Interactive Examples

Divergent pointing

Introduction to the divergent pointing mode, with a single array. Drag the divergence parameter and see how the hyper field of view and mean multiplicity trade off.

CTAO sites

CTAO is two arrays: North at La Palma, 4 LSTs and 9 MSTs, and South at Paranal, 14 MSTs and 37 SSTs with no LSTs at all. Loads both, and compares what their size and camera mix buy in hyper FoV and multiplicity.

Observing a real source

Pick a source and a night. When is it up, when is the sun down, and what happens to the array’s coverage as it tracks a source across the sky. Uses Observation.

Covering GW170817

Four ways to put an array on a real gravitational-wave localization: parallel, divergent, tiling, sub-arrays and shaped pointing. Pick a map and a strategy and watch the multiplicity change shape. The argument these figures belong to is in GW alerts follow-up: divergence is not the way.

Choosing div

The question the guide leaves open. Decide what field of view you want and what multiplicity you can live with, and those two fix div – which turns out to move as the source does.

Each is a marimo notebook under examples/marimo/, editable locally with marimo edit examples/marimo/<name>.py.