The origin of elements: the need for UV spectra

TL;DR

This paper emphasizes the crucial role of UV spectra in understanding the origins of elements, highlighting gaps in current knowledge about nucleosynthesis and the importance of UV observations for key elements.

Contribution

It underscores the necessity of UV spectra for studying element origins and discusses the impact of rotating massive stars and neutron-capture processes in nucleosynthesis.

Findings

UV spectra are essential for understanding key elements' origins.

Rotating massive stars influence nucleosynthesis outcomes.

UV observations are critical for studying neutron-capture elements.

Abstract

Thanks to the long-term collaborations between nuclear and astrophysics, we have good understanding on stellar nucleosynthesis, except for the elements around Ti and some neutron-capture elements. From the comparison between observations and Galactic chemical evolution models, it is necessary to have the rapid neutron-capture process associated with core-collapse supernovae, although the explosion mechanism is unknown. The impact of rotating massive stars is also shown in this paper. Many of the key elements can be exclusively obtained in the UV, and therefore without UV spectra it would not be possible to fully understand the origin of elements in the universe.