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Full-Text Articles in Astrophysics and Astronomy
Where Did The First Generation Of Stars Form In The Universe, Long Yan Yung, Aparna Venkatesan
Where Did The First Generation Of Stars Form In The Universe, Long Yan Yung, Aparna Venkatesan
Creative Activity and Research Day - CARD
The first generation of stars in the universe are expected to contain no heavy elements beyond helium, and are considered “metal-free” Population III stars (or Pop III). These metal-free stars in the early universe are predicted to have hard ionizing photon spectra and unique element yields from their supernovae, leaving signatures through the reionization of the intergalactic medium and the metal enrichment of gas in the early universe. Here, we examine the metal abundances in a variety of systems in the nearby universe, from very metal-poor Galactic halo stars to ultra-faint dwarf spheroidal galaxies, and compare them with the latest …