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Minor Contribution of Quasars to Ionizing Photon Budget at z~6: Update on Quasar Luminosity Function at the Faint-end with Subaru/Suprime-Cam
Masafusa Onoue, Nobunari Kashikawa, Chris J. Willott +16
We constrain the quasar contribution to cosmic reionization based on our deep optical survey of z~6 quasars down to z_R=24.15 using Subaru/Suprime-Cam in three UKIDSS-DXS fields co…
No Ly emitters detected around a QSO at z=6.4: Suppressed by the QSO?
Tomotsugu Goto, Yousuke Utsumi, Satoshi Kikuta +3
Understanding how QSO's UV radiation affects galaxy formation is vital to our understanding of reionization era. Using a custom made narrow-band filter, , on Subaru/Suprime-…
Active Galactic Nucleus Environments and Feedback to Neighboring Galaxies at Probed by Lyman-Alpha Emitters
Satoshi Kikuta, Masatoshi Imanishi, Yoshiki Matsuoka +3
Active galactic nuclei (AGNs) in the high-redshift Universe are thought to reside in overdense environments. However, recent works provide controversial results partly due to the u…
Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 Quasars and Luminous Galaxies at 5.7 < z < 6.8
Yoshiki Matsuoka, Masafusa Onoue, Nobunari Kashikawa +43
We present spectroscopic identification of 32 new quasars and luminous galaxies discovered at 5.7 < z < 6.8. This is the second in a series of papers presenting the results of the…