Results 121 to 130 of about 235 (149)
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Forerunners: Outer rims of solar coronal transients
Solar Physics, 1978The large loop or blob-like transient events viewed in the white-light corona are rimmed by broad regions where the density is slightly enhanced above the pre-transient corona. Every one of the Skylab events studied for which sufficiently good Skylab coronagraph coverage is available shows this effect.
B. V. Jackson, E. Hildner
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Force-Free Equilibria, Solar Flares and Coronal Transients
International Astronomical Union Colloquium, 1979The solar flare phenomenon is due to the sudden dissipation of magnetic energy in the solar corona. Growing evidence shows that flares may occur in closed magnetic configurations, and that photospheric shearing motions are essential in triggering the phenomenon.
J. Heyvaerts +3 more
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Observation of a coronal transient from 1.2 to 6 solar radii
Journal of Geophysical Research: Space Physics, 1985We describe in detail the eruptive prominence associated coronal mass ejection of August 5, 1980, as seen in both the Solar Maximum Mission (SMM) coronagraph polarimeter and the Mauna Loa Observatory (MLO) K coronameter and prominence monitor. This event gives us the first detailed look at the propagation of a “depletion” transient into the outer ...
R. M. E. Illing, A. J. Hundhausen
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Spatial Structure of Solar Coronal Magnetic Loops Revealed by Transient Microwave Brightenings
Solar Physics, 1998We present the measurement of magnetic field gradient in magnetic loops in the solar corona, based on the multi-wavelength Very Large Array observations of two transient microwave brightenings (TMBs) in the solar active region 7135. The events were observed at 2 cm (spatial resolution ∼ 2=) and 3.6 cm (spatial resolution ∼ 3=) with a temporal ...
J. Zhang +4 more
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A white-light/Fe X/Hα coronal transient observation to 10 solar RadII
Solar Physics, 1983Multitelescope observations of the coronal transient of April 15-16, 1980 provide simultaneous data from the Solar Maximum Mission Coronagraph/Polarimeter, the Solwind Coronagraph, and the new Emission line Coronagraph of the Sacramento Peak Observatory.
W. J. Wagner +9 more
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Coronal transients and their relation to solar flares
Advances in Space Research, 1991Abstract Our understanding of the relationship between coronal transient events and flare activity is severely restricted by a complex web of preconception, mythology and misinterpretation. In principle, for some time we have had access to the observations needed to develop a good knowledge of coronal activity at the time of flaring.
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Radio and X-ray imaging observations of solar flares and coronal transients
Solar Physics, 1996We present a review of selected studies based upon simultaneous radio and X-ray observations of solar flares and coronal transients. We use primarily the observations made with large radio imaging instruments (VLA, BIMA, Nobeyama, and Nancay) along with Yohkoh/SXT and HXT and CGRO experiments.
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Physics of Plasmas, 2001
The nonlinear dynamical equation for the propagation of kinetic Alfvén waves has been derived in two dimensions using the two-fluid model of the plasma and by taking the adiabatic response for the background density in the presence of nonlinear electron heating and the ponderomotive force. Dynamically evolving filamentary structures are predicted.
Anita Shukla, R. P. Sharma
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The nonlinear dynamical equation for the propagation of kinetic Alfvén waves has been derived in two dimensions using the two-fluid model of the plasma and by taking the adiabatic response for the background density in the presence of nonlinear electron heating and the ponderomotive force. Dynamically evolving filamentary structures are predicted.
Anita Shukla, R. P. Sharma
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Solar Physics, 1988
A coronal condensation was observed simultaneously with Fexiv λ5303, Fex λ6374, Fe xi λ7892, and Hα filtergraphs. The size and shape of the condensation in λ5303 are different from those in other filtergrams. Hα filtergrams taken around the eclipse time show that a small transient prominence exists in close proximity to the condensation core and ...
Yoshinori Suematsu +3 more
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A coronal condensation was observed simultaneously with Fexiv λ5303, Fex λ6374, Fe xi λ7892, and Hα filtergraphs. The size and shape of the condensation in λ5303 are different from those in other filtergrams. Hα filtergrams taken around the eclipse time show that a small transient prominence exists in close proximity to the condensation core and ...
Yoshinori Suematsu +3 more
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Advances in Space Research, 2005
Abstract Dimensionless scaling is a useful theoretical tool for the investigation and classification of unexplored physical regimes. It ideally fits the main tasks of the Solar Orbiter. The related to this problem of three-dimensional geometry of solar and heliospheric plasma and magnetic field structures associated with flares and ejections on the ...
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Abstract Dimensionless scaling is a useful theoretical tool for the investigation and classification of unexplored physical regimes. It ideally fits the main tasks of the Solar Orbiter. The related to this problem of three-dimensional geometry of solar and heliospheric plasma and magnetic field structures associated with flares and ejections on the ...
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