The Study for Mode Changing for Radio Pulsar <scp>J0742</scp>‐2822 at 3.1 GHz

ABSTRACT The mode switching of PSR J0742‐2822 at 3.1 GHz was investigated using single‐pulse data from the Parkes 64‐m radio telescope in Australia. By analyzing the ratio of the relative intensity of the two components for each sub‐integral profile, we classified the integral profile of this source into two modes: normal mode and abnormal mode. We then obtained the average profile of PSR J0742‐2822 at 3.1 GHz for each mode. The results indicate that the normal and abnormal modes of integrated pulse profiles occurred 72% and 28% of the time, respectively, over a total of 3.7 h of observation. This study is significant for understanding the theoretical mechanism behind the pulsar mode‐switching phenomenon.