Welcome to tstrippy’s documentation

tstrippy is a research code for modeling stellar stream formation, with an initial focus on stars escaping from globular clusters within the Milky Way. It provides gravitational potential models and numerical tools for integrating Hamiltonian equations of motion.

This package was developed by yours truly, Salvatore Ferrone, for the simulations presented in my PhD thesis. It is not intended to replace mature community packages such as galpy, gala, or Agama. Instead, it is a focused tool built for a specific scientific problem.

If you use this package and have questions, feel free to reach out: salvatore.ferrone.1996@gmail.com. Precomputed predictions for escaped tidal debris from Milky Way globular clusters are available here.

Documentation roadmap

This documentation is organized into three sections:

1. Package basics: loading included data products (currently the globular cluster catalog) and working with the built-in gravitational potential models.

2. Orbit integration in the Galaxy: solving for trajectories of point masses in different Galactic potentials.

3. Stream disruption workflows: simulating stream formation/disruption and validating that the method behaves as expected.

Installation

• Installation

Package basics

• Load the globular cluster catalog

Orbit integration in the Milky Way

• Integrating Galactic Orbits
• Reverse integrability of the globular cluster population
• Galactic bar
• Bar reverse integrability

Stream disruption examples

• Stream generation
• Stream with a bar