Channel maps for the H¹³CO⁺ J = 3 − 2 transition. Black contours are in steps of 10σ, starting from a 3σ level (30 mJy beam⁻¹ in 0.09 km s⁻¹ channels), and the −3σ contours are shown in blue. The peak intensity is 324 mJy beam⁻¹ at 7.68 km s⁻¹ (v_lsr + 0.68 km s⁻¹). The continuum peak position is indicated with a cross and the beam is shown in the bottom left corner of the bottom left panel. Channel velocities with respect to the systemic velocity of v_lsr ≈ 7.0 km s⁻¹ are listed in the top right corner of each panel. For the adopted distance to IRAS2A, 1′′ corresponds to 250 AU.