Results 11 to 20 of about 1,371 (185)
The photosphere of Pleione [PDF]
Symposium - International Astronomical Union, 1994 In this paper we report results concerning the photospheric Balmer discontinuity of Pleione. They show that after the Be → Be-shell phase transitions, the stellar photosphere keeps its characteristics unchanged.
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Cheap, accessible, and virtual experiences as tools for immersive study: a proof of concept study
Research in Learning Technology, 2020 Virtual and augmented reality technology is becoming more commonly available within a plethora of environments in which we exist, including educational environments.
Steven L. Rogers
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Photospheric magnetic vortex structures [PDF]
Annales Geophysicae, 2011 Using direct numerical magneto-hydrodynamic (MHD) simulations, we demonstrate the evidence of two physically different types of vortex motions in the solar photosphere.
S. Shelyag +4 more
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Signatures of Magnetic Flux Ropes in the Low Solar Atmosphere Observed in High Resolution
Frontiers in Astronomy and Space Sciences, 2019 Magnetic flux ropes (MFRs) are important physical features closely related to solar eruptive activities with potential space weather consequences. Studying MFRs in the low solar atmosphere can shed light on their origin and subsequent magnetic structural
Haimin Wang +3 more
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Recent Results for Widths of Lines Important in the Spectra of Cool Stars
Open Astronomy, 2011 The broadening of spectral lines by neutral perturbers is an important factor in the interpretation of the observed spectra of cool stars and is often included in the analysis by using a simple van der Waals formula. Detailed calculations are carried out
Peach G.
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Solar Physics From Unconventional Viewpoints
Frontiers in Astronomy and Space Sciences, 2018 We explore new opportunities for solar physics that could be realized by future missions providing sustained observations from vantage points away from the Sun-Earth line.
Sarah E. Gibson +8 more
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Photospheric magnetoconvection [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractMagnetic fields, convective motions and radiative energy transport all strongly influence each other in the solar photosphere. Attempts to understand, at a quantitative level, the diverse phenomona seen in the photosphere have relied on increasingly powerful computers since the 1980's.
Cameron, R., Schüssler, M., Vögler, A.
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Symposium - International Astronomical Union, 1987 The temperature stratifications and the emitted fluxes of Mira model photospheres based upon the extended density distribution of a pulsation model differ substantially from those of conventional model photospheres based upon a hydrostatic density distribution.
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Diminishing activity of recent solar cycles (22–24) and their impact on geospace
Journal of Space Weather and Space Climate, 2019 This study examines the variation of different energies linked with the Sun and the Earth’s magnetosphere-ionosphere systems for solar cycles (SCs) 22–24 for which the gradual decrease in the solar activity is noticed.
Kakad Bharati +3 more
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Equation of state for solar near-surface convection [PDF]
Annales Geophysicae, 2015 Numerical 3-D radiative hydrodynamical simulations are the main tool for the analysis of the interface between the solar convection zone and the photosphere. The equation of state is one of the necessary ingredients of these simulations.
N. Vitas +4 more
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