Presentation
The Sun is a relatively quiet star with a variation in the total energy output of only 0.1% over the 11-year solar cycle. In short wavelengths and in particle emission, the situation is different – solar active regions with large sunspots may cause major eruptions, called flares, often accompanied by ejections of high-energy particles, magnetic field and plasma. These solar storms cause northern light displays and may damage satellites, electronics and power distribution systems on Earth.
After a general introduction to these space weather phenomena, Carlsson will concentrate on the computational challenges in modeling the origin of space weather, solar active regions and solar storms. Our simulations today can be run on systems with 100,000 processors but we are developing new methods that can be run on the next generation of supercomputers with millions of cores. Such computational capacity is necessary for the modeling of the whole Sun as one coupled system.
Speaker
Mats Carlsson works as a Professor at the Institute of Theoretical Astrophysics (UiO) and is the Director of the Rosseland Centre for Solar Physics. He has a PhD from Uppsala University, Sweden and extensive science management experience from both high-performance computing and solar physics. His academic interests include solar physics, stellar atmosphere modeling, radiation magnetohydrodynamics and space projects. In 2017, Carlsson received the Arctowski medal from the US National Academy of Sciences.
Program
11:45 – Doors open and lunch is served
12:00 – "Understanding the Workings of the Energetic Sun" by Mats Carlsson
13:00 – Mingling (and goodbye)
To participate, please fill out the registration form. This way, we will not be short on food and drinks! (Registration is not binding and you are welcome to join us anyway!)
About the seminar series
Once a month, dScience will invite you to join us for lunch, soft drinks and professional talks at the Science Library. In addition to these, we will serve lunch to PhD candidates in our lounge in Kristine Bonnevies hus every Thursday. Due to limited space (40 people), this will be first come, first served. See how to find us here (download).
Our lounge can also be booked by PhDs and Postdocs on a regular basis, whether it is for a meeting or just to hang out – we have fresh coffee all day long! Read more about the series and the upcoming program here.