Results 31 to 40 of about 309 (172)
Effect of stellar flares and coronal mass ejections on the atmospheric escape from hot Jupiters [PDF]
Proceedings of the International Astronomical Union, 2021 AbstractSpectral observations in the Ly-α line have shown that atmospheric escape is variable and for the exoplanet HD189733b, the atmospheric evaporation goes from undetected to enhanced evaporation in a 1.5 years interval. To understand the temporal variation in the atmospheric escape, we investigate the effect of flares, winds, and CMEs on the ...
Gopal Hazra +4 more
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Indications of stellar coronal mass ejections through coronal dimmings [PDF]
Nature Astronomy, 2021 Coronal mass ejections (CMEs) are huge expulsions of magnetized matter from the Sun and stars, traversing space with speeds of millions of kilometers per hour. Solar CMEs can cause severe space weather disturbances and consumer power outages on Earth, whereas stellar CMEs may even pose a hazard to the habitability of exoplanets.
Astrid M. Veronig +5 more
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Magnetic interaction of stellar coronal mass ejections with close-in exoplanets: implication on planetary mass loss and Ly-$α$ transits [PDF]
Monthly Notices of the Royal Astronomical SocietyABSTRACT Coronal mass ejections (CMEs) erupting from the host star are expected to affect the atmospheric erosion processes of planets. For planets with a magnetosphere, the embedded magnetic field in the CMEs is thought to be the most important parameter to affect planetary mass-loss. In this work, we investigate the effect of different
Gopal Hazra +4 more
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First detections of stellar coronal mass ejections through coronal dimmings [PDF]
, 2020 Abstract The authors have requested that this preprint be removed from Research Square.
Astrid Veronig +5 more
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Stellar Winds, Dead Zones, and Coronal Mass Ejections [PDF]
The Astrophysical Journal, 2000 Axisymmetric stellar wind solutions are presented, obtained by numerically solving the ideal magnetohydrodynamic (MHD) equations. Stationary solutions are critically analysed using the knowledge of the flux functions. These flux functions enter in the general variational principle governing all axisymmetric stationary ideal MHD equilibria.
R. Keppens, J. P. Goedbloed
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Hunting for Stellar Coronal Mass Ejections [PDF]
Proceedings of the International Astronomical Union, 2016 AbstractCoronal mass ejections (CMEs) are explosive events that occur basically daily on the Sun. It is thought that these events play a crucial role in the angular momentum and mass loss of late-type stars, and also shape the environment in which planets form and live.
Heidi Korhonen +4 more
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The Search for Stellar Coronal Mass Ejections [PDF]
, 2017 Coronal mass ejections (CMEs) may dramatically impact habitability and atmospheric composition of planets around magnetically active stars, including young solar analogs and many M dwarfs. Theoretical predictions of such effects are limited by the lack of observations of stellar CMEs. This thesis addresses this gap through a search for the spectral and
Jacqueline Villadsen
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Solar and Stellar Coronal Mass Ejections - a review of the Cool Stars 21 splinter session
, 2023 Coronal mass ejections (CMEs) are the most energetic phenomena related to magnetic activity and, by impacting the interplanetary space, they can be the source of severe planetary disturbances. Solar CMEs and their sources, such as flares and filament/prominence eruptions, have been intensively observed and studied over decades.
Iulia Chifu +3 more
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Observations and simulations of stellar coronal mass ejections [PDF]
SCIENTIA SINICA Technologica, 2022 Hui Tian +7 more
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Solar Coronal Mass Ejections Plasma Diagnostics Expressed as Potential Stellar CME Signatures [PDF]
The Astronomical Journal, 2022 Abstract Solar coronal mass ejections (CMEs) have a strong association with solar flares that is not fully understood. This characteristic of our Sun’s magnetic activity may also occur on other stars, but the lack of successfully detected stellar CMEs makes it difficult to perform statistical studies that might show a similar association
Maurice L. Wilson, J. C. Raymond
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