Particle spray algorithm by Chen et al. (2025)

Animation: positions and velocity vectors of escaped stream particles. Download the animation at data/movie.gif or data/movie.mp4.

Notebooks

We provide notebooks to generate mock streams using the Chen+25 model via agama, gala, galax, and galpy. Checkout these notebooks and follow the instructions therein!

• agama: agama_stream.ipynb
• gala: gala_stream.ipynb
• galax: galax_stream.ipynb
• galpy: galpy_stream.ipynb

Citation

We recommend citing this algorithm as Chen+25, although it was referred to as Chen+24 as the method paper was originally submitted to arXiv in 2024.

If you use this algorithm for a publication, we kindly request you to cite the following original paper:

• Y. Chen, M. Valluri, O. Y. Gnedin, & N. Ash (2025) Improved particle spray algorithm for modeling globular cluster streams, ApJS 276, 32. arXiv:2408.01496, ADS link