3D Galaxy Collision Lab — Instructions & Documentation
This interactive simulator allows visitors to explore the dynamics of galaxy collisions in a simplified 3D-like environment. Users can adjust galaxy parameters and observe the resulting tidal forces, starstream formation, and black hole interactions. The simulation demonstrates concepts observed in real astronomical galaxy mergers.
Controls & Parameters
- Galaxy 1 Stars / Galaxy 2 Stars: Adjusts the number of simulated stars in each galaxy. Higher numbers produce denser star fields and more visually pronounced tidal tails.
- Galaxy 1 / Galaxy 2 Black Hole Mass: Sets the mass of the central supermassive black holes for each galaxy. Greater mass increases the gravitational influence on nearby stars, affecting their orbital motion.
- Collision Speed: Determines the relative speed of the galaxies as they approach each other. Faster collisions produce shorter but more dramatic tidal interactions.
- Start Collision: Initiates the simulation with the currently selected parameters.
Simulation Stages
- Pre-collision: Galaxies are approaching each other; stars orbit their respective central black holes. Tidal effects are minimal.
- Interaction: The galaxies begin to overlap. Gravitational forces pull stars outwards, forming tidal tails and streams. Stars may cluster in denser regions, representing potential starburst activity.
- Merger: The galaxies coalesce into a single system. Central black holes draw closer, eventually merging. Stellar orbits settle into a new, larger galactic structure.
Visual Indicators
- Stars: Individual particles represent stars orbiting around black holes.
- Black Holes: Glowing orange points indicate the position and mass of central supermassive black holes.
- Tidal Tails: Naturally form as stars are pulled out during close gravitational interactions.
- Stage & Info Labels: Dynamic text displays the current stage, elapsed simulation time, and star count.
Scientific Provenance & Governance
Scientific Provenance
This simulator is based on observational and theoretical studies of galaxy mergers and supermassive black hole interactions. Real galaxy collisions are studied using telescope surveys and computational simulations to understand tidal forces, star formation bursts, and remnant galaxy morphology.
- Toomre, A. & Toomre, J. (1972) — Galactic Bridges and Tails.
https://doi.org/10.1086/151131 - Springel, V., et al. (2005) — Simulations of the Formation, Evolution and Clustering of Galaxies and Black Holes.
https://doi.org/10.1038/nature03597 - Mihos, J. C. & Hernquist, L. (1996) — Gasdynamics and Starbursts in Major Mergers.
https://doi.org/10.1086/177358
Governance
Astrophyzix provides this simulation purely for educational purposes. Parameters and visualizations are approximations intended to illustrate general behaviors of galaxy collisions. No numerical precision for actual gravitational calculations is implied. All conceptual content aligns with peer-reviewed literature and publicly available astronomical research.