Fig. 4: Quasilinear correlation between eigenfrequencies of oscillation modes and stellar compactness.
From: Oscillations of highly magnetized non-rotating neutron stars
Eigenfrequencies feig of the excited oscillation modes are plotted against compactness M/Rcirc of the NS model, where M is the gravitational mass and Rcirc is the circumferential radius. The FWHMs in the parabolic interpolations of FFT peaks are taken as the error bars for feig. All data points show that feig decreases together with M/Rcirc in an almost linear way. Hence, this demonstrates a quasilinear relation between eigenfrequencies of oscillation modes and stellar compactness for magnetized NSs.
