All Outputs (3)

Stellar Evolution at Low Metallicity (2007)
Journal Article
Hirschi, R., Chiappini, C., Meynet, G., Maeder, A., & Ekstrom, S. (2007). Stellar Evolution at Low Metallicity. Proceedings of the International Astronomical Union, 3(S250), https://doi.org/10.1017/S1743921308020528

Massive stars played a key role in the early evolution of the Universe. They formed with the first halos and started the re-ionisation. It is therefore very important to understand their evolution. In this review, we first recall the effect of metall... Read More about Stellar Evolution at Low Metallicity.

Mass loss and very low-metallicity stars (2007)
Journal Article
Hirschi, R., Chiappini, C., Meynet, G., Ekstrom, S., & Maeder, A. (2007). Mass loss and very low-metallicity stars. AIP conference proceedings, 948, 397–404. https://doi.org/10.1063/1.2818999

Mass loss plays a dominant role in the evolution of massive stars at solar metallicity. After discussing different mass loss mechanisms and their metallicity dependence, we present the possibility of strong mass loss at very low metallicity. Our mode... Read More about Mass loss and very low-metallicity stars.

GRB progenitors at low metallicities (2007)
Journal Article
Hirschi, R., Meynet, G., & Maeder, A. (2007). GRB progenitors at low metallicities. IL NUOVO CIMENTO B, 10-11, 1183-1187. https://doi.org/10.1393/ncb/i2007-10237-6

We calculated pre-supernova evolution models of single rotating massive stars. These models reproduce observations during the early stages of the evolution very well, in particular Wolf--Rayet (WR) populations and ratio between type II and type Ib,c... Read More about GRB progenitors at low metallicities.