Resonant cyclotron scattering in pulsar magnetospheres and its application to isolated neutron stars
arXiv:0906.4223 · doi:10.1088/1674-4527/10/6/005
Abstract
Resonant cyclotron scattering (RCS) in pulsar magnetospheres is considered. The photon diffusion equation (Kompaneets equation) for RCS is derived. The photon system is modeled three dimensionally. Numerical calculations show that there exist not only up scattering but also down scattering of RCS, depending on the parameter space. RCS's possible applications to the spectra energy distributions of magnetar candidates and radio quiet isolated neutron stars (INSs) are point out. The optical/UV excess of INSs may caused by the down scattering of RCS. The calculations for RX J1856.5-3754 and RX J0720.4-3125 are presented and compared with their observational data. In our model, the INSs are proposed to be normal neutron stars, although the quark star hypothesis is still possible. The low pulsation amplitude of INSs is a natural consequence in the RCS model.
16 pages, 5 figures, 2 tables, accepted for publication in RAA
References in corpus (9)
- Corona of Magnetars
- Magnetic Hydrogen Atmosphere Models and the Neutron Star RX J1856.5-3754
- X-ray spectra from magnetar candidates. I. Monte Carlo simulations in the non-relativistic regime
- Resonant cyclotron scattering in magnetars' emission
- Timing Observations of Rotating Radio Transients
- Pulsar radiation belts and transient radio emission
- Neutron star magnetospheres: the binary pulsar, Crab and magnetars
- Improbability of DUrca process constraints EOS
- Microscopic magnetic dipole radiation in neutron stars
Cited by in corpus (7)
- Rotational evolution of the Crab pulsar in the wind braking model
- Magnetars: fact or fiction?
- AXPs and SGRs in the outer gap model: confronting Fermi observations
- On the derivation of the Kompaneets equation
- A note on the puzzling spindown behavior of the Galactic center magnetar SGR J1745-2900
- Non-detection of pulsed radio emission from magnetar Swift J1834.9-0846: constraint on the fundamental plane of magnetar radio emission
- The optical/UV excess of isolated neutron stars in the RCS model