Extended Data Table 1.

Properties of LSR J1835 + 3259

^*Stokes I quiescent radio flux densities reported in the literature. When available, listed observing frequencies are the centre of the reported observing band. Symbols used above: μ_α cos δ: proper motion in the right ascension (R. A.) direction, converted by declination (Dec., δ). μ_δ: proper motion in the declination direction. i: Inclination angle of rotation axis with respect to the line of sight. L_x: X-ray luminosity. F_ν: Radio flux density.