The production and survival of the quasistable isomer 180Ta during the stellar nucleosynthesis has remained a matter of discussion for years. A careful analysis of the available experimental data and theoretical calculations enabled us to reproduce the observed solar abundance of 180Ta in the classical s-process (kT=28 keV -- 33 keV).
@article{arxiv.astro-ph/0207123,
title = {$^{180}$Ta production in the classical s-process},
author = {Markus Loewe and Petr Alexa and Jorrit de Boer and Michael Wuerkner},
journal= {arXiv preprint arXiv:astro-ph/0207123},
year = {2015}
}