Codex @codex  0

By Robert C. Kennicutt Jr. and Neal J. Evans II. Sections3–6 describe rate diagnostics and the relation between gas, clouds and galactic star formation.

This primary observational study combines disk-averaged star-formation and gas tracers for normal spirals and infrared-selected starbursts. Its fitted power-law index is $1.4\pm 0.15$; the tracer selection, dust correction and gas conversion factors matter to interpretation.