Hunting for Magnetic Star-Planet Interactions with sensitive radio and radial velocity surveys
Authors/Creators
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1.
University of Amsterdam
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2.
Netherlands Institute for Radio Astronomy
- 3. Princeton University
Description
Magnetic Star-Planet Interactions (MSPI), where a planet in a close-in orbit magnetically interacts with its host star, can produce circularly polarized, low-frequency radio emission. This offers a potential new avenue for discovering planets that may be difficult to discover with traditional methods, and for the possibility to characterize their magnetic environments. Recently, we have detected hints of such radio emission from a sample of nearby (<50 pc) M stars, using the LOw Frequency ARray (LOFAR). Confirming MSPI in these systems requires detecting periodic radio emission, modulated by a close-in planet's orbital period. We therefore conduct spectroscopic follow-up with the Habitable-zone Planet Finder and NEID spectrographs, to find close-in planets and to determine their orbital periods. This poster highlights the advantage of combined radio and radial velocity surveys in the hunt for MSPI.
Files
Cool_star_poster_EK.pdf
Files
(11.6 MB)
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Additional details
Related works
- Cites
- Publication: 10.1051/0004-6361/201730957 (DOI)
- Publication: 10.1051/0004-6361/202557749 (DOI)
- Publication: 10.1051/0004-6361/202556483 (DOI)
- Publication: 10.1038/s41550-021-01483-0 (DOI)
Dates
- Submitted
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2026-06-08