Voyager 2 observations of plasma in the heliosheath.
Abstract
Voyager 2 has observed the plasma in the heliosheath since 2007 from 84 to 109 AU. No signs of the stagnation region observed by Voyager 1 have been observed. Instead, the plasma speed have remained relatively constant and the flow has turned tailward. Latest results from 2015 show that the flow is about 80 degrees from radial, with most of the flow in the T direction (using RTN coordinates). Temperature and density averages have remained constant since increases observed in 2011. The plasma parameters are highly variable; we show the distributions of the variabillty with time. We also show compare variations in the magnetic field and plasma on short (few hour) time scales through 2012.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2015
- Bibcode:
- 2015AGUFMSH41A2369R
- Keywords:
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- 2124 Heliopause and solar wind termination;
- INTERPLANETARY PHYSICS;
- 2126 Heliosphere/interstellar medium interactions;
- INTERPLANETARY PHYSICS;
- 2144 Interstellar gas;
- INTERPLANETARY PHYSICS;
- 2151 Neutral particles;
- INTERPLANETARY PHYSICS