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Disappearance of the extended main sequence turn-off in intermediate age clusters as a consequence of magnetic braking
C. Georgy, C. Charbonnel, L. Amard +8
Extended MS turn-offs are features commonly found in the colour-magnitude diagrams of young and intermediate age (less than about 2 Gyr) massive star clusters, where the MS turn-of…
Linking the rotation of a cluster to the spins of its stars: The kinematics of NGC6791 and NGC6819 in 3D
Sebastian Kamann, Nate Bastian, Mark Gieles +2
The physics governing the formation of star clusters is still not entirely understood. One open question concerns the amount of angular momentum that newly formed clusters possess…
The double Blue Straggler sequence in NGC2173: a field contamination artefact
E. Dalessandro, F. R. Ferraro, N. Bastian +3
Here we discuss the case of the double Blue Straggler Star (BSS) sequence recently detected in the young stellar cluster NGC 2173 in the Large Magellanic Cloud by Li et al (2018).…
Fossil stellar streams and their globular cluster populations in the E-MOSAICS simulations
Meghan E. Hughes, Joel Pfeffer, Marie Martig +4
Stellar haloes encode a fossil record of a galaxy's accretion history, generally in the form of structures of low surface brightness, such as stellar streams. While their low surfa…
Dynamical cluster disruption and its implications for multiple population models in the E-MOSAICS simulations
Marta Reina-Campos, J. M. Diederik Kruijssen, Joel L. Pfeffer +2
Several models have been advanced to explain the multiple stellar populations observed in globular clusters (GCs). Most models necessitate a large initial population of unenriched…
Extended Main Sequence Turnoffs in Open Clusters as Seen by Gaia: I. NGC 2818 and the Role of Stellar Rotation
N. Bastian, S. Kamann, I. Cabrera-Ziri +5
We present an analysis of the relatively low mass (~M), ~Myr, Galactic open cluster, NGC~2818, using Gaia DR2 results combined with VLT/FLAMES spectros…