Search for the Heliospheric Termination Shock (TS) and Heliosheath (HS)

Details Search for the Heliospheric Termination Shock (TS) and Heliosheath (HS) Search for the Heliospheric Termination Shock (TS) and Heliosheath (HS)

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..781..267n&link_type=abstract

THE PHYSICS OF COLLISIONLESS SHOCKS: 4th Annual IGPP International Astrophysics Conference. AIP Conference Proceedings, Volume

Astronomy and Astrophysics

Astrophysics

Solar Wind, Plasma Shock Waves, Interplanetary Magnetic Fields, Cosmic Rays, Particle Emission, Solar Wind, Solar Wind Plasma, Sources Of Solar Wind, Shock Waves And Discontinuities, Interplanetary Magnetic Fields

Scientific paper

Voyager 1 continues to measure the very distant Heliospheric Magnetic Field (HMF) beyond 95 AU at ~35 North latitude. The MAG instrument data covers more than a full 22 years solar magnetic cycle. The magnitude of the observed HMF is well described, on average, by Parker's Archimedean spiral structure if due account is made for time variations of the source field strength and solar wind velocity. The V1 magnetic field observations do not provide any evidence for a field increase associated with entry into a subsonic solar wind region, such as the heliosheath is expected to be, nor an exit from this regime. We see no evidence for crossing of the Termination Shock (TS) as has been reported at ~85 AU by the LECP instrument. Merged Interaction Regions are identified by an increased HMF and associated decreases in the flux of >70 MeV/nuc cosmic rays which are then followed by a flux recovery. This CR-B relationship has been identified in V1 data and studied since 1982 when V1 was at 11 AU. The variance of HMF, a direct measure of the energy**1/2 in the HMF fluctuations, shows no significant changes associated with the alleged TS crossings in 2002-2003. Thus, the absence of any HMF increase at the entry into the heliosheath appears not to be due to the onset of mesoscale turbulence as proposed by Fisk. The TS has yet to be directly observed in-situ by the V1 MAG experiment in data through 2003.

Affiliated with

Also associated with

No associations

Rating

Search for the Heliospheric Termination Shock (TS) and Heliosheath (HS) 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 Search for the Heliospheric Termination Shock (TS) and Heliosheath (HS), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for the Heliospheric Termination Shock (TS) and Heliosheath (HS) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1344745