Journal ArticleDOI
A comment on the detection of closed magnetic structures in the solar wind
J. T. Gosling,E. C. Roelof +1 more
TLDR
In this paper, it has been suggested that the large scale structure of the interplanetary magnetic field can be deduced solely from solar wind speed measurements and indirect diagnostics such as measurements of the solar wind kinetic temperature and galactic and solar energetic particle modulations and anisotropics.Abstract:
It has recently been suggested that the large scale structure of the interplanetary magnetic field can be deduced solely from solar wind speed measurements. Here it is emphasized that, in addition to speed measurements, direct measurements of the interplanetary field and indirect diagnostics such as measurements of the solar wind kinetic temperature and galactic and solar energetic particle modulations and anisotropics are required to distinguish between open and closed magnetic structures in the solar wind.read more
Citations
More filters
Journal ArticleDOI
ISEE 3 observations of low-energy proton bidirectional events and their relation to isolated interplanetary magnetic structures
TL;DR: A comprehensive survey of low-energy proton bidirectional anisotropies and associated transient magnetic structures as observed in the 35-1600 keV energy range on ISEE-3 during the last solar maximum is presented in this paper.
Journal ArticleDOI
Magnetic reconnection and coronal transients
Ulrich Anzer,G. W. Pneuman +1 more
TL;DR: In this article, a model of a coronal transient is proposed which incorporates magnetic reconnection process as the driving force for coronal transients that occur without flares, which are believed to involve magnetic fields that are too weak to produce significant chromospheric emission.
Journal ArticleDOI
Bi‐directional streaming of solar wind electrons >80 eV: ISEE evidence for a closed‐field structure within the driver gas of an interplanetary shock
TL;DR: In this paper, a strong bi-directional streaming of solar wind electrons greater than about 80 eV was observed with Los Alamos instrumentation on ISEE 3 for many hours simultaneously parallel and anti-parallel to the interplanetary magnetic field which was directed roughly perpendicular to the sun-satellite line.
Journal ArticleDOI
Large‐scale inhomogeneities in the solar wind of solar origin
TL;DR: The most notable contributions to our understanding of large-scale inhomogeneities in the solar wind have come from the following developments: the creation of realistic nonlinear models of solar wind stream interactions and evolution with increasing heliocentric distance; the careful observational study of stream structure, particularly that work that delineated the role of stream interaction and evolution in producing solar wind variability; the coming of age of radio scintillation measurements which have allowed the routine observation of stream flow far from the ecliptic; the discovery of coronal holes and their identification as the probable source
Journal ArticleDOI
Bidirectional anisotropies in solar cosmic ray events: Evidence for magnetic bottles
TL;DR: In this paper, a detailed consideration is given to the characteristics of two observed solar electron events and the formation of bidirectional anisotropy by propagation and by energy change is also discussed.
References
More filters
Book
Coronal Expansion and Solar Wind
TL;DR: In this paper, an alternative model of the Coronal expansion of the solar magnetic field was proposed, based on a one-fluid and two fluid models of the coronal expansion.
Journal ArticleDOI
A coronal hole and its identification as the source of a high velocity solar wind stream
TL;DR: In this paper, X-ray images of the solar corona showed a magnetically open structure in the low corona which extended from N20W20 to the south pole.
Journal ArticleDOI
Anomalously low proton temperatures in the solar wind following interplanetary shock waves—evidence for magnetic bottles?
TL;DR: In this article, anomalously low values of the solar wind proton temperature Tp are observed when the wind velocity υ is high, and it is suggested that these observations are consistent with a model for some shock wave disturbances that includes the ejection of new material (distinguished by the helium enrichment at 1 AU), and the formation of a magnetic bottle configuration behind and within the ejecta.
Journal ArticleDOI
The outer solar corona as observed from Skylab - Preliminary results
R. M. MacQueen,J. A. Eddy,J. T. Gosling,E. Hildner,R. H. Munro,G. A. Newkirk,Arthur I. Poland,C. L. Ross +7 more
TL;DR: The white-light coronagraph experiment has made frequent, periodic observations of the solar corona from 1.5 to 6.0 solar radii during the Skylab mission, and these observations will permit the determination of the three-dimensional extent of coronal forms.
Journal ArticleDOI
Large-scale structure of the interplanetary medium. I - High coronal source longitude of the quiet-time solar wind
J.T. Nolte,E.C. Roelof +1 more
TL;DR: In this article, an extension of the quasi-radial hypervelocity (QRH) approximation yields a proper estimate of the high coronal source location at the ( elease zone'' where the solar wind makes its transition to radial interplanetary flow.