A Transition to Fast Flows and Its Effects on the Magnetic Fields and Cosmic Rays Observed by Voyager 2 near 70 AU

Details A Transition to Fast Flows and Its Effects on the Magnetic Fields and Cosmic Rays Observed by Voyager 2 near 70 AU A Transition to Fast Flows and Its Effects on the Magnetic Fields and Cosmic Rays Observed by Voyager 2 near 70 AU

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...618.1074b&link_type=abstract

The Astrophysical Journal, Volume 618, Issue 2, pp. 1074-1078.

Astronomy and Astrophysics

Astronomy

6

Ism: Cosmic Rays, Interplanetary Medium

Scientific paper

A shocklike transition at 2003.37 from quasi-periodic flows to increasingly fast flows was observed by Voyager 2 (V2) near 70 AU. The transition was related to the appearance of coronal holes near the solar equatorial plane on Carrington rotation (CR) ~1994. Several important features (two cycles of quasi-periodic variations in V and B, a shock, a merged interaction region (MIR) with strong magnetic fields in a region with increasing speed, and a second shock that was related to the 2003 October 29-30 events at 1 AU) were observed by V2 from 2002.8 to 2004.4. A one-dimensional multifluid MHD model shows that these features at V2 evolved from the flows observed by ACE at 1 AU. The model also shows that the features propagated through the heliosphere out to 95 AU. The changes in the magnetic field associated with the features at V2 caused changes in the cosmic-ray intensity (CRI) of particles more energetic than 70 MeV nucleon-1. The quasi-periodic variations were related to variations in CRI, but they produced no appreciable net decrease in the CRI. Both the first shock and the MIR produced a steplike decrease in the CRI at V2.

Affiliated with

Also associated with

No associations

Rating

A Transition to Fast Flows and Its Effects on the Magnetic Fields and Cosmic Rays Observed by Voyager 2 near 70 AU 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 A Transition to Fast Flows and Its Effects on the Magnetic Fields and Cosmic Rays Observed by Voyager 2 near 70 AU, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Transition to Fast Flows and Its Effects on the Magnetic Fields and Cosmic Rays Observed by Voyager 2 near 70 AU will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-895670