€ P
=0.424 s
€ dP/dt = 1.4 ± 0.3 10-14 s/s
Evidence of cyclotron absorption
€ Proton
cyclotron Þ B » 1.6 x 1014 G:
€ Electron Cyclotron Þ B » 8 x 1010 G
Þ Better agreement if:
Þ TOO HIGH!
Additional
breaking mechanisms (debris disk..);
Cyclotron
scattering at R ~3-4 stellar
radii
Š.
(but
also t ~4.8 x 105 yrs, incompatible with that of the SNR
< 104 yrs)
B »
(2-3) x 1012 G
1E1207.4-5209: