Star-Planet Interactions: A Computational View
arXiv:2506.00470 · doi:10.1146/annurev-astro-021225-030604
Abstract
There are several physical processes that mediate the interaction between an exoplanet and its host star, with the four main ones being due to magnetic, particle (stellar outflow), radiative and tidal interactions. These interactions can be observed at different wavelengths, from X-ray to radio. Their strengths depend on the architecture of planetary systems, as well as the age and activity level of the host stars. In particular, exoplanets in close-in orbits and/or orbiting active host stars can experience strong physical interactions, some of which are negligible or absent in the present-day Solar System planets. Here, I present an overview of star-planet interactions through the lens of three-dimensional (3D) numerical models. The main conclusions are: * Models are fundamental to interpret and guide observations. The powerful combination of observations and models allows us to extract important physical parameters of the system, such as, planetary magnetic fields, stellar wind properties, etc. * The non-axisymmetric forces of the interactions generate spatially asymmetric features (e.g., planetary material trailing the orbit, shock formation), thus requiring the use of 3D models. * Star-planet interactions vary in different timescales (from hours to giga-years) that are related to both planetary (orbital motion, rotation) and stellar (flares, cycles, and long-term evolution) properties. Understanding these variations require time-dependent models. I advocate that future 3D models should be informed by multi-wavelength, (near-)simultaneous observations. The use of observations is twofold: some generate inputs for models (eg stellar magnetic field maps), whereas others are fitted by models (eg spectroscopic transits). This combination of observations and models provides a powerful tool to derive physical properties of the system that would otherwise remain unknown.
arXiv commentInvited review article, 14 figures, 43 pages
References in corpus (130)
- Atmospheric Escape from Hot Jupiters
- Magnetic fields of non-degenerate stars
- Constraining the Age-Activity Relation for Cool Stars: The SDSS DR5 Low-Mass Star Spectroscopic Sample
- Alfven Wave Solar Model (AWSoM): Coronal Heating
- Large-scale magnetic topologies of late M dwarfs
- Stellar magnetism: empirical trends with age and rotation
- Planetary population synthesis coupled with atmospheric escape: a statistical view of evaporation
- Observations of Mass Loss from the Transiting Exoplanet HD 209458b
- The Orbital Evolution of Gas Giant Planets around Giant Stars
- The On/Off Nature of Star-Planet Interactions
- Hot Jupiters and Hot Spots: The Short- and Long-term Chromospheric Activity on Stars with Giant Planets
- Ground-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b
- Atmospheric Escape from Hot Jupiters
- The Extreme Ultraviolet and X-Ray Sun in Time: High-Energy Evolutionary Tracks of a Solar-Like Star
- Temporal variations in the evaporating atmosphere of the exoplanet HD 189733b
- The effect of evaporation on the evolution of close-in giant planets
- Tidal Locking of Habitable Exoplanets
- Searching for Star-Planet interactions within the magnetosphere of HD 189733
- 3D model of hydrogen atmospheric escape from HD209458b and HD189733b: radiative blow-out and stellar wind interactions
- Locking of the Rotation of Disk-Accreting Magnetized Stars
- Magnetism, rotation, and nonthermal emission in cool stars -- Average magnetic field measurements in 292 M dwarfs
- Energetic neutral atoms as the explanation for the high velocity hydrogen around HD 209458b
- A magnetic field evolution scenario for brown dwarfs and giant planets
- An evaporating planet in the wind: stellar wind interactions with the radiatively braked exosphere of GJ436 b
- Connecting Flares and Transient Mass Loss Events in Magnetically Active Stars
- Are superflares on solar analogues caused by extra-solar planets?
