Bibcode
Tenorio-Tagle, G.; Muñoz-Tuñón, C.; Silich, S.; Cassisi, S.
Bibliographical reference
The Astrophysical Journal Letters, Volume 814, Issue 1, article id. L8, 5 pp. (2015).
Advertised on:
11
2015
Citations
23
Refereed citations
21
Description
Our arguments deal with the early evolution of Galactic globular
clusters and show why only a few of the supernovae (SNe) products were
retained within globular clusters and only in the most massive cases (M
≥ 106 M⊙), while less massive clusters were
not contaminated at all by SNe. Here, we show that SN blast waves
evolving in a steep density gradient undergo blowout and end up
discharging their energy and metals into the medium surrounding the
clusters. This inhibits the dispersal and the contamination of the gas
left over from a first stellar generation. Only the ejecta from
well-centered SNe that evolve into a high-density medium available for a
second stellar generation (2SG) in the most massive clusters would be
retained. These are likely to mix their products with the remaining gas,
eventually leading in these cases to an Fe-contaminated 2SG.
Related projects
Starbursts in Galaxies GEFE
Starsbursts play a key role in the cosmic evolution of galaxies, and thus in the star formation (SF) history of the universe, the production of metals, and the feedback coupling galaxies with the cosmic web. Extreme SF conditions prevail early on during the formation of the first stars and galaxies, therefore, the starburst phenomenon constitutes a
Casiana
Muñoz Tuñón