Dear all,
The Department of Physics Cordially Invite you to the Following Colloquium:
Title: Recreating Stars on Computers and Supercomputers (Stellar digital twins)
Speaker: Prof. Raphael Hirschi, School of Chemical and Physical Sciences, Keele University, UK
Date: Friday July 21th 2023, 3:00 pm
Venue: BSFB, Fakulti Sains
Abstract:
Stars play a key role in the Cosmos through the light they shine, the chemical elements they produce and the kinetic energy they inject into their surroundings via winds and supernova explosions. For many decades, our understanding of the structure, evolution and fate of stars has greatly benefitted from comparing spherically symmetric, one-dimensional (1D) theoretical models to a variety of observations. The large increase in the number and quality of observations combined with the advent of asteroseismology probing the interior of stars, however, has exposed the limitation of 1D models. The increasing computing power available on high-performance/super-
About the Speaker:
Prof. Hirschi completed a MSc in Physics at the Swiss Polytechnic School (EPFL) in Lausanne in 1999 and a PhD in Astrophysics at the Geneva Observatory in 2004. During this PhD, he improved computer models of massive stars to determine their fate (black hole or neutron star), work for which he received the Plantamour-Prevost Prize. He then went to the University of Basel as a Post-doctoral fellow to answer the question: “In which stars are the chemical elements we are made of created?”. Since joining Keele University in 2007 as a RCUK academic fellow, major highlights of his research include: the determination of the mass and fate of the most massive stars known to date, explaining unique abundances in the early Universe and the setting-up and leading of large projects (ERC starting grant for SHYNE project 2012-2017) and collaborations (NUGRID, BRIDGCE, ChETEC COST Action). He was promoted to Reader in 2013 and Professor in 2018.
Thank you.
