Results of TRANSPHERE-1D radiative transfer calculations for a 10 M_⊙ core. The black lines represent the protostellar cases with varying levels of the B+D ISRF (see text). The dotted line has no ISRF, the solid line shows a “standard” B+D ISRF, and the dashed line shows the case for a ten times (uniformly) amplified B+D ISRF. The red lines represent the case for starless cores, and are for the same ISRF cases.