Voyager-1 Observations of MeV Ions and Electrons in the Vicinity of the Heliospheric Termination Shock

Details Voyager-1 Observations of MeV Ions and Electrons in the Vicinity of the Heliospheric Termination Shock Voyager-1 Observations of MeV Ions and Electrons in the Vicinity of the Heliospheric Termination Shock

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsh41b..05m&link_type=abstract

American Geophysical Union, Fall Meeting 2004, abstract #SH41B-05

Astronomy and Astrophysics

Astrophysics

7500 Solar Physics, Astrophysics, And Astronomy

Scientific paper

Beginning in 2002.5 at a heliospheric distance of some 85AU, the CRS (Cosmic Ray Subsystem) experiment on Voyager-1 observed two large increases in MeV ions and electrons accompanied by more modest increases in Galactic and Anomaloous cosmic rays (GCR and ACRs). The first event persisted for some 6.5 months and was terminated by the passage of a large outward moving interplanetary disturbance. The second event, which began in 2003.62, is still in progress more than a year later. We have interpreted these events as the expected energetic particle precursors as Voyager-1 approaches the heliospheric termination shock and we have termed them TSP (Termination Shock Particle) increases. There are small, but significant, differences between TSP 1 and 2 both in the time history of the ions and electrons and in the short term (13 - 52 day) variations. In addition the GCR and ACR flux levels are somewhat smaller for the 2nd event. These TSP events have not yet been observed at Voyager-2, which is at a heliocentric distance some 18AU less than Voyager-1. However, at Voyager-2 there is a remarkable series of solar/interplanetary energetic particle events associated with specific episodes of solar activity. The effects of these interplanetary transients is clearly evident in the time history of the Voyager-1 TSPs, thus providing another means of probing this new region of space.

Affiliated with

Also associated with

No associations

Rating

Voyager-1 Observations of MeV Ions and Electrons in the Vicinity of the Heliospheric Termination Shock does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Voyager-1 Observations of MeV Ions and Electrons in the Vicinity of the Heliospheric Termination Shock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voyager-1 Observations of MeV Ions and Electrons in the Vicinity of the Heliospheric Termination Shock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1462501