1. Isolated neutron stars仝号
南京大学天文系

2. Outline The observations Scattering in pulsar magnetospere The results
Magnetars
RRATs
INSs
Scattering in pulsar magnetospere
The results

4. Radiation belt of a NS?

5. Anomalous X-ray pulsars
Lack of evidence of binary companions
Luminosity larger than the spin down power
Periods in the 5-12s range
Spin-down time scales of 10^3-10^5yrs
No long term variability (NO!)

6. AXPs (II) Soft X-ray spectrum Absence of radio emission
(In some cases) Associate with supernova remnants

7. Theory
Magnetar
18颗

9. Consequences
Magnetospheric plasma density 3 orders larger than the \rho_GJ
Resonant cyclotron scattering (RCS)

11. RRATs
22颗

13. INSs 7颗

14. Spectrum of J1856 X-ray: Optical/UV excess: Distance: 140 pc
Temperature: 63 eV
Radius: 5.1 km
Optical/UV excess:
Temperature: 26 eV
Radius: 21.2 km
Distance: 140 pc

16. Electron blanket

17. Radiation belt of a NS?

18. Physical process
Resonant cyclotron scattering

19. 谢谢！