Colloquium: Markus Roth (Landessternwarte Tautenburg) | 12.10.2023

Probing stellar physics by helio- and asteroseismology

Abstract: The Sun and the stars are subject to sound waves that probe their interiors. Observations of these stellar oscillations have emerged as a powerful tool to gain information on the processes inside the Sun and the stars. Through helio- and asteroseismology detailed inferences of the stellar internal structure, rotation, flows, and origins of magnetic activity can be obtained. In particular, helioseismology promises to studying sunspots and other magnetic active areas on the Sun, which have an important impact on our technological society through potentially harmful solar eruptions. New instrumentation to improve the helioseismic techniques are currently developed. However, a complete understanding of the Sun, and in particular of its magnetism, can only be obtained by understanding the internal structure and properties of the stars in general. Asteroseismology offers solving this problem.

• Date:
  Oct. 12, 2023, 2:30 p.m. – 6 p.m.
  
  
• Location:

  Schwarzschildhaus Lecture Hall

  
  
• Contact:
  Julián Alvarado-Gómez