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The ages of young star clusters, massive blue stragglers and the upper mass limit of stars: analysing age dependent stellar mass functions
Fabian R. N. Schneider, Robert G. Izzard, Selma E. de Mink +7
Massive stars rapidly change their masses through strong stellar winds and mass transfer in binary systems. We show that such mass changes leave characteristic signatures in stella…
The VLT-Flames Tarantula Survey: an overview of the VFTS results so far
Hugues Sana, the VLT-Flames Tarantula consortium
The VLT-FLAMES Tarantula Survey (VFTS) has acquired multi-epoch spectroscopy of over 800 O, B and Wolf-Rayet stars in the 30 Doradus region with the aim to investigate a number of…
X-ray properties of the young open clusters HM1 and IC2944/2948
Yael Naze, Gregor Rauw, Hugues Sana +1
Using XMM data, we study for the first time the X-ray emission of HM1 and IC2944/2948. Low-mass, pre-main-sequence objects with an age of a few Myr are detected, as well as a few b…
R144 revealed as a double-lined spectroscopic binary
H. Sana, T. van Boeckel, F. Tramper +7
R144 is a WN6h star in the 30 Doradus region. It is suspected to be a binary because of its high luminosity and its strong X-ray flux, but no periodicity could be established so fa…
Massive Binary Stars and Self-Enrichment of Globular Clusters
Robert G. Izzard, Selma E. de Mink, Onno R. Pols +3
Globular clusters contain many stars with surface abundance patterns indicating contributions from hydrogen burning products, as seen in the anti-correlated elemental abundances of…