| arXiv | Name | Symbol | Parsed | Bound |
|---|---|---|---|---|
| astro-ph/0109255 🔍 (source) | nitrogen-to-oxygen abundance ratio | log N / O | -1.64 ± 0.02 |
|
| astro-ph/0311564 🔍 (source) | log N / O | -1.6 |
Upper | |
| astro-ph/0408392 🔍 (source) | nitrogen-to-oxygen abundance ratios | log N / O | -1.6 ± 0.02 |
|
| astro-ph/0511644 🔍 (source) | log N / O | -1.6 |
Lower |