Synthetic observations
The following examples show how to create synthetic observations with Magritte.
Note
In these examples we assume to have a Magritte model available. For more information on how to create a Magritte model, please refer to the creating models or post-processing examples.
Most of the following notebooks create synthetic channel maps. These are a series of 2D images that show which part of the model is visible at a given frequency. Because of the interaction of the Doppler shift with the velocity field, we can observe which part of the model is moving away from us (thus redshifted; denoted with positive velocity) and which part is moving towards us (thus blueshifted; denoted with negative velocity).
Warning
In Magritte versions between 0.3.0 and before 0.4.0, due to a programming oversight, the velocity definitions for channel maps were reversed. This was due to a mistake in the formula for the velocity in the example plotting functions.