231 citations · 1.6k across the 58 of their papers we have counts for
16 papers · 1 filter
Ohmic heating in the upper atmosphere of hot exoplanets The influence of a time-varying magnetic field
A. Strugarek, A. García Muñoz, A. S. Brun +1
Exoplanets on close-in orbit are subject to intense X-ray and ultraviolet (XUV) irradiation from their star. Their atmosphere therefore heats up, sometimes to the point where it th…
On Earth's habitability over the Sun's main-sequence history: joint influence of space weather and Earth's magnetic field evolution
J. Varela, A. S. Brun, A. Strugarek +3
The aim of this study is to analyze the Earth habitability with respect to the direct exposition of the Earth atmosphere to the solar wind along the Suns evolution on the main sequ…
Stellar spectral-type (mass) dependence of the dearth of close-in planets around fast-rotating stars. Architecture of Kepler confirmed single-exoplanet systems compared to star-planet evolution models
R. A. García, C. Gourvès, A. R. G. Santos +8
In 2013 a dearth of close-in planets around fast-rotating host stars was found using statistical tests on Kepler data. The addition of more Kepler and Transiting Exoplanet Survey S…
Self-consistent simulation of photoelectrons in exoplanet winds: Faster ionisation and weaker mass loss rates
Alexande Gillet, Antonio Garcia Munoz, Antoine Strugarek
Planetary mass loss is governed by several physical mechanisms, including photoionisation that may impact the evolution of the atmosphere. Stellar radiation energy deposited as hea…
Investigating the visible phase-curve variability of 55 Cnc e
E. A. Meier Valdés, B. M. Morris, B. -O. Demory +87
55 Cnc e is an ultra-short period super-Earth transiting a Sun-like star. Previous observations in the optical range detected a time-variable flux modulation that is phased with th…
MHD study of extreme space weather conditions for exoplanets with Earth-like magnetospheres: On habitability conditions and radio-emission
J. Varela, A. S. Brun, P. Zarka +3
The present study aims at characterizing the habitability conditions of exoplanets with an Earth-like magnetosphere inside the habitable zone of M stars and F stars like tau Boo, c…
Spin evolution of Venus-like planets subjected to gravitational and thermal tides
Alexandre Revol, Émeline Bolmont, Gabriel Tobie +5
The arrival of powerful instruments will provide valuable data for the characterization of rocky exoplanets. It is then crucial to accurately model the dynamical state of exoplanet…
A Volumetric Study of Flux Transfer Events at the Dayside Magnetopause
Arghyadeep Paul, Bhargav Vaidya, Antoine Strugarek
Localized magnetic reconnection at the dayside magnetopause leads to the production of Flux Transfer Events (FTEs). The magnetic field within the FTEs exhibit complex helical flux-…
MHD study of planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications
J. Varela, A. S. Brun, A. Strugarek +3
Context: The stellar wind and the interplanetary magnetic field modify the topology of planetary magnetospheres. Consequently, the hazardous effect of the direct exposition to the…
Detecting volcanically produced tori along orbits of exoplanets using UV spectroscopy
Kristina G. Kislyakova, Luca Fossati, Denis Shulyak +17
We suggest to use the Hubble Space Telescople (HST) follow-up observations of the TESS targets for detecting possible plasma tori along the orbits of exoplanets orbiting M dwarfs.…
Chasing star-planet magnetic interactions: the case of Kepler-78
A. Strugarek, A. S. Brun, J. -F. Donati +2
Observational evidence of star-planet magnetic interactions (SPMI) in compact exo-systems have been looked for in the past decades. Indeed planets in close-in orbit can be magnetic…
Reconstructing Extreme Space Weather from Planet Hosting Stars
V. S. Airapetian, V. Adibekyan, M. Ansdell +80
The field of exoplanetary science is making rapid progress both in statistical studies of exoplanet properties as well as in individual characterization. As space missions provide…
Exoplanet host-star properties: the active environment of exoplanets
John P. Pye, David Barrado, Rafael A. Garcia +12
The primary objectives of the ExoplANETS-A project are to: establish new knowledge on exoplanet atmospheres; establish new insight on influence of the host star on the planet atmos…
Models of Star-Planet Magnetic Interaction
A. Strugarek
Magnetic interactions between a planet and its environment are known to lead to phenomena such as aurorae and shocks in the solar system. The large number of close-in exoplanets th…
Assessing magnetic torques and energy fluxes in close-in star-planet systems
A Strugarek
Planets in close-in orbit interact with the magnetized wind of their hosting star. This magnetic interaction was proposed to be a source for enhanced emissions in the chromosphere…
Magnetic games between a planet and its host star: the key role of topology
A. Strugarek, A. S. Brun, S. P. Matt +1
Magnetic interactions between a star and a close-in planet are postulated to be a source of enhanced emissions and to play a role in the secular evolution of the orbital system. Cl…