In a paper by Sanwal et al .
( 2002 ) , it is supposed to be very difficult to interpret the absorption features in term of cyclotron lines .
However , we would like to address here that the possibility of the absorption being cyclotron resonance can not be ruled out .
We propose that the isolate neutron star , 1E 1207.4-5209 in the center of supernova remnant PKS 1209-51/52 , has a debris disk and is in a propeller phase , with an accretion rate \sim 6 \times 10 ^ { -11 } M _ { \odot } /year .
In this scenario , 1E 1207.4-5209 could also be a bare strange star .

PACS : 97.60.Gb , 97.60.Jd , 97.60.Sm