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Norberto Castro (AIP)

Dissecting the stellar evolution of massive stars
Wann Am 28.02.2019 von 14:30 bis 15:30
Was
  • Kolloquium
Wo SH Lecture Hall
Termin übernehmen vCal / iCal

Galaxies are chemically and dynamically shaped by the will of the most massive stars. Nevertheless, their evolution and formation are poorly understood, uncertainties that propagate to other Astrophysical fields. Comprehensive and systematic analyses are key to understand massive stars evolution,  refuting/supporting  different theories. Thus, the analysis of  329 OB stars in the SMC showed the potential of multi-object spectroscopic studies to  draw empirical stellar evolution boundaries, results that theory must reproduce (Castro et al. 2018). Our current work in  NGC2070 (the most luminous star-forming complex in the Local Group) supports this approach,  determining and spatially mapping ages by VLT-MUSE.  Moving the analysis towards distance and low metallicity environments (e.g. LeoP or NGC300), where similar extreme star-forming complexes are hosted, is essential. These galaxies will bring new pieces in the stellar evolution puzzle and complete the general massive stellar evolution picture in the spectroscopic Hertzsprung-Russell diagram.