Ten years solar wind experiments on HELIOS 1 and HELIOS 2
Abstract
The Helios solar wind experiment is reviewed. The experiment measures low energy ions and electrons which run through an electrostatic or electrodynamic deflection system. A stepwise registration of energy spectra is performed, and the direction of particle arrival is also determined. Velocity distribution functions for the different particle species are used to deduce solar wind properties. The instruments operate without any major malfunctions. The long life of Helios 1 allowed it to collect a set of solar plasma data of almost identical quality over a full solar activity cycle.
- Publication:
-
Geochimica et Cosmochimica Acta Supplement
- Pub Date:
- 1984
- Bibcode:
- 1984GeCAS.......66S
- Keywords:
-
- Helios 1;
- Helios 2;
- Solar Wind;
- Solar Activity;
- Solar Wind Velocity;
- Velocity Distribution