Results 91 to 100 of about 318 (133)

Upper Atmosphere Dynamics and Drivers of Volatiles Loss from Terrestrial-Type (Exo)Planets. [PDF]

Space Sci Rev
Kubyshkina D, Way MJ, Dandouras I, Lammer H, Lanza AF, Lingam M, Nakamura R, Persson M, Scherf M, Seki K.   +9 more
europepmc   +1 more source

Coronal dimmings and what they tell us about solar and stellar coronal mass ejections. [PDF]

Living Rev Sol Phys
Veronig AM, Dissauer K, Kliem B, Downs C, Hudson HS, Jin M, Osten R, Podladchikova T, Prasad A, Qiu J, Thompson B, Tian H, Vourlidas A.   +12 more
europepmc   +1 more source

IMAP's Role in Understanding Particle Injection and Energization Throughout the Heliosphere. [PDF]

Space Sci Rev
Cohen CMS, Alterman BL, Baker DN, Bruno A, Bzowski M, Christian ER, Cohen IJ, Dalla S, Dayeh MA, Desai MI, Elliott HA, Giacalone J, Gkioulidou M, Guo F, Horbury T, Kanekal SG, Kowalska-Leszczyńska I, Lee CO, Livadiotis GI, Luhmann JG, Matthaeus WH, McComas DJ, Mitchell JG, Moebius E, Rankin J, Richardson JD, Schwadron NA, Skoug R, Turner D, Zank G, Zirnstein EJ.   +30 more
europepmc   +1 more source

Direct imaging of magnetohydrodynamic wave mode conversion near a 3D null point on the sun. [PDF]

Nat Commun
Kumar P, Nakariakov VM, Karpen JT, Cho KS.   +3 more
europepmc   +1 more source

Magnetic star-planet interaction in the young exoplanet system DS Tucanae Ab

Santos Ld, Owen J, Duvvuri G, Loyd ROP, Vidotto A, Presa A, Bourrier V, King G, Airapetian V, Ehrenreich D, France K, Lendl M, Lothringer J, Nielsen L.   +13 more
europepmc   +1 more source

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Oxygen in the Sun's Chromosphere

Nature, 1935
PHOTOGRAPHS which I have taken at the Kodaikanal Observatory show that oxygen is a normal constituent of the sun's chromosphere, and is probably in great abundance.
openaire   +3 more sources

Sounding the Sun's Chromosphere

The Astrophysical Journal, 1997
Time-distance analysis of solar acoustic waves with frequencies above the nominal atmospheric acoustic cutoff frequency (~5.3 mHz) shows partial reflection of the waves at both the Sun's photosphere and a layer located higher in the atmosphere. This result supports recent reports of chromospheric modes.
S. M. Jefferies, Y. Osaki, H. Shibahashi, J. W. Harvey, S. D'Silva, T. L. Duvall, Jr.   +5 more
openaire   +1 more source

Does the Sun Have a Full-Time Chromosphere?

The Astrophysical Journal, 1999
The successful modeling of the dynamics of H2v bright points in the nonmagnetic chromosphere by Carlsson & Stein gave as a by-product a part-time chromosphere lacking the persistent outward temperature increase of time-average empirical models, which is needed to explain observations of UV emission lines and continua.
Wolfgang Kalkofen, Peter Ulmschneider, Eugene H. Avrett   +2 more
openaire   +1 more source

Similarities between chromospheric and photospheric quiet-Sun magnetograms

Solar Physics, 2000
Simultaneous observations of chromospheric (Hβ) and photospheric (Fe i λ5324.19 A) magnetograms in quiet solar regions enable us to study the spatial configuration of the magnetic field in the solar atmosphere. With the typical spatial resolution of the Huairou magnetograph, the photospheric and chromospheric magnetic structures of the quiet Sun ...
Hongqi Zhang, Mei Zhang
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Physical Processes in the Lower Chromosphere of the Sun

Plasma Physics Reports, 2020
A specificity of the boundary between the photosphere and the chromosphere of the Sun consists in considerable acceleration of plasma spicules above this boundary and appearance of wave motions (predominantly Alfven waves). Analytical solution to the equations of magnetic hydrodynamics is constructed in the vicinity of this boundary from the ...
I. A. Molotkov, N. A. Ryabova
openaire   +1 more source