Submillimeter-wave CI spectral lines from the NGC 1333 region

We present large (30' x 40') maps in the C-0 P-3(1)-P-3(0) ([C I]; 492 GHz) and CO J = 3-2 (346 GHz) spectral lines of the NGC 1333 star-forming complex. We also report detections of the C-0 P-3(2)-P-3(1) (809 GHz) spectral line from 3 x 3 positions centered on HH 12. The overall extents of [C I] and CO J = 3-2 emission are similar to those of (CO)-C-13 and (CO)-O-18 J = 1 0 emission. The CO J = 3-2 intensity peak is adjacent to the illuminating star SVS 3, while the [C I] intensity peaks at 50 southwest of the reflection nebula, filling a hollow surrounded by a C-shaped dense molecular shell. We suggest that the observed [C I] distributions might be the result of nonequilibrium chemistry on the basis of the time-dependent chemical simulation. A huge expanding H I shell associated with the NGC 1333 cloud lends further support to this notion.