Asteroseismic ages from TESS calibrate [Y/Mg] and [C/N] chemical clocks, revealing a radially dependent [Y/Mg]-age relation that is steeper in the outer Galactic disc and flatter inward, with NLTE corrections and evolutionary stage accounting required for accuracy.
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The paper identifies five major open questions in nucleosynthesis and notes new tools such as large-scale chemical cartography, astrometric and asteroseismic data, gravitational wave detections, 3-D simulations, and improved lab measurements that will aid progress.
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Calibration of the [C/N] and [Y/Mg] chemical clocks with asteroseismic ages from the TESS space mission
Asteroseismic ages from TESS calibrate [Y/Mg] and [C/N] chemical clocks, revealing a radially dependent [Y/Mg]-age relation that is steeper in the outer Galactic disc and flatter inward, with NLTE corrections and evolutionary stage accounting required for accuracy.
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The Origin of Elements Across Cosmic Time: Astro2020 Science White Paper
The paper identifies five major open questions in nucleosynthesis and notes new tools such as large-scale chemical cartography, astrometric and asteroseismic data, gravitational wave detections, 3-D simulations, and improved lab measurements that will aid progress.