A Note on the Discovery of Absorption Features in 1E 1207.4-5209
XU Ren-Xin1,2, WANG Hong-Guang2, QIAO Guo-Jun2
1National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
2Astronomy Department, School of Physics, Peking University, Beijing 100871
A Note on the Discovery of Absorption Features in 1E 1207.4-5209
XU Ren-Xin1,2;WANG Hong-Guang2;QIAO Guo-Jun2
1National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012
2Astronomy Department, School of Physics, Peking University, Beijing 100871
Abstract： Sanwal et al. [Astrophys. J. 574 (2002) L61] supposed that it is very difficult to interpret the absorption features in terms of cyclotron lines. However, we would like to address here that the possibility of the absorption being cyclotron resonance cannot 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 ～ 6 x 10-11M/year. In this scenario, 1E 1207.4-5209 could also be a bare strange star.
XU Ren-Xin;WANG Hong-Guang;QIAO Guo-Jun. A Note on the Discovery of Absorption Features in 1E 1207.4-5209[J]. 中国物理快报, 2003, 20(2): 314-316.
XU Ren-Xin, WANG Hong-Guang, QIAO Guo-Jun. A Note on the Discovery of Absorption Features in 1E 1207.4-5209. Chin. Phys. Lett., 2003, 20(2): 314-316.
2003, Vol. 20 
