Sequential Star Formation near the HII regions Sh 217 and Sh 219

L. Salas , I. Cruz-González (1) , L. Deharveng (2) , A. Zavagno , J. Caplan (2) , A. Porras (3)

1 UNAM - Universidad Nacional Autónoma de México = National Autonomous University of Mexico
2 LAM - Laboratoire d'Astrophysique de Marseille
3 IBDM - Institut de Biologie du Développement de Marseille

The HII regions Sh 217 and Sh 219 are textbook examples of a Stromgren sphere surrounded by an annular photodissociation region (PDR). The physical conditions present in this PDR have favored the formation of a second generation cluster, containing massive stars.

Domains: Sciences of the Universe [physics]

L. Salas, I. Cruz-González, L. Deharveng, A. Zavagno, J. Caplan, et al.. Sequential Star Formation near the HII regions Sh 217 and Sh 219. Hot Star Workshop III: The Earliest Phases of Massive Star Birth, 2001, Colorado, Barbados. pp.361. ⟨hal-03562778⟩