Galactic archaeology uncovers the dramatic history of our next-door neighbor, the Andromeda galaxy
The evolution of elemental abundances [X/Fe] for O, Mg, Si, S, Ar and Ca (as well as [α/Fe] ≡ ([O/Fe]+[Mg/Fe]+[Si/Fe]+[S/Fe]+[Ca/Fe])/5) against [Fe/H] for the fiducial model of M31’s old thicker-disk (lookback time > 4.5 Gyr). Credit: arXiv (2023). DOI: 10.48550/arxiv.2309.01707 Research led by the University of Hertfordshire has revealed the dramatic history of Andromeda, our
Nancie Ramage
October 13, 2023