Spectra extracted in a beam toward the continuum peak position (left panels) and the H¹³CO⁺ peak position (~2′′ NE of the continuum peak, right panels). The top panels show the H¹³CO⁺ J = 3 − 2 transition and the bottom panels the HO 3_1,3 − 2_2,0 transition. The two spectra for each species are shown on the same vertical scale. The systemic velocity is indicated by the vertical dotted line at v_lsr ≈ 7 km s⁻¹.