View of the CH₃OH maser features detected around the mm subcores A1 (left panel) and A2 (right panel) of G24.78+0.08. The reference position is and (see Sect. 3). Triangle symbols identify CH₃OH maser features scaled logarithmically according to their peak flux density (Table A.1). Maser LSR radial velocities are indicated by color (the assumed velocity of the region is km s^-1, Furuya et al. 2002). A 1 Jy beam^-1 symbol is plotted for illustration in both panels. The linear polarization vectors, scaled logarithmically according to polarization fraction P_l, are overplotted. In the bottom right corner of both panels the corresponding error-weighted orientation of the magnetic field (⟨ Φ_B ⟩, see Sect. 5.1) is also reported, the two dashed segments indicate the uncertainty. The two arrows in the right panel indicate the direction, and not the actual position, of the red- and blueshifted lobes of the outflow associated with G24.78+0.08-A2 (°; Beltrán et al. 2011). The dotted lines indicate the direction of the CH₃CN toroids (Beltrán et al. 2011). The circled plus and minus symbols indicate where the magnetic field points away from and where toward the observer, respectively.