Browsing Faculty of Natural Sciences by Subject "radio lines: galaxies"

Now showing items 1-3 of 3

    • An askap survey for hi absorption towards dust-obscured quasars 

      Glowacki, Marcin (Oxford Academic, 2019)
      Obscuration of quasars by accreted gas and dust, or dusty intervening galaxies, can cause active galactic nuclei (AGN) to be missed in optically selected surveys. Radio observations can overcome this dust bias. In particular, ...

    • HI intensity mapping with the MIGHTEE survey: power spectrum estimates 

      Sourabh, Paul; Santos, Mario; Townsend, Junaid (Monthly Notices of the Royal Astronomical Society, 2021)
      Intensity mapping (IM) with neutral hydrogen is a promising avenue to probe the large scale structure of the Universe. In this paper, we demonstrate that using the 64-dish MeerKAT radio telescope as a connected interferometer, ...

    • Measuring the H I mass function below the detection threshold 

      Jarvis, Matt; Pan, Hengxing; Allison, James (Oxford University Press, 2019-10-30)
      We present a Bayesian stacking technique to directly measure the H I mass function (HIMF) and its evolution with redshift using galaxies formally below the nominal detection threshold. We generate galaxy samples over ...