Results 131 to 140 of about 904 (176)

Flare-productive active regions. [PDF]

open access: yesLiving Rev Sol Phys, 2019
Toriumi S, Wang H.
europepmc   +1 more source

Exo-Geoscience Perspectives Beyond Habitability. [PDF]

open access: yesSpace Sci Rev
Spohn T   +7 more
europepmc   +1 more source

Exoplanet Biosignatures: A Framework for Their Assessment. [PDF]

open access: yesAstrobiology, 2018
Catling DC   +9 more
europepmc   +1 more source

Reading the Sky. From Starspots to Spotting Stars

open access: yesNordina: Nordic Studies in Science Education, 2016
Urban Eriksson
doaj   +1 more source

Starspots [PDF]

open access: yesAstronomy and Astrophysics Review, 2009
Starspots are created by local magnetic fields on the surfaces of stars, just as sunspots. Their fields are strong enough to suppress the overturning convective motion and thus block or redirect the flow of energy from the stellar interior outwards to the surface and consequently appear as locally cool and therefore dark regions against an otherwise ...
K G Strassmeier, Strassmeier Klaus G
exaly   +4 more sources

Torus-stable zone above starspots [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Whilst intense solar flares are almost always accompanied by a coronal mass ejection (CME), reports on stellar CMEs are rare, despite the frequent detection of stellar ‘super flares’. The torus instability of magnetic flux ropes is believed to be one of the main driving mechanisms of solar CMEs.
T Torok, Marc L Derosa, Torok Tibor
exaly   +4 more sources

Differential rotation of Kepler-71 via transit photometry mapping of faculae and starspots [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2019
Knowledge of dynamo evolution in solar-type stars is limited by the difficulty of using active region monitoring to measure stellar differential rotation, a key probe of stellar dynamo physics.
S M Zaleski, S C Marsden, B D Carter
exaly   +2 more sources

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