Star-Planet Interactions in the Radio Domain: Prospect for Their Detection
arXiv:2409.16038 · doi:10.1007/978-3-319-55333-7_22
Abstract
All types of interaction of a magnetized plasma flow with an obstacle (magnetized or not) are considered, and those susceptible to produce a radio signature are identified. The role of the sub-Alfvénic or super-Alfvénic character of the flow is discussed. Known examples in the solar system are given, as well as extrapolations to star-planet plasma interactions. The dissipated power and the fraction that goes into radio waves are evaluated in the frame of the radio-magnetic scaling law, the theoretical bases and validity of which are discussed in the light of recent works. Then it is shown how radio signatures can be interpreted in the frame of the cyclotron-maser theory (developed for explaining the generation of solar system planetary auroral and satellite-induced radio emissions) for deducing many physical parameters of the system studied, including the planetary or stellar magnetic field. Recent detections of such radio signatures with new generation low-frequency radiotelescopes and future prospects are then outlined.
arXiv comment22 pages, 2 figures, 1 table
References in corpus (16)
- A magnetic field evolution scenario for brown dwarfs and giant planets
- Magnetospherically driven optical and radio aurorae at the end of the stellar main sequence
- Discovery of a strong magnetic field on the O star HD 191612: new clues to the future of theta1 Orionis C?
- Magnetic games between a planet and its host star: the key role of topology
- Magnetic field, differential rotation and activity of the hot-Jupiter hosting star HD 179949
- On the diversity of magnetic interactions in close-in star-planet systems
- Radio emissions from pulsar companions : a refutable explanation for galactic transients and fast radio bursts
- Radio emission from exoplanets: the role of the stellar coronal density and magnetic field strength
- Magnetosphere-ionosphere coupling at Jupiter-like exoplanets with internal plasma sources: implications for detectability of auroral radio emissions
- Electron-cyclotron maser emission from white-dwarf pairs and white-dwarf planetary systems
- Stellar wind-magnetosphere interaction at exoplanets: computations of auroral radio powers
- Jupiter radio emission induced by Ganymede and consequences for the radio detection of exoplanets
- LOFAR tied-array imaging and spectroscopy of solar S bursts
- Magnetic coupling of planets and small bodies with a pulsar wind"
- Radio emission in Mercury magnetosphere
- Evidence for Planet-induced Chromospheric Activity on HD 179949
Cited by in corpus (8)
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- MHD study of extreme space weather conditions for exoplanets with Earth-like magnetospheres: On habitability conditions and radio-emission
- Follow-up LOFAR observations of the Boötis exoplanetary system
- On stellar hotspots due to star-planet magnetic interactions: How much power can actually be transmitted to the chromosphere?
- Radio prospects of extrasolar aurorae polaris as a probe of planetary magnetism
- Resistive MHD Simulations of Stellar Wind-Magnetosphere Coupling in TRAPPIST-1e