Abstract
We study the stress tensor of electron in strong magnetic fields which are greater than the critical value Bc≃4.4×1013 G. We claim that such a strong magnetic field induces the anisotropic kinetic pressure term of electron in magnetohydrodynamic equations and can generate entropy in collisional quantum plasmas. We discuss its consequence to the neutrino-driven wind in core-collapse supernovae and argue that it can produce large entropy per baryon, S∼400kB. This mechanism might successfully account for the production of the heavy nuclei with mass numbers A=80-250 through the r-process nucleosynthesis.
| Original language | English |
|---|---|
| Pages (from-to) | 433-441 |
| Number of pages | 9 |
| Journal | Astroparticle Physics |
| Volume | 21 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2004 Jul 1 |
ASJC Scopus subject areas
- Astronomy and Astrophysics
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Kohri, K., Yamada, S., & Nagataki, S. (2004). Anisotropic kinetic pressure in ideal MHD and application to entropy production in neutrino-driven wind in supernovae. Astroparticle Physics, 21(4), 433-441. https://doi.org/10.1016/j.astropartphys.2004.02.007