101 citations · 870 across the 50 of their papers we have counts for
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Massive stars evolution: feedbacks in low-Z environment
Sylvia Ekström, Georges Meynet, Cyril Georgy +3
Massive stars are the drivers of the chemical evolution of dwarf galaxies. We review here the basics of massive star evolution and the specificities of stellar evolution in low-Z e…
A direct measurement of the 17O(a,g)21Ne reaction in inverse kinematics and its impact on heavy element production
M. P. Taggart, C. Akers, A. M. Laird +33
During the slow neutron capture process in massive stars, reactions on light elements can both produce and absorb neutrons thereby influencing the final heavy element abundances. A…
Neutron-capture elements in dwarf galaxies I: Chemical clocks & the short timescale of the r-process
Ása Skúladóttir, Camilla Juul Hansen, Stefania Salvadori +1
The heavy elements (Z>30) are created in neutron-capture processes which happen at very different nucleosynthetic sites. To study them in an environment different from the Milky Wa…
Inferring the velocity of early massive stars from the abundances of extremely metal-poor stars
Arthur Choplin, Nozomu Tominaga, M. N. Ishigaki
The nature of the first massive stars may be inferred by investigating the origin of the extremely metal-poor (EMP) stars, likely formed from the ejecta of one or a few previous ma…
Grids of stellar models with rotation IV. Models from 1.7 to 120 Msun at a metallicity Z = 0.0004
Jose H. Groh, Sylvia Ekström, Cyril Georgy +8
The effects of rotation on stellar evolution are particularly important at low metallicity, when mass loss by stellar winds diminishes and the surface enrichment due to rotational…
The CORALIE survey for southern extrasolar planets XVIII. Three new massive planets and two low mass brown dwarfs at separation larger than 5 AU
E. L. Rickman, D. Ségransan, M. Marmier +36
Context. Since 1998, a planet-search around main sequence stars within 50~pc in the southern hemisphere has been carried out with the CORALIE spectrograph at La Silla Observatory.…