Abstract : The authors present four groups which contain several massive young objects in different evolutionary states, mainly Herbig Ae/Be stars and compact H II regions. They try to ascertain the exact nature of the components of the group, via photometry and spectroscopy. This study is illustrated by the case of AFGL 4029.
L. Deharveng, Annie Zavagno, J. Caplan. Young stellar objects in groups.. The Nature and Evolutionary Status of Herbig Ae/Be Stars, 1993, Amsterdam, Netherlands. pp.344-346. ⟨hal-03562803⟩