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6 papers · 2 filters
The Galaxy Environment of Quasars in the Clowes-Campusano Large Quasar Group at z~1.3
C. P. Haines, R. G. Clowes, L. E. Campusano
The Clowes-Campusano Large Quasar Group (LQG) is the largest known structure at high redshifts, with at least 18 quasars at z~1.3 forming a structure ~200 Mpc across. We are conduc…
The XMM-Newton Serendipitous Survey I. The role of XMM-Newton Survey Science Centre
M. G. Watson
This paper describes the performance of XMM-Newton for serendipitous surveys and summarises the scope and potential of the XMM-Newton Serendipitous Survey. The role of the Survey S…
The Galaxy Environment of a Quasar at z=1.226: A Possible Cluster Merger
C. P. Haines, R. G. Clowes, L. E. Campusano +1
We have conducted ultra-deep optical and deep near-infrared observations of a field around the z=1.226 radio-quiet quasar 104420.8+055739 from the Clowes-Campusano LQG of 18 quasar…
The Galaxy Environment of Quasars in the z~1.3 Clowes-Campusano Large Quasar Group
C. P. Haines, R. G. Clowes, L. E. Campusano
We report significant associated clustering in the field of a z=1.226 quasar from the Clowes-Campusano LQG in the form of both a factor ~11 overdensity of I-K>3.75 galaxies and red…
Astrometric demands of fibre-input spectrographs for wide-field quasar redshift surveys
Peter R Newman
A potential problem with using wide-field multi-object spectrographs for quasar redshift surveys is the introduction of position-dependent selection effects into the survey catalog…
The Cold and Hot Gas Content of Fine-Structure E and S0 Galaxies
A. E. Sansom, J. E. Hibbard, Francois Schweizer +1
We investigate trends of the cold and hot gas content of early-type galaxies with the presence of optical morphological peculiarities, as measured by the fine-structure index (Sigm…