Analytical Models
Built-in geometries set from a handful of parameters, with no external data. Useful for benchmarks, parameter sweeps, and as toy models for the radiative transfer at play in more complex configurations.
| Geometry | Description |
|---|---|
| Spherical Shell | Uniform spherical shell (static or outflowing); the classic expanding-shell Lyα model |
| Power-Law Shell | Spherical shell with radial power-law density and velocity profiles |
| Infinite Slab | 1-D slab along z; the analytic Neufeld (1990) benchmark, with optional dust |
| Slab with a Hole | Anisotropic slab with a clear channel for hole vs. slab Lyα escape (AMG24) |