Date:
Thu, 15/07/202113:00-14:00
Location:
https://huji.zoom.us/j/89109523146?pwd=Q1Z0b2xpTHRiZ1hla2RSRDViRmNwdz09
Title: Asteroseismology: the stellar evolution revolution
Abstract: High-precision photometric monitoring by space telescopes offered us an efficient tool to detect numerous oscillation modes in a wide variety of stars. In this talk, we hunt for 'good vibrations', in the sense that their observed properties allow us to derive how stars grow, age, and rotate. We first provide a basic introduction into asteroseismology for the non-expert. We discuss various types of oscillation modes and discuss their frequency ranges. We then move on to applications of space asteroseismology, focusing on results from 4-year Kepler light curves, gradually diving deeper into the stellar interior. We treat high-precision sizing, weighing, and ageing of stars throughout the Milky Way, derive the internal rotation of stars and unravel deep internal mixing inside stars with a convective core. We end with a future outlook for this booming research field of astrophysics, thanks to the ongoing NASA TESS and future ESA PLATO space missions.
***HE seminar recordings***
_______________________________________________
Abstract: High-precision photometric monitoring by space telescopes offered us an efficient tool to detect numerous oscillation modes in a wide variety of stars. In this talk, we hunt for 'good vibrations', in the sense that their observed properties allow us to derive how stars grow, age, and rotate. We first provide a basic introduction into asteroseismology for the non-expert. We discuss various types of oscillation modes and discuss their frequency ranges. We then move on to applications of space asteroseismology, focusing on results from 4-year Kepler light curves, gradually diving deeper into the stellar interior. We treat high-precision sizing, weighing, and ageing of stars throughout the Milky Way, derive the internal rotation of stars and unravel deep internal mixing inside stars with a convective core. We end with a future outlook for this booming research field of astrophysics, thanks to the ongoing NASA TESS and future ESA PLATO space missions.
***HE seminar recordings***
_______________________________________________
Zoom details:
https://huji.zoom.us/j/89109523146?pwd=Q1Z0b2xpTHRiZ1hla2RSRDViRmNwdz09
Meeting ID: 891 0952 3146
Passcode: 485033