A guide to astronomical molecular spectroscopy and radiative transfer using RADEX software.
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.
The document aims to provide practical steps for comparing astronomical observations with specific types of model calculations.
The power received from a source can be expressed as the product of Boltzmann's constant, the antenna temperature, and the bandwidth.