SPISEA: A Python-based Simple Stellar Population Synthesis Code for Star Clusters
Abstract
We present Stellar Population Interface for Stellar Evolution and Atmospheres (SPISEA), an open-source Python package that simulates simple stellar populations. The strength of SPISEA is its modular interface which offers the user control of 13 input properties including (but not limited to) the initial mass function, stellar multiplicity, extinction law, and the metallicity-dependent stellar evolution and atmosphere model grids used. The user also has control over the initial-final mass relation in order to produce compact stellar remnants (black holes, neutron stars, and white dwarfs). We demonstrate several outputs produced by the code, including color-magnitude diagrams, HR-diagrams, luminosity functions, and mass functions. SPISEA is object-oriented and extensible, and we welcome contributions from the community. The code and documentation are available on GitHub (https://github.com/astropy/SPISEA) and ReadtheDocs (https://spisea.readthedocs.io/en/latest/), respectively.
- Publication:
-
The Astronomical Journal
- Pub Date:
- September 2020
- DOI:
- 10.3847/1538-3881/aba533
- arXiv:
- arXiv:2006.06691
- Bibcode:
- 2020AJ....160..143H
- Keywords:
-
- Astronomy software;
- Open source software;
- Star clusters;
- Stellar populations;
- 1855;
- 1866;
- 1567;
- 1622;
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- 18 pages, 7 figures. Version update: Software package renamed from "PyPopStar" to "SPISEA" due to a naming conflict. Also added a few references to intro. Otherwise, paper is the same