Results 31 to 40 of about 434,940 (199)
Large Scale Soft X-ray Loops And Their Magnetic Chirality In Both Hemispheres
, 2010 The magnetic chirality in solar atmosphere has been studied based on the soft X-ray and magnetic field observations. It is found that some of large-scale twisted soft X-ray loop systems occur for several months in the solar atmosphere, before the ...
Gao, Yu +5 more
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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 +4 more
doaj +1 more source
Existence of Purely Alvén Waves in Magnetic Flux Tubes with Arbitrary Cross-Sections
Physics, 2022 We study linear torsional Alfvén waves in a magnetic flux tube with an arbitrary cross-section. We assume that the equilibrium magnetic field is propagating in the z-direction in Cartesian coordinates x,y, and z.
Michael S. Ruderman +1 more
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Determining solar effects in Neptune’s atmosphere [PDF]
Nature Communications, 2016 AbstractLong-duration observations of Neptune’s brightness at two visible wavelengths provide a disk-averaged estimate of its atmospheric aerosol. Brightness variations were previously associated with the 11-year solar cycle, through solar-modulated mechanisms linked with either ultraviolet or galactic cosmic ray (GCR) effects on atmospheric particles.
Aplin, K. L., Harrison, R. G.
openaire +6 more sources
The Astrophysical Journal, 2023 We begin here a series of papers examining the chromospheric and coronal properties of solar active regions. This first paper describes an extensive data set of images from the Atmospheric Imaging Assembly on the Solar Dynamics Observatory curated for ...
Karin Dissauer +2 more
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Moreton waves and EUV waves in the solar atmosphere
地球与行星物理论评, 2023 Solar eruptions, which generate various types of wave phenomena in the solar atmosphere, are sources of space weather perturbations. These waves not only transport a large amount of energy, but also illuminate the properties of the magnetic field and ...
Pengfei Chen
doaj +1 more source
Ellerman bombs-evidence for magnetic reconnection in the lower solar atmosphere [PDF]
, 2013 The presence of photospheric magnetic reconnection has long been thought to give rise to short and impulsive events, such as Ellerman bombs (EBs) and Type II spicules.
Doyle, John Gerard +6 more
core +2 more sources
The Astrophysical Journal, 2023 Previous studies analyzing the evanescent nature of acoustic waves in the lower solar atmosphere, up to 300 km above the photosphere, have shown an unexpected phase shift of an order of 1 s between different heights.
M. Waidele +2 more
doaj +1 more source
Research progress in coronal magnetic field measurements
地球与行星物理论评, 2022 Different solar atmospheric layers are connected by the magnetic field of the Sun, which is the primary source for various types of solar activity. The magnetic activity of the Sun has a significant impact on the solar-terrestrial environment and human ...
Zihao Yang +6 more
doaj +1 more source
, 2010 We present simulations of magneto-acoustic wave propagation in a magnetic, plane-parallel stratified solar model atmosphere, employing the CO5BOLD-code. The tests are carried out for two models of the solar atmosphere, which are similar to the ones used ...
Bogdan +9 more
core +1 more source