Pulsating neutron star as a source of quasistatic waves of gravity in interstellar medium

Abstract

The hydrodynamic waves of gravity in the galactic interstellar medium generated by a pulsating neutron star are discussed in this paper. It is shown that the frequency of oscillations of interstellar gas-dust matter in this wave is proportional to that for the g-mode in the neutron star bulk. The corresponding periods are of the millisecond duration. The collective oscillations of charged species in the interstellar wave of gravity can produce electromagnetic radiation, and that the only radio waves of this radiation can freely travel through the galactic gas-dust clouds, suggests that this kind of interstellar waves can manifest itself in the radio range of spectra of a neutron star undergoing pulsations triggered by starquake. This inference is in line with the statement that quasiperiodic micropulses with a time scale of a few milliseconds located in the windows of the main pulse train of the radio pulsar spectra owe their origin to pulsations of neutron stars. © World Scientific Publishing Company.