Possible compact outflow or wind bow shock around BN star. Left: spatial distribution of the redshifted [O I] 63 µm emission in the v_LSR range from +20 to +25 km s⁻¹. This map (in RA and Dec) shows extended emission following the wide-angle H₂ outflow and a possible spatially unresolved outflow around BN, revealed as a distinct broad spectral component. Right: [O I] 63 µm spectra toward Source I (red), BN (blue), and Peak 1 (black). Only the blue spectrum shows the broad spectral feature around the LSR velocity of BN (dashed green line).