Tayler instability with Hall effect in young neutron stars

G. Rüdiger, D. A. Shalybkov, M. Schultz, M. Mond

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Collapse calculations indicate that the hot young neutron stars rotate differentially so that strong toroidal magnetic field components should exist in the outer shell where also the Hall effect appears to be important when the Hall parameter β̂ = wbt exceeds unity. The amplitudes of the induced toroidal magnetic fields are limited by the current-induced Tayler instability. An important characteristics of the Hall effect is its distinct dependence on the sign of the magnetic field. We find for fast rotation that positive (negative) Hall parameters essentially reduce (increase) the stability domain. It is thus concluded that the toroidal field belts in young neutron stars induced by their differential rotation should have different amplitudes in both hemispheres which later are frozen in. Due to the effect of magnetic suppression of the heat conductivity also the brightness of the two hemispheres should be different. As a possible example for our scenario the isolated neutron star RBS 1223 is considered which has been found to exhibit different X-ray brightness at both hemispheres.

Original languageEnglish
Pages (from-to)12-19
Number of pages8
JournalAstronomische Nachrichten
Issue number1
StatePublished - 1 Jan 2009


  • Instabilities -
  • Magnetic fields -
  • Magnetohydrodynamics (mhd) -
  • Plasmas -
  • Stars: Neutron

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


Dive into the research topics of 'Tayler instability with Hall effect in young neutron stars'. Together they form a unique fingerprint.

Cite this