402 citations · 1.9k across the 58 of their papers we have counts for
5 papers · 1 filter
High resolution spectroscopic follow-up of the most metal-poor candidates from SkyMapper DR1.1
D. Yong, G. S. Da Costa, M. S. Bessell +13
We present chemical abundances for 21 elements (from Li to Eu) in 150 metal-poor Galactic stars spanning 4.1 [Fe/H] 2.1. The targets were selected from the SkyMapper…
R-Process elements from magnetorotational hypernovae
D. Yong, C. Kobayashi, G. S. Da Costa +11
Neutron-star mergers were recently confirmed as sites of rapid-neutron-capture (r-process) nucleosynthesis. However, in Galactic chemical evolution models, neutron-star mergers alo…
Stellar Metallicities from SkyMapper Photometry II: Precise photometric metallicities of 280,000 giant stars with [Fe/H] in the Milky Way
Anirudh Chiti, Anna Frebel, Mohammad K. Mardini +3
The Milky Way's metal-poor stars are nearby ancient objects that are used to study early chemical evolution and the assembly and structure of the Milky Way. Here we present reliabl…
The Metal-Poor Metallicity Distribution of the Ancient Milky Way
Anirudh Chiti, Mohammad K. Mardini, Anna Frebel +1
We present a low metallicity map of the Milky Way consisting of 111,000 giants with [Fe/H] 0.75, based on public photometry from the second data r…
Rapid accretion state transitions following the tidal disruption event AT2018fyk
Thomas Wevers, Dheeraj R. Pasham, Sjoert van Velzen +7
Following a tidal disruption event (TDE), the accretion rate can evolve from quiescent to near-Eddington levels and back over months - years timescales. This provides a unique oppo…