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A Ly-alpha Emitter with an Extremely Large Rest-frame Equivalent Width of ~900A at z=6.5: A Candidate of Population III-dominated Galaxy?
Nobunari Kashikawa, Tohru Nagao, Jun Toshikawa +13
We have identified a very interesting Ly-alpha emitter, whose Ly-alpha emission line has an extremely large observed equivalent width of EW_0=436^{+422}_{-149}A, which corresponds…
A Search for z=7.3 Lyα Emitters behind Gravitationally Lensing Clusters
Kazuaki Ota, Johan Richard, Masanori Iye +3
We searched for z=7.3 Lya emitters (LAEs) behind two lensing clusters, Abell 2390 and CL 0024, with the Subaru Telescope Suprime-Cam and a narrowband NB1006 (FWHM ~ 21 nm centered…
Discovery of a protocluster at z~6
Jun Toshikawa, Nobunari Kashikawa, Kazuaki Ota +10
We report the discovery of a protocluster at z~6 containing at least eight cluster member galaxies with spectroscopic confirmations in the wide-field image of the Subaru Deep Field…