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The ASKAP First Large Absorption Survey in HI (FLASH) is a large-area search for neutral hydrogen in and around distant galaxies at redshift 0.4 < z < 1.0, a cosmic epoch where our knowledge of the HI content of galaxies remains patchy and incomplete. FLASH has two main science goals: to probe the redshift evolution of the neutral gas content of galaxies, and to investigate gas accretion and feedback processes in active galactic nuclei. Radio searches in the HI 21-cm line are unaffected by dust extinction, and FLASH provides one of the first genuine ‘HI-selected’ galaxy samples at intermediate redshift. I will give an update on the status of the survey and present some new science results from papers recently submitted or in preparation. I will also outline the prospects for the full (24,000 square degree) ASKAP FLASH survey which is due for completion in 2028. |
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