Table 1
Mean measured abundance mass ratios and rms scatter resp. upper limits according to the results of Willingale et al. (2002), Docenko & Sunyaev (2010) and Chevalier & Kirshner (1979).
| Ratio | Mean | rms |
|
|
||
| H/Si | <2.29 × 10-5 | – |
| He/Si | <4.93 × 10-3 | – |
| C/Si | 1.76 | 0.88 |
| O/Si | 1.69 | 1.37 |
| Ne/Si | 0.24 | 0.37 |
| Mg/Si | 0.16 | 0.15 |
| S/Si | 1.25 | 0.24 |
| Ar/Si | 1.38 | 0.48 |
| Ca/Si | 1.46 | 0.68 |
| FeL/Si | 0.19 | 0.65 |
| FeK/Si | 0.60 | 0.51 |
| Ni/Si | 1.67 | 5.52 |
Notes. The mass ratios are given relative to solar values. To faciliate the comparison, the data from Chevalier & Kirshner (1979) for H and He are indicated relative to Si, too.
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