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Detailed Reference Information |
Rees, A. and Forsyth, R.J. (2003). Magnetic clouds with east/west orientated axes observed by Ulysses during solar cycle 23. Geophysical Research Letters 30: doi: 10.1029/2003GL017296. issn: 0094-8276. |
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The second Ulysses orbit of the Sun has provided a unique opportunity for the study of the interplanetary manifestation of coronal mass ejections (ICMEs) over a wide range of heliographic latitudes. The Ulysses dataset between July 1995 and mid April 2003 has been surveyed for magnetic clouds (MCs), a subset of ICMEs. As a result of the rising solar activity during this time, ICMEs were observed over a wide range of heliographic latitudes. By fitting a constant α, force-free flux rope model to each event we determine whether the local axis orientation of the MCs are directed in an eastward or a westward sense. We show that during this period in solar cycle 23, those MCs whose hemispheric origin is clear display a trend, with MCs in the southern hemisphere having predominantly westward directed local axes and those in the northern hemisphere having eastward directed local axes. |
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Abstract |
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Keywords
Interplanetary Physics, Interplanetary magnetic fields, Interplanetary Physics, Solar cycle variations, Interplanetary Physics, Solar wind plasma, Interplanetary Physics, Sources of the solar wind |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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