Bibcode
Berlanas, S. R.; Herrero, A.; Comerón, Fernando; Pasquali, Anna; Simón-Díaz, S.
Bibliographical reference
The Lives and Death-Throes of Massive Stars, Proceedings of the International Astronomical Union, IAU Symposium, Volume 329, pp. 386-386
Advertised on:
11
2017
Citations
0
Refereed citations
0
Description
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.