Two Phase Diagram (IMAGE) Max-Planck-Gesellschaft Caption This shows two phase diagram and pulse profile of J2028 +3332 gamma pulsars over two rotation periods. The figure shows the pulse phase of each photon at its arrival time. The grey scale represents the weighting probability of the photons. Credit Copyright Pletsch et al. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.