About Professor Tim Bedding

Stars are wonderful laboratories for studying the physics of matter under extreme conditions. In particular, measuring their oscillation frequencies allows us to probe their interiors in exquisite detail and test our theories of stellar structure and evolution.

Tim Bedding is an astronomer specializing in high-precision observations of stars. In particular, he is a world leader in asteroseismology, the study of stellar oscillations.

Tim Bedding is a world expert in asteroseismology, the study of stellar oscillations.  He leads a group that made the first clear detection of oscillations in a Sun-like star by using some of the world’s biggest and most advanced telescopes. The group is involved in several international projects, including a world-wide network of telescopes to study oscillating stars, as well as NASA’s Kepler mission, which will measure oscillations in thousands of stars using a dedicated space telescope.

www.physics.usyd.edu.au/~bedding

Selected publications

  • Amplitudes of stellar oscillations: the implications for asteroseismology (1995)
    A&A, 293, 87. H.Kjeldsen and T.R.Bedding
  • Solar-like oscillations in eta Boo (1995)
    AJ, 109, 1313.  H.Kjeldsen, T.R.Bedding et al.
  • Measuring stellar oscillations using equivalent widths of absorption lines (1996)
    MNRAS, 280, 1155.  T.R.Bedding et al.
  • Hipparcos period-luminosity relations for Mira and semiregular variables (1998)
    ApJ, 506, L47.  T.R.Bedding and A.A.Zijlstra
  • Mode switching in the nearby Mira-like variable R Doradus (1998)
    MNRAS, 301, 1073.  T.R.Bedding et al.
  • Evidence for solar-like oscillations in beta Hydri (2001)
    ApJ, 549, L105, T.R.Bedding et al.
  • Confirmation of solar-like oscillations in eta Bootis (2003)
    AJ, 126, 1483.  H.Kjeldsen, T.R.Bedding, et al.
  • Oscillation frequencies and mode lifetimes in alpha Centauri A (2004)
    ApJ, 614, 380.  T.R.Bedding et al.
  • Solar-like oscillations in alpha Centauri B (2005)
    ApJ, 635, 1281. H.Kjeldsen, T.R.Bedding, et al.
  • Solar-like oscillations in the G2 subgiant beta Hydri from dual-site observations (2007)
    ApJ, 663, 1315.  T.R.Bedding et al.