214 citations · 1.6k across the 43 of their papers we have counts for
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astro-ph.CO2010★ 54 cited
Probing the faint end of the quasar luminosity function at z ~ 4 in the COSMOS field
H. Ikeda, T. Nagao, K. Matsuoka +16
We searched for quasars that are ~ 3 mag fainter than the SDSS quasars in the redshift range 3.7 < z < 4.7 in the COSMOS field to constrain the faint end of the quasar luminosity f…
astro-ph.CO2010★ 56 cited
The mass-metallicity relation of SDSS quasars
Kenta Matsuoka, Tohru Nagao, Alessandro Marconi +2
Active galactic nuclei (AGNs) are characterized by a clear correlation between luminosity and metallicity (L_AGN-Z_AGN relation). The origin of this correlation is not clear. It ma…