Shunshun Cao

Shunshun Cao

Work on pulsars, neutron stars

Selected Publications

Journal Articles

Pulsar electrodynamics inferred from frequency-dependent circular polarization diversity

Published in Astronomy and Astrophysics, 2026

We show that the diversity of circular polarization in radio pulsar signals could be explained by the mode coupling in the limiting polarization region of pulsar magnetosphere. We establish a Bayesian analysis framework to infer magnetospheric parameters from single pulse circular polarization spectra.

Recommended citation: Cao et al. (2026). "Pulsar electrodynamics inferred from frequency-dependent circular polarization diversity " A&A 1. 710(A282).
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Rapid Rotation of Polarization Orientations in PSR B1919+21's Single Pulses: Implications on Pulsar's Magnetospheric Dynamics

Published in Astrophysical Journal, 2025

More than 1/3 pulses of B1919+21 are found to have quasi-monotonic polarization position angle rotations over 180 degrees. We analyze and model such phenomenon, and relate it to propagational processes in the magnetosphere.

Recommended citation: Cao et al. (2025). "Rapid Rotation of Polarization Orientations in PSR B1919+21's Single Pulses: Implications on Pulsar's Magnetospheric Dynamics " ApJ 1. 973(56).
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