009 May 12 | 0.108 ± 0.030 | 2.96 ± 0.83 | 3.40 ± 0.96 |
| Deep dip | (10881) | 0.097 ± 0.025 | 2.68 ± 0.69 | 3.08 ± 0.79 |
Notes. All means all integrated data, non-dip depicts flat and dip-free parts of the persistent emission, and deep dip the parts at the bottom of dips.
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