Leiden University Manuals

Leiden University Radiation Bookkeeping Guide 1994-2008 Edition

This guide explains terminology and methods for extracting chemical and physical information from spectral line observations. It covers fluxes, intensities, antenna temperatures, and radiative transfer equations. The RADEX software is introduced as a tool for constraining abundances and physical conditions from observations. The document assumes basic knowledge of astronomy and provides practical steps for comparing observations with model calculations.

Covers: Introduction · Basic radiative transfer · Solving radiative transfer problems · RADEX · An example