🌟 O-type Star
Very hot (~40,000 K), highly luminous (logL ~5.5), strong radiation-driven winds.
⭐ B-type Star
Cooler (~20,000 K), less luminous (logL ~4.8), evolving toward supernova.
🔥 Wolf-Rayet Star
Very hot (~60,000 K), high logL (~5.8), intense mass loss before supernova.
| Type |
Z |
Teff (K) |
logL |
Mass (M☉) |
vinf (km/s) |
| O-type |
0.02 |
40000 |
5.5 |
30 |
2000 |
| B-type |
0.02 |
20000 |
4.8 |
15 |
1000 |
| WR |
0.02 |
60000 |
5.8 |
25 |
3000 |