The Importance of the Hall Effect in Magnetic Reconnection: Comparisons of Hybrid and Hall- less Hybrid Simulations

Details The Importance of the Hall Effect in Magnetic Reconnection: Comparisons of Hybrid and Hall- less Hybrid Simulations The Importance of the Hall Effect in Magnetic Reconnection: Comparisons of Hybrid and Hall- less Hybrid Simulations

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsm24a..07m&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SM24A-07

Physics

2723 Magnetic Reconnection (7526, 7835), 7526 Magnetic Reconnection (2723, 7835), 7835 Magnetic Reconnection (2723, 7526)

Scientific paper

Petschek reconnection describes how reconnection is able to proceed fast enough to explain observed energy release rates in eruptive events in the solar corona and Earth's magnetosphere. However, Petschek reconnection does not self-consistently occur in resistive magnetohydrodynamics (MHD). It was shown, for example, in the GEM Magnetic Reconnection Challenge [1] that the presence of the Hall effect is sufficient to set up (fast) Petschek reconnection. While it is well established that resistive MHD simulations without the Hall term give slow (Sweet-Parker) reconnection, the situation in hybrid simulations (particle ions, fluid electrons) is less clear, with some studies finding fast reconnection even without the Hall term[2]. In this study, we examine the role of the Hall term in allowing fast reconnection in hybrid simulations, with careful consideration of the chosen electron dissipation model. [1] J. Birn et al., J. Geophys. Res., 106, 3715 (2001). [2] H. Karimabadi, D. Krauss-Varban, J. D. Huba and H. X. Vu, J. Geophys. Res., 109, A09205 (2004).

Affiliated with

Also associated with

No associations

Rating

The Importance of the Hall Effect in Magnetic Reconnection: Comparisons of Hybrid and Hall- less Hybrid Simulations 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 The Importance of the Hall Effect in Magnetic Reconnection: Comparisons of Hybrid and Hall- less Hybrid Simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Importance of the Hall Effect in Magnetic Reconnection: Comparisons of Hybrid and Hall- less Hybrid Simulations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1400536