POSYDON Data Release 2

2024/11/04 by Jeff J. Andrews, Andrews, Jeff J., Simone S. Bavera +45 · 6 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.2411.02376

openalex publication_date 2024/11/04 · openalex created_date 2024/11/15 · openalex updated_date 2026/07/28

Abstract

The POSYDON Data Release 2, corresponding to the binary population synthesis code POSYDON version 2.0.0. Refer to https://posydon.org/ for a detailed description, download scripts, and installation instructions. This dataset includes the downsampled single- and binary-star model grids (two single star grids and five binary star grids) along with their post-processed quantities and the trained classification and interpolation models, one tarball for each of our eight modeled metallicities (POSYDON_data_v2_grids_XXX). The auxiliary data file (POSYDON_data_auxiliary.tar.gz) contains ancillary data to aid in post-processing grids and generating binary populations, including pre-loaded supernova prescriptions, star-formation histories, and gravitational wave sensitivities. We additionally provide our randomly sampled validation (POSYDON_validation_v2_grids_XXX) and test (POSYDON_random_v2_grids_XXX) binary star model grids for each of our metallicities.

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• Forming Double Neutron Stars using Detailed Binary Evolution Models with POSYDON: Comparison to the Galactic Systems

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