Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..374..163c&link_type=abstract
From Stars to Galaxies: Building the Pieces to Build Up the Universe. ASP Conference Series, Vol. 374, proceedings of the confer
Astronomy and Astrophysics
Astrophysics
Scientific paper
Globular clusters are fascinating objects nearly as old as the Universe and which give insight on a large variety of astrophysical issues. They bear witness to the formation and early evolution of galaxies. They represent unique laboratories for dynamical processes that occur on timescales shorter than the Hubble time. Last but not least, they are invaluable laboratories to test the stellar evolution theory. However, and despite their broad astrophysical importance, their origin and formation processes still remain uncertain.
Clues on the early stages of globular cluster evolution may however be found in the peculiar abundance patterns of their long-lived low-mass stars. Recent spectroscopic observations of these objects provided evidence that their abundance anomalies in light elements from carbon to aluminium result from early pollution of the intracluster gas by more massive and faster evolving stars.
Here we discuss the possibility that the Wind of Fast Rotating Massive Stars could be at the origin of these abundance anomalies.
Charbonnel Corinne
Decressin Thibault
Ekström Sanna
Meynet George
Prantzos Nikos
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