569 citations · 2.1k across the 27 of their papers we have counts for
Showing 2003Show all
2 papers · 1 filter
astro-ph2003★ 75 cited
Occurrence and Global Properties of Narrow CIV lambda 1549 Absorption Lines in Moderate-Redshift Quasars
M. Vestergaard
A statistical study is presented of (a) the frequency of narrow CIV lambda 1549 absorption lines in 1.5 <~ z <~ 3.6 radio-quiet and radio-loud quasars, and of (b) the UV and radio…
astro-ph2003★ 204 cited
Early Growth and Efficient Accretion of Massive Black Holes at High Redshift
M. Vestergaard
Black-hole masses of the highest redshift quasars (4 <~ z <~ 6) are estimated using a previously presented scaling relationship, derived from reverberation mapping of nearby quasar…