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Radiative transfer model of a high-mass protostar embedded in a clumpy envelope:


Indebetouw, Whitney, Johnson, & Wood 2006 ApJ 636, 362
Whitney, Indebetouw, Bjorkman, & Wood 2005 ApJ 217, 1177
Whitney, Wood, Bjorkman, & Cohen 2003 ApJ 598, 1079
Whitney, wood, Bjorkman, & Wolff 2003 ApJ 591, 1049

RT model of an embedded cluster clearing its natal envelope: