Mass–mass diagram and the marginalised histograms. The black and green solid lines indicate 1σ range of h₃ and ς, respectively. The companion mass, the inclination angle as well as the pulsar mass were determined based on the probability density distribution (PDF). The measured values (solid red lines), and uncertainties (dashed red lines) are determined from the median, and 68.1% confidence intervals, respectively. However, the error scale of the pulsar mass is large because of the shallow angle between the h₃ and ς curves. The red point indicates the peak position of the posterior distributions of the measured masses from TEMPONEST. The parts of a tail, exceeding the Chandrasekhar mass (M_ch = 1.48 M_⊙) which is shown as a dark grey, were truncated. We also excluded the PDFs below the minimum neutron star mass, M_{pulsar, min} = 1.17 M_⊙, determined by Suwa et al. (2018). The light grey is the outside of the range of the expected companion mass by PA13.