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Fig. 3


Overview of the new H I  observations of NGC 7252. Top: total H I  map at 25′′ resolution overlaid on the ESO MPG R-band image. Contours are at 0.3 (~3σ), 0.6, 1.2, and 2.4 M pc-2. The H I  beam is shown to the bottom-right. The bar to the bottom-left corresponds to 20 kpc. Middle: H I  velocity field at 25′′ resolution. The crosses mark the location of the putative TDGs. The dashed lines show the path followed to obtain the PV diagrams. Bottom: PV diagrams along the east tail (left) and north-west tail (right). The vertical lines correspond to the crosses in the velocity field. Contours range from 2σ to 8σ in steps of 1σ = 0.7 mJy beam-1. See Sect. 4.1 for details.

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