Results 21 to 30 of about 1,272,533 (187)
Micro-events in the active and quiet solar corona [PDF]
Advances in Space Research, 2003 The content of hot material in the corona is not constant. Soft X-ray and high-temperature EUV line observations show that new material, apparently heated and evaporated from the chromosphere, is frequently injected into the corona both in active and quiet regions. Active regions are found to exhibit transient brightenings, termed here microflares, due
Benz, Arnold O., Grigis, Paolo C.
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On the topology of global coronal magnetic fields [PDF]
, 2014 This thesis considers the magnetic topology of the global solar corona. To understand the magnetic topology we use the magnetic skeleton which provides us with a robust description of the magnetic field.
Edwards, Sarah J.
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A new approach to the maser emission in the solar corona [PDF]
, 2015 Aims. The electron plasma frequency ωpe and electron gyrofrequency Ωe are two parameters that allow us to describe the properties of a plasma and to constrain the physical phenomena at play, for instance, whether a maser instability develops.
Regnier, Stephane, S. Régnier
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Study of Radio Transients from the Quiet Sun during an Extremely Quiet Time
The Astrophysical Journal, 2023 In this work, we study a class of recently discovered meter-wave solar transients referred to as Weak Impulsive Narrowband Quiet Sun Emission (WINQSEs).
Surajit Mondal +2 more
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Multi-scale statistical analysis of coronal solar activity [PDF]
Nonlinear Processes in Geophysics, 2016 Multi-filter images from the solar corona are used to obtain temperature maps that are analyzed using techniques based on proper orthogonal decomposition (POD) in order to extract dynamical and structural information at various scales.
D. Gamborino +2 more
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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
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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
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High-frequency Decayless Waves with Significant Energy in Solar Orbiter/EUI Observations
The Astrophysical Journal, 2023 High-frequency wave phenomena present a great deal of interest as one of the possible candidates to contribute to the energy input required to heat the corona as a part of the alternating current heating theory.
Elena Petrova +3 more
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Correlation analysis of solar flux absolute measurements at 161 and 245 MHz
Solar-Terrestrial Physics, 2023 Solar emission in meter waves originates from upper layers of the solar corona. We present absolute measurements of solar flux from Irkutsk Incoherent Scatter Radar (161 MHz frequency) and Learmonth Observatory (245 MHz frequency). We perform correlation
Setov A. G., Kushnarev D. S.
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Estimating the contribution of Alfvén waves to the process of heating the quiet solar corona [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 We solve numerically the ideal MHD equations with an external gravitational field in 2D in order to study the effects of impulsively generated linear and non-linear Alfvén waves into isolated solar arcades and coronal funnels. We analyze the region containing the interface between the photosphere and the corona.
Gonzalez-Aviles, J. J., Guzman, F. S.
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