[CII] integrated intensity map in BR 1202-0725 with identification of the north and south sources. The rms noise is 0.6 Jy km s^-1. The synthesized beam (0.8′′ × 0.7′′) is indicated by a filled black ellipse in the lower left corner of the plot. The continuum emission of BR 1202-0725 a 334 GHz is overplotted as white contours. The contour levels are logarithmic [–3.4, –3.2, –3.0, –2.6, 2.2, 2.0, 1.9] of σ with σ = 0.2 mJy. The rms noise is 0.2 mJy beam^-1.