This communication deals with the observation issue of neutron stars directly via their magnetic-dipole radiation. The bremsstrahlung absorption phenomenon is introduced in this context, although the observation of neutron stars via their magnetic-dipole radiation has already been treated in the literature for more than two decades. The evaluation of the bremsstrahlung absorption indicates that the absorption coefficient is relatively large. As a result, the magnetic-dipole radiation of the prospective neutron stars, from any reasonable distance is strongly attenuated. Therefore, we conclude that the observation of neutron stars via their low-frequency magnetic-dipole radiation is apparently not feasible. Although the bremsstrahlung was already treated by Lipunov, our present conclusion differs significantly from his results. The first part of the article reviews comprehensively the relatively long history of the idea of detecting neutron stars through their direct mode of magnetic-dipole radiation.
ASJC Scopus subject areas
- Physics and Astronomy (all)