Results 11 to 20 of about 3,680 (199)

From Starspots to Stellar Coronal Mass Ejections—Revisiting Empirical Stellar Relations [PDF]

open access: greenThe Astrophysical Journal, 2021
Abstract Upcoming missions, including the James Webb Space Telescope, will soon characterize the atmospheres of terrestrial-type exoplanets in habitable zones around cool K- and M-type stars by searching for atmospheric biosignatures. Recent observations suggest that the ionizing radiation and particle environment from active cool planet
Konstantin Herbst   +3 more
  +6 more sources

Hunting for stellar coronal mass ejections [PDF]

open access: green, 2022
Solar flares are often accompanied by filament/prominence eruptions, sometimes leading to coronal mass ejections (CMEs). By analogy, we expect that stellar flares are also associated with stellar CMEs whose properties are essential to know the impact on exoplanet habitability.
Kosuke Namekata   +5 more
openalex   +3 more sources

Observations and simulations of stellar coronal mass ejections [PDF]

open access: bronzeSCIENTIA SINICA Technologica, 2022
Hui Tian   +7 more
openalex   +2 more sources

Radio burst from a stellar coronal mass ejection [PDF]

open access: greenNature
27 pages, 4 figures, 1 table. Accepted to Nature (embargo date lifted 1600 UTC 12 November 2025)
J. R. Callingham   +17 more
  +6 more sources

Simulating the Space Weather in the AU Mic System: Stellar Winds and Extreme Coronal Mass Ejections [PDF]

open access: goldThe Astrophysical Journal, 2022
Abstract Two close-in planets have been recently found around the M-dwarf flare star AU Microscopii (AU Mic). These Neptune-sized planets (AU Mic b and c) seem to be located very close to the so-called “evaporation valley” in the exoplanet population, making this system an important target for studying atmospheric loss on exoplanets ...
Julián D. Alvarado‐Gómez   +9 more
openalex   +5 more sources

Stellar coronal mass ejections – II. Constraints from spectroscopic observations [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2020
ABSTRACT Detections of stellar coronal mass ejections (CMEs) are still rare. Observations of strong Balmer line asymmetries during flare events have been interpreted as being caused by CMEs. Here, we aim to estimate the maximum possible Balmer line fluxes expected from CMEs to infer their detectability in spectroscopic observations ...
P. Odert   +3 more
openalex   +4 more sources

Stellar coronal mass ejections – I. Estimating occurrence frequencies and mass-loss rates [PDF]

open access: greenMonthly Notices of the Royal Astronomical Society, 2017
18 pages, 8 figures, 1 table, accepted to ...
P. Odert   +3 more
openalex   +4 more sources

Constraining the Physical Properties of Stellar Coronal Mass Ejections with Coronal Dimming: Application to Far-ultraviolet Data of ϵ Eridani [PDF]

open access: goldThe Astrophysical Journal, 2022
Abstract Coronal mass ejections (CMEs) are a prominent contributor to solar system space weather and might have impacted the Sun’s early angular momentum evolution. A signal diagnostic of CMEs on the Sun is coronal dimming: a drop in coronal emission, tied to the mass of the CME, that is the direct result of removing emitting plasma from
R. O. Parke Loyd   +11 more
openalex   +3 more sources

Coronal dimming as a proxy for stellar coronal mass ejections [PDF]

open access: greenProceedings of the International Astronomical Union, 2019
AbstractSolar coronal dimmings have been observed extensively in the past two decades and are believed to have close association with coronal mass ejections (CMEs). Recent study found that coronal dimming is the only signature that could differentiate powerful flares that have CMEs from those that do not.
M. Jin   +8 more
openalex   +4 more sources

First detections of stellar coronal mass ejections through coronal dimmings [PDF]

open access: gold, 2020
Abstract The authors have requested that this preprint be removed from Research Square.
Astrid Veronig   +5 more
openalex   +2 more sources

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