Table 3.
Ratio of the relative intensity of Fe XVII emission lines at 15.014 and 15.261 Å (I(15.01 Å)/I(15.26 Å), also labeled as I3C/I3D).
| Source | Ratio [I3C/I3D] | References |
|---|---|---|
| Theory: | ||
| Bhatia & Doschek (1992) | 4.28 | |
| Cornille et al. (1994) | 4.57 | |
| Mohan et al. (1997) | 3.99 | |
| Safronova et al. (2001) | 3.43 | |
| Chen (2007) | 3.54 | |
| Gu (2009) | 3.50 | |
| Bernitt et al. (2012) | 3.49 | |
| Oreshkina et al. (2014) | 3.56 | |
| Santana et al. (2015) | 3.44 | |
| Mendoza & Bautista (2017) | 2.82 | |
| Wu & Gao (2019) | 3.567 | |
| Laboratory: | ||
| LCLS (a) | 2.61 ± 0.23 | 1 |
| PLT (b) | 2.48 ± 0.40 | 2 |
| 2.13 ± 0.37 | 3 | |
| EBIT (c) | 3.04 ± 0.12 | 4 |
| 1.90 ± 0.11 (d) | 5 | |
| 2.63 ± 0.15 (e) | 6 | |
| 2.77 ± 0.3 | 7 | |
| PolarX-EBIT (f) | 3.09 ± 0.08stat. ± 0.06sys. | 8 |
| AtomDB (g) | 3.22 | |
| Astrophysical sources: | ||
| Sun | 2.02 ± 0.28 | 9 |
| NGC 4635 | 2.30 ± 0.18 | 10 |
| Capella | 2.42 ± 0.22 | 11 |
| 2.85 ± 0.14 | 12 | |
| EX Hya | 2.46 ± 0.42 | 13 |
| CAL 87 | 0.70−0.80 | This work |
Notes.
Linac Coherent Light Source (LCLS) (Emma et al. 2010) free-electron X-ray laser.
PolarX-electron beam ion trap (PolarX-EBIT) (Micke et al. 2018).
AtomDB database version 3.0.9 (Smith et al. 2001; Foster et al. 2012; Foster & Heuer 2020).
References: (1) Bernitt et al. (2012); (2) Beiersdorfer et al. (2001); (3) Beiersdorfer et al. (2004); (4) Brown et al. (1998); (5) Brown et al. (2001); (6) Brown et al. (2001); (7) Brown et al. (2006); (8) Kühn et al. (2020); (9) Saba et al. (1999); (10) Xu et al. (2002); (11) Behar et al. (2001); (12) Mewe et al. (2001); (13) Mauche et al. (2001).
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