2018/02/01 by Rahul Basu, Dipanjan Mitra · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Astronomy #Astrophysics #High-pressure geophysics and materials #Magnetic confinement fusion research #Mode (computer interface) #Optics #Physics #Pulsar #Pulsars and Gravitational Waves Research #Pulse (music) #X-ray pulsar #astro-ph.HE
paper · pdf · doi:10.1093/mnras/sty297
11 pages, 10 figures, accepted for publication in MNRAS
arxiv created 2018/02/01 · openalex publication_date 2018/02/02 · arxiv updated 2018/02/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report a detailed observational study of the single pulses from the pulsar J1822−2256. The pulsar shows the presence of subpulse drifting, nulling as well as multiple emission modes. During these observations the pulsar existed primarily in two modes; mode A with prominent drift bands and mode B which was more disorderly without any clear subpulse drifting. A third mode C was also seen for a short duration with a different drifting periodicity compared to mode A. The nulls were present throughout the observations but were more frequent during the disorderly B mode. The nulling also exhibited periodicity with a clear peak in the fluctuation spectra. Before the transition from mode A to nulling the pulsar switched to a third drifting state with periodicity different from both mode A and C. The diversity seen in the single pulse behaviour from the pulsar J1822−2256 provides an unique window into the emission physics.