Introduction Period interpulse (~P/10) pulse
{"Image DocumentName": "Introduction Period interpulse (~P/10) pulse", "Image ImageDescription": "Known radio pulsars appear to emit short pulses of radio radiation with pulse periods between 1.4 ms and 8.5 seconds (P usually \u2264 1sec, dP/dt > 0). Even though the word pulsar is a combination of pulse and star, pulsars are not pulsating stars. Their radio emission is actually continuous but beamed, so any one observer sees a pulse of radiation each time the beam sweeps across his line-of-sight. Since the pulse periods equal the rotation periods of spinning neutron stars, they are quite stable. Period. interpulse. (~P/10) pulse. Pulsars (ie objects which emit radio pulses with very short periods) are isolated, highly magnetic neutron stars which radiate energy produced in the slowing down of their rapid spinning motion. Rotational period is generally less than 1 second and the period is increasing with time. Neutron stars are supported by degeneracy pressure because their internal densities are so high that classical gas formulae are inappropriate to describe conditions. The \u2018pressure\u2019 is a result of Heisenberg\u2019s Uncertainty Principle and Fermi\u2019s Exclusion Principle, which state that particles cannot occupy the same quantum state. The resultant mechanical momenta of the particles provides the pressure of the degenerate gas. Pulsating X-ray sources - X-ray pulsators, are compact objects (generally neutron stars) in binary systems which accrete matter from a normal star companion. The energy radiated is produced by accretion and modulated with the neutron star spin period. X-ray pulsator period generally tens of seconds, some with ~ few seconds. Their period is decreasing with time, ie. they are spinning up.X-ray pulsators are effectively binary pulsars. The magnetic axes of both pulsars and X-ray pulsators are not aligned with the rotation axis. See Smith, p12-13.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}