Szczegóły seminarium
Data: 04.06.2024
Dorottya Szecsi (UMK Torun) IN PERSON
The dirty secrets of stellar evolution modelling
Streszczenie:
The evolution of massive stars is the basis of several astrophysical
investigations, from predicting gravitational-wave event rates to
studying star-formation, stellar populations and chemical evolution of
the Universe. However, 1D simulations of massive stars, especially those
above 40 M☉, are subject to serious uncertainties. I present a
comparison between five published sets of stellar models (PARSEC,
MIST/MESA, Geneva, BPASS and BoOST/Bonn simulations). I show that there
are important differences between the predictions, which can lead to
strikingly different results in explaining observations of stellar
populations such as gravitational-wave event rates. Related article:
2022MNRAS.512.5717
Bio:
Assistant Professor at the Institute of Astronomy – Faculty of Physics, Astronomy and Informatics – Nicolaus Copernicus University, Toruń, Poland. Previously, I was a post-doctoral researcher at the University of Birmingham; and at the Astronomical Institute of the Czech Academy of Sciences. I received my PhD at the Argelander-Institut für Astronomie (Bonn University), in a graduation model of the Bonn-Cologne Grad. School, and as a member of the Stellar Astrophysics Group led by Prof. Dr. N. Langer. I graduated (MSc & BSc in Physics) at the Eötvös University (ELTE) in Budapest. Homepage