This project incorporates interferometric measurements of stellar angular diameters to provide model-independent stellar radii for a sample of nearby stars spanning a range of evolutionary phases — from the main sequence through the red clump. These radii are used to corroborate masses and ages derived from BEACON-I and BEACON-II, and to refine evolutionary-stage-dependent correction factors.
What you will do
- Cross-match interferometric radius measurements with TESS asteroseismic targets (>100 stars)
- Refine seismic scaling relation correction factors across evolutionary phases, with emphasis on the subgiant regime
- Bootstrap calibrations to open and globular clusters in collaboration with international partners
- Deploy validated calibrations to large TESS samples (≥50,000 stars)
Skills you will develop
Interferometric data analysis, seismic scaling relations, large-scale survey deployment, international collaboration.
Expected outcomes
A pristine sample of evolved stars with empirically anchored masses and radii, and calibration prescriptions deployable to ≥50,000 TESS targets.
BEACON aims to establish an empirically calibrated framework linking stellar oscillation properties to independently measured stellar masses, radii, and ages across post-solar evolutionary phases. By anchoring survey-scale seismic measurements to benchmark stars with dynamical masses and interferometric radii, the project will enable precise, model-independent stellar ages to be derived for evolved stars throughout the Milky Way.
If you want to know more, please get in touch via email.