Results 31 to 40 of about 1,545,217 (255)

Analytical Solution of the Hanle Effect in View of CLASP and Future Polarimetric Solar Studies

Atoms, 2019
We have solved a problem of the Hanle effect for the hydrogen Lyman- α line in an intuitive and straightforward way. The Stokes parameters amid an anisotropic radiation field and a magnetic field are derived as an analytical formula which ...
Motoshi Goto, Ryohko Ishikawa, Yusuke Iida, Saku Tsuneta   +3 more
doaj   +1 more source

Introduction to special issue on high speed solar wind streams and geospace interactions (HSS-GI) [PDF]

, 2009
This special issue of the Journal of Atmospheric and Solar-Terrestrial Physics is devoted to research into high speed solar wind streams (HSSs) and their effects on the region of near-Earth space commonly known as ‘geospace’.
Morley, S.K., Denton, M.H, Horne, Richard B, Borovsky, J.E., Tsurutani, B.T., Denton, M.H., Horne, R.B., McPherron, R.L.   +7 more
core   +1 more source

Vorticity in the solar photosphere [PDF]

, 2010
Aims. We use magnetic and non-magnetic 3D numerical simulations of solar granulation and G-band radiative diagnostics from the resulting models to analyse the generation of small-scale vortex motions in the solar photosphere.Methods.
Shelyag, S., Keys, P.; id_orcid, Mathioudakis, Mihalis, Mathioudakis, M., Keenan, Francis, Shelyag, Sergiy, Keys, Peter, M. Mathioudakis, F. P. Keenan, Keenan, F. P., S. Shelyag, P. Keys   +11 more
core   +1 more source

Radiation Dosimetry Estimations in the Venusian Atmosphere during Different Periods of Solar Activity [PDF]

, 2022
The new space era has expanded the exploration of other planets of our solar system. In this work, radiation quantities are estimated in the Venusian atmosphere using the software tool DYASTIMA/DYASTIMA-R, such as the energy deposit and the ambient dose ...
Stassinakis, A.N., Plainaki, C., Helen Mavromichalaki, Anastasios Kanellakopoulos, Pavlos Paschalis, Kanellakopoulos, A., Crosby, N., Pantelis Karaiskos, Mavromichalaki, H., Norma Crosby, Christina Plainaki, Paschalis, P., Anastasia Tezari, Dierckxsens, M., Mark Dierckxsens, Karaiskos, P., Argyris N. Stassinakis, Tezari, A., Mavromichalaki, Helen, Stassinakis, Argyris N., Tezari, Anastasia, Crosby, Norma, Kanellakopoulos, Anastasios, Karaiskos, Pantelis, Dierckxsens, Mark, Paschalis, Pavlos, Plainaki, Christina   +26 more
core   +1 more source

Propagation and damping of MHD waves in the solar atmosphere [PDF]

, 2015
Quasi-periodic disturbances have been observed in the outer solar atmosphere for many years. Although first interpreted as upflows (Schrijver et al.
Kiddie, Greg
core   +2 more sources

Ultraviolet and extreme-ultraviolet emissions at the flare footpoints observed by atmosphere imaging assembly [PDF]

, 2013
A solar flare is composed of impulsive energy release events by magnetic reconnection, which forms and heats flare loops. Recent studies have revealed a two-phase evolution pattern of UV 1600 Å emission at the feet of these loops: a rapid pulse lasting ...
Klimchuk, J.A., Longcope, D.W., Liu, W.-J., Sturrock, Z., Qiu, J.   +4 more
core   +1 more source

Mesoscale Convective Systems and Extreme Precipitation on the West African Coast Linked to Ocean–Atmosphere Conditions during the Monsoon Period in the Gulf of Guinea

Atmosphere
This study investigates the importance of convective systems for extreme rainfall along the northern coast of the Gulf of Guinea (GG) and their relationship with atmospheric and oceanic conditions.
Sandrine Djakouré, Joël Amouin, Kouassi Yves Kouadio, Modeste Kacou   +3 more
doaj   +1 more source

Evaluation of High Resolution WRF Solar

Energies, 2023
The amount of solar irradiation that reaches Earth’s surface is a key quantity of solar energy research and is difficult to predict, because it is directly affected by the changing constituents of the atmosphere.
Jayesh Thaker, Robert Höller
doaj   +1 more source

The propagation and damping of slow magnetoacoustic waves in the solar atmosphere [PDF]

, 2012
The propagation and damping of slow magnetoacoustic waves in the solar atmosphere is investigated, with particular emphasis placed on waves with periodicities of five minutes. The basic model of a uniform temperature loop is extended by the addition of
Owen, Nicholas Robert
core   +2 more sources

Solar Flare Ribbon Fronts. I. Constraining Flare Energy Deposition with IRIS Spectroscopy

The Astrophysical Journal, 2023
Spectral lines formed at lower atmospheric layers show peculiar profiles at the “leading edge” of ribbons during solar flares. In particular, increased absorption of the BBSO/GST He i λ 10830 line, as well as broad and centrally reversed profiles in the ...
Vanessa Polito, Graham S. Kerr, Yan Xu, Viacheslav M. Sadykov, Juraj Lorincik   +4 more
doaj   +1 more source