Extended Main-sequence Turn-off in Galactic Open Clusters

Ultraviolet photometry has revealed that young open clusters in the Milky Way display extended main sequence turn-off in the colour magnitude diagram.

school Student intake
This project is open for Bachelor and Honours students
label Research theme
Galactic archaeology
Stellar and planetary astronomy
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About

Image Credit: Adapted from Marino et al. 2017 and Cordoni et al. 2018 - Astrophysical Journal

Ultraviolet photometry has revealed that young open clusters in the Milky Way display extended main sequence turn-off in the colour magnitude diagram. The origin of this phenomenon is still unknown, but thought to originate from different rotation rates among stars. You will combine photometry from the Gaia and SkyMapper surveys to carry a comprehensive search of open clusters displaying extended main-sequence turn-off. Stellar spectra from the GALAH survey will then be used to quantify stellar rotation, and to gain further understanding on the physics behind this phenomenon.

Members

Supervisor

Associate Professor Luca Casagrande

Associate Director IDEA