HI Galaxy Science

This working group is focused on the history of gas in our universe through the study of atomic HI line emission and absorption, mainly at redshifts from ~0 to ~1.5.

HI Galaxy Science Working Group Introduction

The HI Science Working Group is focused on studying the formation and evolution of galaxies by mapping the 21-cm spectral line of neutral atomic hydrogen (HI) in absorption and emission, over cosmic time.

Using SKA we will conduct deep HI observations of millions of galaxies out to redshift z>1. Our primary goals are to investigate the structure and dynamics of cold gas in and around galaxies, explore the gas-halo interface, discover plumes and streams of intergalactic gas, as well as map large-scale galaxy structures and their peculiar motions.

SWG Banner - Hi Galaxy

HI Galaxy Science Working Group Documentation

The presentations from the Science Assessment Workshop can be found here.

The HI presentations from the 2014 SKA Science Meeting can be found here.

The HI Banner is here

Related 2015 “Advancing Astrophysics with the Square Kilometre Array” Chapters

  • See appropriate section here

Related 2004 “Science with the Square Kilometre Array” Chapters

  • “Galaxy evolution, cosmology and dark energy with the Square Kilometre Array” Rawlings et al.
  • “Relativistic jets” Bicknell et al.
  • “Compact radio cores: from the firstblack holes to the last” Falcke et al.
  • “The accretion history of the universe with the SKA” Jarvis and Rawlings
  • “Deep radio continuum studies with the SKA: evolution of radio AGN populations” Jackson
  • “Disks, tori and cocoons: emission and absoprtion diagnostics of AGN environments” Morganti et al.
  • “Surveys of compact extragalactic radio sources” Gurvits
  • “From gas to galaxies” vand der Hulst et al.
  • “Predictions for the SKA from hierachical galaxy formation models” Baugh et al.
  • “Searching for high redshift centimeter wave continuum, line and maser emission using the Square Kilometre array” Blain et al.
  • “21 cm absorption stiudies with the Square Kilometre Array” Kanekar & Briggs

Working Group Membership

Members of the the HI Galaxy Science Working group can be found here

Please contact the co-chairs if you are interested in joining the group.

The current co-chairs are:

Membership details can be found here

    Previous Chairs

    • Paolo Serra 2020-2022
    • Sarah Blyth 2017-2021
    • Lourdes Verdes-Montenegro 2017-2019
    • Erwin de Blok 2015-2017
    • Martin Meyer 2015-2017
    • Lister Staveley-Smith 2013-2015
    • Tom Oosterloo 2013-2015
    Last modified on 05 August 2022