Searching for self-enrichment in Cygnus OB2

Berlanas, S. R.; Herrero, A.; Comerón, Fernando; Pasquali, Anna; Simón-Díaz, S.
Referencia bibliográfica

The Lives and Death-Throes of Massive Stars, Proceedings of the International Astronomical Union, IAU Symposium, Volume 329, pp. 386-386

Fecha de publicación:
11
2017
Número de autores
5
Número de autores del IAC
3
Número de citas
0
Número de citas referidas
0
Descripción
Cygnus OB2 is a rich and relatively close (d~1.4 kpc) OB association in our Galaxy. It represents an ideal testbed for our theories about self-enrichment processes produced by pollution of the interstellar medium by successive generations of massive stars. Comerón & Pasquali (2012, A&A, 543, A101) found a correlation between the age of young stellar groups in Cygnus OB2 and their Galactic longitude. If is associated with a chemical composition gradient, it could support these self-enrichment processes.