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About this Tool

The **Halo Visualizer** is a specialized tool designed for astrophysicists and researchers to interactively explore dark matter halo catalogs from cosmological simulations.

Key Features

• 3D Visualization: High-performance rendering of millions of particles using WebGL (Three.js).
• Hierarchy Explorer: Investigate parent-child relationships in structure formation (Subhalos).
• Scientific Analysis: Real-time calculation of Halo Mass Functions (HMF) and Mass-Radius relations.
• Schema Agnostic: Intelligent scanning allows ingestion of various HDF5 formats without strict schema requirements.

How to Use

1. Upload: Drag & Drop your `.h5` or `.csv` catalog.
2. Map: Confirm the column mapping (Mass, Position, ID, Parent ID).
3. Explore: Use the mouse to rotate/zoom. Click on halos to see their properties and connections.

Demo Mode

Don't have a dataset? Use the Load Sample Data button to generate a realistic NFW cluster simulation on the fly.