SP detection rate dependence on Galactic longitude. The longitude errors depict the longitude range of PTs with which the rates have been calculated. The rate errors are the 90% Poisson errors as given in Table 3. The simulated longitudinal distribution of stars in the Galactic disk is shown up to a distance of 2.2 kpc from the Sun together with the longitudinal distribution of known pulsars from PSRCAT. The stellar distribution is multiplied by a value ρ₀ (Eq. (1)) such that it best describes the longitude rates. The pulsar distribution is given the same area as the stellar distribution.