Top: NOEMA maps per velocity channel maps of ¹²CO J = 2–1 from 89 Her. The beam size (HPBW) is 1.″02 × 0.″83, the major axis being oriented at PA = 115°. The contour spacing is logarithmic: ± 70, 140, 280, and 560 mJy beam⁻¹ with a maximum emission peak of 870 mJy beam⁻¹. Bottom: same as in top but for ¹³CO J = 2–1. The beam size (HPBW) is 0.″74 × 0.″56, the major axis being oriented at PA = 28°. The contour spacing is logarithmic: ± 11, 22, 44, 88, and 144 mJy beam⁻¹ with a maximum emission peak of 225 mJy beam⁻¹. The LSR velocity is indicated in the upper left corner of each velocity-channel panel and the beam size is shown in the last panel.