Solar wind composition measurements by the Ulysses SWICS experiment during transient solar wind flows

1993 ◽  
Vol 13 (6) ◽  
pp. 75-78 ◽  
Author(s):  
A.B. Galvin ◽  
G. Gloeckler ◽  
F.M. Ipavich ◽  
C.M. Shafer ◽  
J. Geiss ◽  
...  

Composition measurements in the solar wind provide important information for solar system science and astrophysics. We show in this report how ion composition data are used to investigate chromospheric and coronal processes. Isotopic abundances in the Sun can best be derived from solar wind measurements. 3 He / 4 He is an isotopic ratio with far-reaching implications. It allows us to determine the deuterium abundance in the proto-solar nebula, which in turn leads to an estimate of deuterium production in the early universe. The interstellar gas is the second most important source of heliospheric ions. Atomic abundances in the local interstellar gas are derived from ion composition measurements, and processes in the solar wind termination region and beyond are studied.


1970 ◽  
Vol 75 (31) ◽  
pp. 5972-5979 ◽  
Author(s):  
J. Geiss ◽  
P. Eberhardt ◽  
F. Bühler ◽  
J. Meister ◽  
P. Signer

Author(s):  
S. J. Bame ◽  
W. C. Feldman ◽  
J. T. Gosling ◽  
D. T. Young ◽  
R. D. Zwickl

2000 ◽  
Vol 24 (1) ◽  
pp. 77-84
Author(s):  
F. Verheest ◽  
M. Vandas ◽  
B. Buti ◽  
N.F. Cramer ◽  
M. Dryer ◽  
...  

In the last decade the triennial reports from Commission 49 have covered various topics like (nonlinear) plasma processes, magnetohydrodynamic phenomena and flows in the heliosphere, solar wind composition, transient events in, and latitudinal dependencies of, the heliosphere, interstellar gas flow through the interface region, kinetic versus magnetohydrodynamic theory in heliospheric plasmas and charged dust in space plasmas. Continuing the tradition of summarizing specific aspects to give astronomers outside our own specialty a flavour of our field, we now address recent advances in understanding coronal mass ejections in interplanetary space and the inner heliospheric solar wind under quiet and perturbed conditions. We owe a great debt of gratitude to the eminent contributors for their valiant efforts in writing these succinct but clear reports and guiding us through the recent literature.


2002 ◽  
Vol 29 (9) ◽  
pp. 66-1-66-4 ◽  
Author(s):  
T. H. Zurbuchen ◽  
L. A. Fisk ◽  
G. Gloeckler ◽  
R. von Steiger

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