Results 121 to 130 of about 2,749 (159)
The effect of a strong stellar flare on the atmospheric chemistry of an earth-like planet orbiting an M dwarf. [PDF]
Astrobiology, 2010 Segura A +4 more
europepmc +1 more source
Astrospheres and Solar-like Stellar Winds. [PDF]
Living Rev Sol Phys, 2004 Wood BE.
europepmc +1 more source
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 Strassmeier
exaly +4 more sources
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KIC 5359678: a detached eclipsing binary with starspots
Monthly Notices of the Royal Astronomical Society, 2021We study the detached eclipsing binary, KIC 5359678, with starspot modulation using the high-quality Kepler photometry and LAMOST spectroscopy. The phoebe model, optimal for this binary, reveals that this system is a circular detached binary, composed ...
Hubiao Niu, Jianning Fu, Yang Pan
exaly +2 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 +2 more
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Distribution and evolution of starspots on the RS CVn binary II Pegasi in 2004 [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 We present Doppler images of RS CVn-type binary II Peg based on two data sets obtained in 2004 February and November. In order to improve signal-to-noise ratio and reliability,we apply least-squares deconvolution technique to calculate average profiles ...
Yue Xiang, J R Barnes
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On the temperature of starspots
2022Таврический астрофизический журнал, Выпуск 3 (2) 2022, Pages 27 ...
Alekseev, I.Yu., Gershberg, R.E.
openaire +1 more source
Starspots and Magnetism: Testing the Activity Paradigm in the Pleiades and M67
, 2022We measure starspot filling fractions for 240 stars in the Pleiades and M67 open star clusters using APOGEE high-resolution H-band spectra. For this work we developed a modified spectroscopic pipeline which solves for starspot filling fraction and ...
Lyra Cao, M. Pinsonneault
semanticscholar +1 more source
Properties of starspots on CoRoT-2 [PDF]
Astronomy and Astrophysics, 2010 As a planet eclipses its parent star, a dark spot on the surface of the star may be occulted, causing a detectable variation in the light curve. A total of 77 consecutive transit light curves of CoRoT-2 were observed with a high temporal resolution of 32 s, corresponding to an uninterrupted period of 134 days. By analyzing small intensity variations in
Antonino Francesco Lanza +2 more
exaly +3 more sources