Results 131 to 140 of about 1,347 (178)

Computational challenges in exoplanet atmospheric retrieval. [PDF]

Living Rev Comput Astrophys
K Barstow J, Welbanks L.
europepmc   +1 more source

Magnetic activity and spectral behavior of RS CVn binary system (IM Pegasi) in the ultraviolet. [PDF]

Sci Rep
Sanad MR, Rahman HIA, Badawy WA.
europepmc   +1 more source

The Sun-Earth connect 3: lessons from the periodicities of deep time influencing sea-level change and marine extinctions in the geological record. [PDF]

Springerplus, 2015
Baker RG, Flood PG.
europepmc   +1 more source

A new formulation of the starspot model, and the consequences of starspot structure

The Astrophysical Journal, 1987
openaire   +1 more source

Astrospheres and Solar-like Stellar Winds. [PDF]

Living Rev Sol Phys, 2004
Wood BE.
europepmc   +1 more source

Reading the Sky. From Starspots to Spotting Stars

Nordina: Nordic Studies in Science Education, 2016
Urban Eriksson
doaj   +1 more source

Stellar flares in TESS photometry

Stellar magnetic activity causes different observable phenomena on the surface of a star, including starspots, bright regions, and even explosive events, such as flares and coronal mass ejections.
Rintamäki, Emilia
core  

Starspots [PDF]

Astronomy 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 ...
Klaus G. Strassmeier
exaly   +4 more sources

Starspots and Photometric Noise on Observed Minus Calculated (O–C) Diagrams

Astronomy and Astrophysics, 2002
The effects of starspots on the O–C diagrams of eclipsing binaries are investigated, with a special emphasis on contact binaries. It is shown that starspots modulate the O–C differences in a fundamentally different way than real orbital period variations.
A Kalimeris, P Rovithis, H Rovithis-Livaniou   +2 more
exaly   +3 more sources

Starspots and Active Regions on the Emission Red Dwarf Star

Astronomy and Astrophysics, 2002
The quasi-simultaneous electrophotometric, polarimetric and spectroscopic observations of the single active spotted star $LQ~Hya$ are presented. The photometric variability of the star can be described completely by a zonal starspots model.
O V Kozlova, I Yu Alekseev
exaly   +2 more sources