680 citations · 8.8k across the 113 of their papers we have counts for
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Conditions for direct black hole seed collapse near a radio-loud quasar 1 Gyr after the Big Bang
Roderik A. Overzier
Observations of luminous quasars and their supermassive black holes at z~6 suggest that they formed at dense matter peaks in the early universe. However, few studies have found def…
The environment of QSO triplets at 1 z 1.5
Marcelo C. Vicentin, Pablo Araya-Araya, Laerte Sodré +3
We present an analysis of the environment of six QSO triplets at 1 z 1.5 by analyzing multiband (r,i,z, or g,r,i) images obtained with Megacam at the CFHT tel…
The miniJPAS survey: a preview of the Universe in 56 colours
S. Bonoli, A. Marín-Franch, J. Varela +166
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will soon start to scan thousands of square degrees of the northern extragalactic sky with a unique…
Tracing the formation history of galaxy clusters into the epoch of reionization
Roderik Overzier, Nobunari Kashikawa
The large-scale overdensities of galaxies at z~2-7 known as protoclusters are believed to be the sites of cluster formation, and deep, wide survey projects such as the Large Synopt…
Surveying Galaxy Proto-clusters in Emission: A Large-scale Structure at z=2.44 and the Outlook for HETDEX
Yi-Kuan Chiang, Roderik A. Overzier, Karl Gebhardt +12
Galaxy proto-clusters at z >~ 2 provide a direct probe of the rapid mass assembly and galaxy growth of present day massive clusters. Because of the need of precise galaxy redshifts…
A derivation of masses and total luminosities of galaxy groups and clusters in the maxBCG catalogue
Robert N. Proctor, Claudia Mendes de Oliveira, Luiz Azanha +2
We report the results of a multi-waveband analysis of the masses and luminosities of 600 galaxy groups and clusters identified in the maxBCG catalogue. These data are intende…