Deep HI observations of cold gas inflow and outflow
Abstract
A major question in galaxy evolution is how galaxies acquire sufficient gas to sustain their star formation rates. HI observations with high angular resolution and sensitivity to very low column densities are some of the important observational ingredients that are currently still missing. Answers to these questions are necessary for a correct interpretation of observations of galaxy evolution in the high-redshift universe and will provide crucial input for the sub-grid physics in hydrodynamical simulations of galaxy evolutions. In this chapter we discuss the progress that has been made over the past years, describe the various processes that lead to inflow and outflow of gas, and discuss how SKA-Mid AA4 observations can contribute to further understanding these important aspects of galaxy evolution using deep observations of nearby individual disk and dwarf galaxies.
Cite
@article{arxiv.2606.28150,
title = {Deep HI observations of cold gas inflow and outflow},
author = {W. J. G. de Blok and D. B. Fisher and K. Tachihara and F. M. Maccagni and J. Wang and R. Enokiya and L. Chemin and T. Hayakawa and D. Kleiner and D. J. Pisano and S. H. Oh},
journal= {arXiv preprint arXiv:2606.28150},
year = {2026}
}
Comments
Published in Advancing Astrophysics with the SKAII (AASKAII),2026 (arXiv:2606.20366)