Stromlo Stellar Tracks
Stromlo Stellar Tracks: non-solar scaled abundances for massive stars
The first implementation of Galactic Concordance abundances to stellar evolution models.
Brief Overview of the Stromlo Models
The Stromlo stellar evolutionary tracks are computed with the Modules for Experiments in Stellar Astrophysics (MESA; Paxton et al. 2011, 2013, 2015) code. MESA is an open-source stellar evolution package. The current release of the Stromlo models are computed with MESA version v9293.
We use the MESA setup and parameters as outlined by MESA Isochrones and Stellar Tracks (MIST; Choi et al. (2016) to create our stellar tracks. The only change made is the assumption of non-solar scaled elemental abundances with metallicity, following the Galactic Concordance abundance ratios for present-day massive stars and a scaling method with metallicity outlined by Nicholls et al. (2017). The Galactic Concordance abundances are representive of hot, massive stars in the local universe and ties the stellar abundance scale to the nebular abundance scale for self-consistent star and HII region nebular modelling. The Stromlo tracks are available for massive stars 10-300 M☉.
Please cite the Grasha et al. (2021) and Roy et al. (2020) papers in a publication that makes use of the Stromlo stellar track models.
Questions? Please contact kathryn.grasha-at-anu.edu.au or arpita.roy1016-at-gmail.com or technical details of any numerical implementation queries.