We report the Subaru Hyper Suprime-Cam (HSC) discovery of two Ly blobs (LABs), dubbed z70-1 and z49-1 at z = 6.965 and z = 4.888, respectively, that are Ly emitters with a bright () and spatially extended Ly emission, and present the photometric and spectroscopic properties of a total of seven LABs: The two new LABs and five previously known LABs at z = 5.7-6.6. The z70-1 LAB shows extended Ly emission with a scale length of 1.4 ± 0.2 kpc, about three times larger than the UV continuum emission, making z70-1 the most distant LAB identified to date. All of the seven LABs, except z49-1, exhibit no active galactic nucleus (AGN) signatures such as X-ray emission, N v λ1240 emission, or Ly line broadening, while z49-1 has a strong C iv λ1548 emission line indicating an AGN on the basis of the UV-line ratio diagnostics. We carefully model the point-spread functions of the HSC images and conduct two-component exponential profile fitting to the extended Ly emission of the LABs. The Ly scale lengths of the core (star-forming region) and halo components are r c = 0.6-1.2 kpc and r h = 2.0-13.8 kpc, respectively. The relations between the scale lengths and galaxy properties (Ly luminosity L Ly, Ly rest-frame equivalent width EW0, and UV continuum magnitude M UV) of our LABs are similar to those of Ly halos (LAHs) identified around star-forming galaxies found previously by the Very Large Telescope/MUSE at similar redshifts, suggesting that our LABs are likely the bright version of high-z LAHs.
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