54 citations · 264 across the 18 of their papers we have counts for
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astro-ph.GA2017★ 6 cited
Optical Spectroscopy of Candidates for Quasars at 3<z<5.5 from the XMM-Newton X-ray survey. A distant X-ray Quasar at z=5.08
G. A. Khorunzhev, R. A. Burenin, S. Yu. Sazonov +2
We present the results of optical spectroscopy for 19 quasar candidates at photometric redshifts $\zphot \gtrsim 3$, \Nobs \ of which enter into the Khorunzhev et al.~(2016) catalo…
astro-ph.GA2017★ 8 cited
Catalog of Candidates for Quasars at 3 < z < 5.5 Selected among X-Ray Sources from the 3XMM-DR4 Survey of the XMM-Newton Observatory
G. A. Khorunzhev, R. A. Burenin, A. V. Meshcheryakov +1
We have compiled a catalog of 903 candidates for type 1 quasars at redshifts 3<z<5.5 selected among the X-ray sources of the serendipitous XMM-Newton survey presented in the 3XMM-D…