Episode 22 - ORCs, rings, and Galactic histories

StarXiv: a podcast discussing the latest astronomy papers di Michelle and Payel

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In this episode, Payel and Nicole discuss what happens to the metallicity gradient of a satellite galaxy after it merges with its host, the existence of intermediate-age RR lyrae and radio rings, the possibility of determining the history of the inner Milky Way from radially migrated stars, and the possibility of finding more Einstein rings using a new approach that utilises both spectra and images.

From order to chaos: the blurred out metallicity gradient of the Gaia-Enceladus/Sausage progenitor - Andreia Carillo et al.

First direct detection of an RR Lyrae star conclusively associated with an int ... 

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