- Magnetic moment and plasma environment of HD 209458b as determined from Ly observations
- Atmospheric escape from HD 189733b observed in HI Lyman-alpha: detailed analysis of HST/STIS September 2011 observations
- Coherent radio emission from a quiescent red dwarf indicative of star-planet interaction
- Classification of magnetized star--planet interactions: bow shocks, tails, and inspiraling flows
- Magnetic fields of M dwarfs
- Mass loss in pre-main sequence stars via coronal mass ejections and implications for angular momentum loss
- Magnetic field strengths of hot Jupiters from signals of star-planet interactions
- Magnetically Controlled Outflows from Hot Jupiters
- Hot Jupiter Magnetospheres
- The evolution of the solar wind
- On the environment surrounding close-in exoplanets
- Magnetic games between a planet and its host star: the key role of topology
- Where are the Fossils of the First Galaxies? II. True Fossils, Ghost Halos, and the Missing Bright Satellites
- Magnetospheric Radio Emission from Extrasolar Giant Planets: The Role of the Host Stars
- Atmosphere Expansion and Mass Loss of Close-Orbit Giant Exoplanets heated by Stellar XUV. II. Effects of Planetary Magnetic Field, Structuring of inner Magnetosphere
- Detecting the oldest geodynamo and attendant shielding from the solar wind: Implications for habitability
- The search for radio emission from the exoplanetary systems 55 Cancri, Andromedae, and Boötis using LOFAR beam-formed observations
- Magnetic field, differential rotation and activity of the hot-Jupiter hosting star HD 179949
- A small survey of the magnetic fields of planet-host stars
- Colliding Planetary and Stellar Winds: Charge Exchange and Transit Spectroscopy in Neutral Hydrogen
- Magnetohydrodynamic Simulations of Hot Jupiter Upper Atmospheres
- Confirmation of WASP-107b's extended Helium atmosphere with Keck II/NIRSPEC
- Optical hydrogen absorption consistent with a thin bow shock leading the hot Jupiter HD 189733b
- Planet-induced radio emission from the coronae of M dwarfs: the case of Prox Cen and AU Mic
- Tidally-Induced Radius Inflation of Sub-Neptunes
- Evidence for a lost population of close-in exoplanets
- Radio emission from exoplanets: the role of the stellar coronal density and magnetic field strength
- Saturation of Stellar Winds from Young Suns
- Morphology of Hydrodynamic Winds: A Study of Planetary Winds in Stellar Environments
- Exoplanet Transit Variability: Bow Shocks and Winds Around HD 189733b
- Planetary Magnetic Field Control of Ion Escape from Weakly Magnetized Planets
- Effect of the stellar spin history on the tidal evolution of close-in planets
- Stellar wind effects on the atmospheres of close-in giants: a possible reduction in escape instead of increased erosion
- Simulations of Winds of Weak-Lined T Tauri Stars. II.: The Effects of a Tilted Magnetosphere and Planetary Interactions
- Transit Variability in Bow Shock-Hosting Planets
- Global 3D hydrodynamic modeling of in-transit Lyα absorption of GJ436b
- Coherent radio bursts from known M-dwarf planet host YZ Ceti
- One year of AU Mic with HARPS: II -- stellar activity and star-planet interaction
- The Influence of Thermal Evolution in the Magnetic Protection of Terrestrial Planets
- A coordinated optical and X-ray spectroscopic campaign on HD179949: searching for planet-induced chromospheric and coronal activity
- Mass Loss Rates from Coronal Mass Ejections: A Predictive Theoretical Model for Solar-Type Stars
- Exoplanets as probes of the winds of host stars: the case of the M dwarf GJ 436
- Star-planet interactions: I. Stellar rotation and planetary orbits
- Magnetised winds and their influence in the escaping upper atmosphere of HD 209458b
- Three-dimensional Numerical Simulations of Magnetized Winds of Solar-Like Stars
- Predicting radio emission from the newborn hot Jupiter V830 Tau and its host star
- FUV variability of HD 189733. Is the star accreting material from its hot Jupiter?
