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Magnetic fields in superconducting neutron stars
1Theoretical Astrophysics, University of Tübingen, 72076 Tübingen, Germany.
Physical Review Letters
|August 29, 2014
Summary
Superconducting protons and superfluid neutrons in neutron stars create unique magnetic fields. This study models these fields, revealing new insights into neutron star structure and evolution.
Area of Science:
- Astrophysics
- Nuclear Physics
- Condensed Matter Physics
Background:
- Neutron stars contain superfluid neutrons and superconducting protons.
- The magnetic field behavior differs from normal matter due to quantized flux tubes.
Purpose of the Study:
- Model the magnetic field in superconducting neutron stars.
- Determine self-consistent equilibria for these stars.
- Quantify magnetically induced distortions.
Main Methods:
- Developed a single differential equation for axisymmetric superconducting equilibria.
- Solved the equation to find self-consistent configurations.
- Analyzed poloidal and mixed poloidal-toroidal fields.
Main Results:
- Presented the first self-consistent superconducting neutron star equilibria.
- Provided quantitative results for magnetic distortions.
- Found the poloidal component to be dominant.
Conclusions:
- The transition to superconducting matter may trigger large-scale magnetic field rearrangements in young neutron stars.
- This work provides a new framework for understanding neutron star magnetospheres.
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