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Fig. 9.

image

Continuum-corrected Hα image of the CMa OB1 association observed during the Virginia Tech Spectral-Line Survey (VTSS). The color bar is the Hα emission in Rayleighs, i.e., in 106/4π photons/cm2/s/sr. The green lines represents the infrared emission of the bow shock as observed by WISE.

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