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Fig. 11

image

Example of large scale mapping of the Horsehead nebula region, performed in four hours, covering a 17.5′ × 12.5′ field. The lower left red circle show the 15′′ beam. We display two integrated channel maps at 9.511.3 km s-1 and 1315 km s-1, delineating the complex kinematics of the region. While strikingly prominent at optical wavelengths where it is seen as a dark patch, the Horsehead nebula [CII] emission is limited to the UV-illuminated edge of its PDR. The fine morphology of the IC 434 PDR interface displays beautifully.

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