Integrated emission maps of HC₃N, including the ground-state (J = 39 − 38, v = 0) and vibrationally excited (J = 39 − 38, v₇ = 1e and 1f) lines (top two panels), and the detected ¹³C and ¹⁵N isotopologues (bottom two panels). The contour interval is 5σ for the HC₃N v = 0 and v₇ = 1 lines, and 3σ for the isotopologues, where σ is the rms noise level. Wire frame shows Titan’s solid body, with 22.°5 increments in latitude and 30° in longitude. Ellipses (lower left) indicate the spatial resolution.