Spectra of CO(1–0), CO(3–2), HCO⁺(1–0), HCN(1–0), HCO⁺(4–3), and HCN(4–3) are shown from top to bottom in each grid, in units of T_MB (K). Spectra are referenced to the LSR velocity reference system and the radio definition for the Doppler shift is adopted. The spectra shown here correspond exactly to the red-rectangle region in Fig. 1. The offset from the center position in units of arcsec is annotated in the top corner of each panel. The offset (0,0) corresponds to the galaxy’s center, marked by an orange circle in Fig. 1. Offsets are positive toward the northeast along the major axis and toward the northwest along the minor axis, while negative offsets represent the opposite directions. The legend at top of figure shows the scaling factors for CO, HCN(1–0), and HCO⁺(1–0). The velocity resolutions for HCN(4–3), HCO⁺(4–3), HCN(1–0), and HCO⁺(1–0) are ∼13 km s⁻¹. For CO(1–0) and CO(3–2), the velocity resolutions are 10 km s⁻¹ and 19 km s⁻¹, respectively. All data are re-sampled to a pixel size of 14 arcsec, corresponding to ∼240 pc.