Table 3.
Summary of important coolants in our late-time magnetar-powered ejecta models. [See Section 4 for discussion.]
| Ion | Proc. | Main lines |
|---|---|---|
| He I | NT | 3888.6 Å; 1.083, 2.058 μm |
| He II | NT | 4685.7 Å |
| C II | COL | 2325.4 Å |
| C II | NT | 1335.7, 6578.0–6582.9, 7231.3–7236.4 Å |
| C III | COL | 1906.7–1908.7 Å |
| N II | COL | 6548.0, 6583.4 Å |
| O I | COL | 6300.3, 6363.8 Å |
| O I | NT | 8446.4 Å |
| O II | COL | 3726.0–3728.8 Å |
| O II | NT | 7318.9, 7320.0, 7329.7, 7330.7 Å |
| O III | COL | 4958.9, 5006.8 Å |
| O III | NT | 4363.2 Å |
| Ne II | COL | 12.81 μm |
| Ne III | COL | 15.55 μm |
| Si II | COL | 1.691 μm |
| Si II | NT | 3856.0, 5056.0, 6347.1 Å |
| Si III | COL | 1882.7, 1892.0 Å |
| S I | COL | 25.242 μm |
| S II | COL | 6716.4 Å |
| S III | COL | 9068.6, 9530.6 Å; 18.708 μm |
| Ar II | COL | 6.983 μm |
| Ar III | COL | 7135.8 Å; 8.989, 21.826 μm |
| Fe I | COL | 24.036 μm |
| Fe II | COL | 17.931, 24.512, 25.981 μm |
| Fe III | COL | 4658.0, 5011.2 Å; 2.218, 7.788, 22.919 μm |
| Fe IV | COL | 2829.4, 2835.7 Å, 2.836 μm |
| Ni I | COL | 7.505 μm |
| Ni II | COL | 6.634, 10.679, 12.725 μm |
| Ni III | COL | 7.347, 10.999 μm |
Notes. We list the ions and processes of relevance, together with the dominant associated lines. The list is ordered in increasing atomic number, and then in increasing ionization state, for all species. The term “COL” stands for collisional excitation and “NT” for nonthermal excitation.
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