Predicted polarised intensity contours (labelled in units of mJy beam⁻¹) overlaid with line segments that indicate the polarisation of (a) H¹³CN, (b) CS, and (c) SiS emission emerging from a CSE representative of CW Leo. The polarised intensity is given at the systemic velocity channel. The symmetry axis of the molecules was chosen in the radial direction, representative of radiative alignment. The simulated data has been convolved with the synthesised beam from the observations. The panels correspond to the emission in a velocity channel centred on the stellar velocity.