- Modeling magnesium escape from HD209458b atmosphere
- The Influence of Coronal Mass Ejections on the Mass-loss Rates of Hot-Jupiters
- The Dynamics of Stellar Coronae Harboring Hot-jupiters II. A Space Weather Event on A Hot-jupiter
- On the sensitivity of extrasolar mass-loss rate ranges: HD 209458b a case study
- Evolution of atmospheric escape in close-in giant planets and their associated Ly and H transit predictions
- Coupling thermal evolution of planets and hydrodynamic atmospheric escape in MESA
- The relation between stellar magnetic field geometry and chromospheric activity cycles II: The rapid 120 day magnetic cycle of Tau Bootis
- The role of rotation in the evolution of dynamo generated magnetic fields in Super Earths
- The JADE code: Coupling secular exoplanetary dynamics and photo-evaporation
- 3D Aeronomy Modeling of Close-in Exoplanets
- Mass, energy, and momentum capture from stellar winds by magnetized and unmagnetized planets: implications for atmospheric erosion and habitability
- Hot planetary winds near a star: dynamics, wind-wind interactions, and observational signatures
- Radio Observations of HD 80606 Near Planetary Periastron
- The dichotomy of atmospheric escape in AU Mic b
- The Effects of Magnetic Fields on Observational Signatures of Atmospheric Escape in Exoplanets: Double Tail Structures
- MOVES I. The evolving magnetic field of the planet-hosting star HD189733
- The impact of intrinsic magnetic field on the absorption signatures of elements probing the upper atmosphere of HD209458b
- Axisymmetric Simulations of Hot Jupiter-Stellar Wind Hydrodynamic Interaction
- Towards rapid transient identification and characterization of kilonovae
- Characterisation of the HD219134 multi-planet system II. Stellar-wind sputtered exospheres in rocky planets b & c
- Evidence of magnetic star-planet interactions in the HD 189733 system from orbitally-phased Ca II K variations
- MOVES III. Simultaneous X-ray and ultraviolet observations unveiling the variable environment of the hot Jupiter HD 189733b
- Planet-Induced Emission Enhancements in HD 179949: Results from McDonald Observations
- A Blind Search for Magnetospheric Emissions from Planetary Companions to Nearby Solar-type Stars
- MOVES II. Tuning in to the radio environment of HD189733b
- Effects of Radiation Pressure on the Evaporative Wind of HD 209458b
- MOVES IV. Modelling the influence of stellar XUV-flux, cosmic rays, and stellar energetic particles on the atmospheric composition of the hot Jupiter HD 189733b
- Time-variable electromagnetic star-planet interaction: The TRAPPIST-1 system as an exemplary case
- The Star Cluster System in the Nearby Starburst Galaxy M82
- GJ 436b and the stellar wind interaction: simulations constraints using Ly and H transits
- Generation of a Circumstellar Gas Disk by Hot Jupiter WASP-12b
- How does the mass and activity history of the host star affect the population of low-mass planets?
- Atmospheric mass loss and evolution of short-period exoplanets: the examples of CoRoT-7b and Kepler-10b
- Three-dimensional hydrodynamic simulations of the upper atmosphere of Men c: comparison with Ly transit observations
- Modeling the Ly transit absorption of the hot Jupiter HD 189733b
- Hydrodynamical interaction of stellar and planetary winds: effects of charge exchange and radiation pressure on the observed Ly absorption
- The space weather around the exoplanet GJ 436 b. II. Stellar wind-exoplanet interactions
- Hot Jupiter accretion: 3D MHD simulations of star-planet wind interaction
- Hunting for exoplanets via magnetic star-planet interactions: geometrical considerations for radio emission
- On the origin of the non-detection of metastable HeI in the upper atmosphere of the hot Jupiter WASP-80b
- MOVES V. Modelling star-planet magnetic interactions of HD 189733
- Effect of the exoplanet magnetic field topology on its magnetospheric radio emission
- Influence of the Sun-like magnetic cycle on exoplanetary atmospheric escape
- Radio masers on WX UMa: hints of a Neptune-sized planet, or magnetospheric reconnection?
- Photoevaporative Flows From Exoplanet Atmospheres: A 3-D Radiative Hydrodynamic Parameter Study
- Effect of a magnetosphere compression on Jovian radio emissions: in situ case study using Juno data
- Flares, Rotation, Activity Cycles and a Magnetic Star-Planet Interaction Hypothesis for the Far Ultraviolet Emission of GJ 436
- Time evolution of magnetic activity cycles in young suns: The curious case of kappa Ceti
- Follow-up LOFAR observations of the Boötis exoplanetary system
- The Linkage between the Core Mass and the Magnetic Field of an Extrasolar Giant Planet from Future Radio Observations
- Large closed-field corona of WX UMa evidenced from radio observations
- The key impact of the host star's rotational history on the evolution of TOI-849b
- Space environment and magnetospheric Poynting fluxes of the exoplanet Boötis b
- Magnetic Field Evolution of Hot Exoplanets
- Observability of hydrogen-rich exospheres in Earth-like exoplanets
- Atmospheric escape in hot Jupiters under sub-Alfvénic interactions
- Effects of Charge Exchange on the Evaporative Wind of HD 209458b