Results 111 to 120 of about 10,692 (216)
Study of the mechanism for solar wind formation [PDF]
Observations of the corona and solar wind are analyzed and compared with generalized results derived from laboratory-scale experiments. It was shown that a thermal pressure gradient can make a major contribution to a precipitating plasma of the solar ...
Eselevich, V. G., Filippov, M. A.
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Solar Origins of Short-Term Periodicities in Near-Earth Solar Wind and Interplanetary Magnetic Field
Applied SciencesThis study investigates the solar origins of short-term periodicities in the near-Earth solar wind and interplanetary magnetic field (IMF) using long-term observations (1995–2024) and Potential Field Source Surface modeling.
Huichao Li +5 more
doaj +1 more source
The Astrophysical JournalThe origin of the slow solar wind is not well understood, unlike the fast solar wind that originates from coronal holes. In situ elemental abundances of the slow solar wind suggest that it originates from initially closed field lines that become open ...
Alexandros Koukras +2 more
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Multi-Thermal Segmentation of Solar Coronal Holes
, 2016 Here we present a poster describing a new multi-thermal segmentation method, to extract coronal boundaries from that of the quiet Sun.Our method uses 3 wavebands (171A, 193A and 211A) to exctract coronal holes and their ...
Garton, Tadhg, Gallagher, Peter
openaire +1 more source
The Astrophysical JournalDuring solar cycle minimum, polar coronal holes show a prominent radio brightening cap. The analysis of polar microwave enhanced radiation in polar coronal holes is helpful for understanding the magnetic field characteristics and the origin of the solar ...
Jing Huang +6 more
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CME Interaction with Coronal Holes and Their Interplanetary Consequences [PDF]
, 2008 A significant number of interplanetary (IP) shocks (-17%) during cycle 23 were not followed by drivers. The number of such "driverless" shocks steadily increased with the solar cycle with 15%, 33%, and 52% occurring in the rise, maximum, and declining ...
Akiyama, S. +4 more
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Responses of a Coronal Hole to a Fast Flare-driven Coronal Wave
The Astrophysical Journal LettersCoronal waves, significant solar phenomena, act as diagnostic tools for scientists studying solar atmosphere properties. Here, we present a novel observation detailing how a coronal wave event, associated with an X5.0 class flare, influenced the ...
Xiaofan Zhang +14 more
doaj +1 more source
White Light Coronograph (WLC) and Ultra-Violet Coronal Spectrometer (UVCS) [PDF]
The white light coronagraph (WLC) and ultraviolet coronal spectrometer (UVCS) together reveal the corona and the roots of the solar wind from 1.5 to 6 solar radii from Sun center.
Moore, R. L.
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Source Materials and Heating of Alfvénic Slow and Hot Solar Wind Revealed by Heavy Ions
The Astrophysical JournalThis work quantitatively studies the differences of heavy ions among non-Alfvénic slow wind (N-ASSW), classical fast wind (FSW), and Alfvénic slow and hot wind (ASSW and AHSW) by effect size and Kolmogorov–Smirnov statistic.
Shuyi Meng, Shuo Yao
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, 2008 This booklet includes 31 problems that involve a variety of math skills, including scientific notation, simple algebra, and calculus. Topics covered include black holes, ice on mercury, a mathematical model of the solar interior, sunspots, the heliopause,
Sten Odenwald
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