Large-scale time-series spectroscopy for stellar ages
Abstract
To date, Galactic Astronomy has largely concerned itself with astrophysical processes, and with the locations, space motions and compositions of objects. Consider, for example, the elucidation of the components of the Galaxy over the past decades, its mapping as enabled by Gaia and its predecessors, the photometric and spectroscopic characterization of innumerable astrophysical objects in various wavelength ranges, both from the ground and from space, and the expanding discovery and characterization of exoplanets; all focused on the current, static Galaxy. This White Paper proposes a dedicated program to derive stellar ages from time-series spectroscopy to hasten the transformation of this static conception into a dynamical one with age-labeled objects and events.
Keywords
Cite
@article{arxiv.2601.10240,
title = {Large-scale time-series spectroscopy for stellar ages},
author = {David Gruner and Sydney A. Barnes and Ansgar Reiners and Klaus G. Strassmeier and Cristina Chiappini and Jörg Weingrill and Michael Weber and Ilya Ilyin and Thomas Granzer and Özgün Adebali and Jean-Michel Désert and Marica Valentini and Dario Fritzewski and Paolo Ventura and Alfio Bonanno and Jose-Dias do Nascimento and Jorge Melendez and Santosh Joshi and Yong-Cheol Kim},
journal= {arXiv preprint arXiv:2601.10240},
year = {2026}
}
Comments
White Paper submitted to ESO for the "Expanding Horizons: Transforming Astronomy in the 2040s" Call