Abstract:We report our on-going observational project to search for population III (Pop III) stars in high-z galaxies. We searched Lyα emitters (LAEs) with a large equivalent width (EW), by our new selection technique ‘NB921-depressed i′-dropout selection’. We found eight photometric candidates and spectroscopically identified five LAEs with EW0(Lyα) > 100 Å. We then carried out a very deep near-infrared spectroscopy for a LAE among the above five, to search for the redshifted He iiλ1640 emission from Pop III stars … Show more
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