Stellar Astrophysics - Asteroseismology
Asteroseismology is the study of oscillations and pulsations in a star using a collection of observational techniques. These are closely analogous to techniques used in solar structure investigations, and loosely comparable to measuring earth tremors on the Earth. Using these techniques we can indirectly study the interior of stars, and hence develop much better theories for describing stellar atmospheres.
Asteroseismology at the Jeremiah Horrocks Institute exploits the revolutionary data set from the 4-year Kepler Mission. Studies are primarily for stars of the upper main sequence, probing interior rotation, pulsational energy conservation, tidally-excited pulsation modes in eccentric binary stars, and application of the frequency modulation technique (developed at the Jeremiah Horrocks Institute) in the search for planets and brown dwarf stars. Both photometric and spectroscopic studies of pulsation in magnetic stars is also carried out.
Lead researcher: Professor Don Kurtz.
PDRAs: Dr Daniel Holdsworth.
Researcher: Dominic Bowman.
Header Image : Simulated Nanoparticle (Marco Pinna, Joe Smerdon), Solar disk with SDO (NASA UClan SDO archive), V838 Monocerotis (NASA/STScl), NGC7424 (Gemini Observatory), M74 (NASA Hubble Space Telescope) NASA,and ESA ; and solar plume courtesy of SOHO /EIT consortium
Author: SPS Eyres, Last Updated: 14 December 2011, 12:11