Astrophysical journal. Letters, 2014-04, Vol.785 (2), p.1-6
2014
Volltextzugriff (PDF)
Details
- Autor(en) / Beteiligte
- Titel
- AB INITIO PULSAR MAGNETOSPHERE: THREE-DIMENSIONAL PARTICLE-IN-CELL SIMULATIONS OF AXISYMMETRIC PULSARS
- Ist Teil von
- Astrophysical journal. Letters, 2014-04, Vol.785 (2), p.1-6
- Ort / Verlag
- United States
- Erscheinungsjahr
- 2014
- Quelle
- EZB Electronic Journals Library
- Beschreibungen/Notizen
- We perform "first-principles" relativistic particle-in-cell simulations of aligned pulsar magnetosphere. We allow free escape of particles from the surface of a neutron star and continuously populate the magnetosphere with neutral pair plasma to imitate pair production. As pair plasma supply increases, we observe the transition from a charge-separated "electrosphere" solution with trapped plasma and no spin-down to a solution close to the ideal force-free magnetosphere with electromagnetically dominated pulsar wind. We calculate the magnetospheric structure, current distribution, and spin-down power of the neutron star. We also discuss particle acceleration in the equatorial current sheet.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 2041-8205eISSN: 2041-8213DOI: 10.1088/2041-8205/785/2/L33Titel-ID: cdi_osti_scitechconnect_22365893
- Format
- –
- Schlagworte
- ACCELERATION, ASTROPHYSICS, COSMOLOGY AND ASTRONOMY, AXIAL SYMMETRY, Current sheets, MAGNETIC FIELDS, Magnetospheres, Mathematical analysis, MATHEMATICAL SOLUTIONS, NEUTRON STARS, PAIR PRODUCTION, Particle in cell technique, PLASMA, Pulsar magnetospheres, PULSARS, RELATIVISTIC RANGE, ROTATION, Simulation, SPIN, STELLAR MAGNETOSPHERES, STELLAR WINDS, Three dimensional, THREE-DIMENSIONAL CALCULATIONS, TRAPPING