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    • Keywords


      Galaxy evolution, High-redshift galaxies, atomic hydrogen, HI 21cm line, GMRT, Govind Swarup.

    • Abstract


      Atomic hydrogen is a fundamental constituent of galaxies, and is the primary fuel for star formation. Understanding how the atomic hydrogen content of galaxies evolves with time is thus critical to understanding galaxy evolution. In this article, we discuss how one measures the atomic hydrogen content of distant galaxies, and what these measurements tell us about the evolution of our Universe.

    • Author Affiliations


      Nissim Kanekar1 Aditya Chowdhury Jayaram N Chengalur

      1. National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Ganeshkhind Pune 411 007, India.
    • Dates


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