Recipe reference

Runtime discovery

for recipe in qsospec.recipes.list_complexes():
    print(qsospec.recipes.describe(recipe.id))

Built-in auto-enabled recipes

ID	Window (Å)	Default model and behavior
`lya_nv`	1150–1290	Two broad Lyα plus one broad N V effective blend; dedicated Lyα coverage classifier and adapter.
`civ`	1450–1700	Three broad C IV blend Gaussians; full coverage; generic backend.
`ciii`	1700–1970	Two broad C III] Gaussians; full coverage; generic backend.
`mgii`	2700–2900	Two broad plus one narrow Mg II blend; dedicated adapter.
`oii_nev_neiii_hgamma`	3380–4425	[Ne V], [O II], [Ne III], narrow and broad Hγ; component-adaptive generic backend.
`hbeta_oiii`	4640–5100	Three broad Hβ, narrow Hβ/[O III], optional wings and He II; dedicated adapter.
`halpha_nii_sii`	6400–6800	Three broad Hα plus narrow Hα/[N II]/[S II]; dedicated adapter.
`paschen_nir`	9900–13050	Paδ, He I 10833, Paγ, O I 11290, and Paβ broad profiles; component-adaptive generic backend.

generic_narrow_lines is available for custom construction but is not auto-enabled.

Coverage policy

General recipes require at least 80% total-window overlap, enough valid pixels, and safe required-line centers. Component-adaptive recipes choose covered components only after the total window passes.

Lyα fits full and red-side-only coverage. Red-side-only measurements are limited and never reliable; edge-truncated and not-covered cases are skipped.

Custom recipes

Use qsospec.recipes.generic_narrow_lines() or construct qsospec.ComponentRecipe and qsospec.ComplexRecipe. See Create a custom recipe.

Line registry

The line registry stores canonical vacuum wavelengths and aliases:

qsospec.lines.list()
qsospec.lines.resolve("oiii 5007")
qsospec.lines.get("oiii_5008")