1. Gong Biping Urumqi Observatory
The same physics underlying SGRs, AXPs, X-ray pulsars and radio pulsars
Gong Biping
Urumqi Observatory
2019/4/11

2. A possible model on timing noise
2019/4/11

3. Observational phenomena of isolated pulsars
timing noise
Braking index
Ratios of pulse frequency derivatives
2019/4/11

4. braking index
Timing noise
2019/4/11

5. ratios
By magnetic dipole radiation ? No
2019/4/11

6. Are they induced by unknown companion?
2019/4/11

7. Effect of Orbital motion
2019/4/11

8. Observer’s time
2019/4/11

9. Averaging by observer’s time (1)
2019/4/11

10. Averaging by observer’s time (2)
2019/4/11

11. Effect on pulse frequency derivative(s)
where
2019/4/11

12. Ratios can be interpreted
2019/4/11

13. Age
2019/4/11

14. Braking index and timing noise parameters on different pulsars can be interpreted by the same model
x=(M2/M)a sin i/c
2019/4/11

15. 2019/4/11

16. Summary For SGRs,AXPs, X-ray pulsars and radio pulars Timing noise
Braking index
ratios
For the timing noise of G.Hobbs
|n|>>3
46% of n are negative
the curve of timing Res
The value of timing noise parameter
2019/4/11

17. Thank you
2019/4/11

18. The masses and orbital period of 1E1207 are constrained in the area ABCD
2019/4/11

19. Interpretation of four puzzles of 1E1207
2019/4/11

20. 2019/4/11

21. 2019/4/11