Details about ytree
| Category | Information | 
|---|---|
| Purpose | Structure formation in cosmology proceeds in a hierarchical fashion, where dark matter halos grow via mergers with other halos. This type of evolution can be conceptualized as a tree, with small branches connecting to successively larger ones, and finally to the trunk. A merger tree describes the growth of halos in a cosmological simulation by linking a halo appearing in a given snapshot to its direct ancestors in a previous snapshot and its descendent in the next snapshot. Merger trees are computationally expensive to generate and a great number of codes exist for computing them. However, each of these codes saves the resulting data to a different format. ytree is Python package for reading and working with merger tree data from multiple formats. | 
| Related community | Action Dark Energy Theory/Univers/Gravity | 
| Tool type | Software | 
| URL | https://github.com/ytree-project/ytree | 
| Documentation | https://ytree.readthedocs.io/en/latest/index.html | 
| Author | Britton Smith | 
| Language | Python 3.x | 
| Keywords | None given | 
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