research
Research on stellar magnetic fields, magnetic activity, and exoplanet environments.
I investigate how magnetic fields are organized from stellar surfaces into upper atmospheres, how they power observable activity, and what that activity means for planets orbiting active stars.
My research combines high-resolution spectropolarimetry from ESPaDOnS, NARVAL, and HARPSpol with time-domain photometry from TESS and Kepler. I develop analysis and inversion tools that connect polarized spectra, surface structures, flares, and radio emission across different atmospheric layers.
Surface fields and topology
Mapping magnetic stellar surfaces
I use spectropolarimetric time series and tomographic methods to reconstruct stellar magnetic topologies, starspots, and prominence systems. These maps show how magnetic structures evolve across rotation and how they differ from the solar case.
Chromospheres and eruptions
Measuring fields above the photosphere
Magnetic energy that heats coronae and drives eruptions is stored above the visible stellar surface. I measure magnetic fields using spectral lines formed at different atmospheric heights to constrain this energy reservoir and its complex topology.
Stars and their planets
Tracing stellar space weather
I connect magnetic-field structure with flares, coherent radio bursts, high-energy radiation, and stellar winds. The goal is to understand the long-term environments experienced by planets around magnetically active low-mass stars.
Approach
Observations, inference, and open tools
Observe
Multi-epoch photometry, spectroscopy, spectropolarimetry, and radio observations.
Infer
Magnetic-field measurements, surface imaging, time-series analysis, and flare statistics.
Build
Reusable scientific software for polarized spectra, tomography, and exploratory analysis.
Work together
Interested in a related problem?
I welcome collaborations involving stellar magnetic fields, spectropolarimetric observations, activity diagnostics, and scientific software.
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