# Astro2020: Hot Drivers of Stellar Feedback from 10 to 10,000 pc

## TL;DR

This paper discusses the importance of hot gas in stellar feedback processes that influence galaxy formation, emphasizing how next-generation X-ray observatories can advance understanding through precise measurements.

## Contribution

It highlights the potential of future X-ray observations to clarify the role of hot gas in stellar feedback across multiple scales.

## Key findings

- Hot gas plays a crucial role in stellar feedback.
- Next-generation X-ray observatories will enable detailed measurements.
- Understanding hot gas improves models of galaxy evolution.

## Abstract

Stellar feedback -- stars regulating further star formation through the injection of energy and momentum into the interstellar medium -- operates through a complex set of processes that originate in star clusters but shape entire galaxies. A mature theory of stellar feedback is essential to a complete theory of star and galaxy formation, but the energy and momentum injected by hot gas into its surroundings remains unclear. With a next-generation X-ray observatory, breakthrough progress can be made through precision measurements of the temperature, density, velocity, and abundances of hot gas on scales of star clusters to galactic superwinds.