19–23 Aug 2024
Nicolaus Copernicus Astronomical Center, Warsaw, Poland
Europe/Warsaw timezone

Clues on the formation of massive star clusters from stellar rotation

P9
19 Aug 2024, 16:46
2m
Main Lecture Hall (Nicolaus Copernicus Astronomical Center, Warsaw, Poland)

Main Lecture Hall

Nicolaus Copernicus Astronomical Center, Warsaw, Poland

Bartycka 18, 00-716 Warsaw Poland

Speaker

Sebastian Kamann (Liverpool John Moores University)

Description

Using MUSE spectroscopy, we have recently revealed the existence of distinct populations of slowly and fast rotating stars in young (<2 Gyr) massive (10^5 solar masses) star clusters in the Magellanic Clouds. The differences in the stellar angular momenta naturally explain peculiar features observed in the colour-magnitude diagrams of the clusters, such as split main sequences or extended main-sequence turn-offs, without requiring that the clusters experienced extended periods of star formation. However, the origin of the bimodal stellar spin distribution is being still debated, and competing scenarios have been proposed. In this poster, I will present our results and explain their implication for our understanding of the formation of massive star clusters.

Affliation Liverpool John Moores University
Current Position Senior Scientist or Faculty

Primary author

Sebastian Kamann (Liverpool John Moores University)

Presentation materials