Imperial College London
Alternate

ProfessorDanielMortlock

Faculty of Natural Sciences, Department of Physics

Professor of Astrophysics and Statistics
 
 
 
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Contact

 

+44 (0)20 7594 7878d.mortlock Website

 
 
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Location

 

1018ABlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Mortlock:2000:10.1046/j.1365-8711.2000.03892.x,
author = {Mortlock, DJ and Webster, RL},
doi = {10.1046/j.1365-8711.2000.03892.x},
journal = {Monthly Notices of the Royal Astronomical Society},
pages = {872--878},
title = {The statistics of wide-separation lensed quasars},
url = {http://dx.doi.org/10.1046/j.1365-8711.2000.03892.x},
volume = {319},
year = {2000}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The absence of any wide-separation gravitational lenses in the Large Bright Quasar Survey is used to place limits on the population of cluster-sized haloes in the universe, and hence constrain a number of cosmological parameters. The results agree with previous investigations in strongly ruling out the standard cold dark matter model but they are consistent with low-density universes in which the primordial fluctuation spectrum matches both cluster abundances and cosmic microwave background measurements. These conclusions are essentially independent of the cosmological constant, which is in stark contrast to the statistics of galaxy lenses. The constraints presented here are nullified if clusters have core radii of 10 kpc, but are free of a number of potential systematic errors, owing to the homogeneity of the data.
AU  - Mortlock,DJ
AU  - Webster,RL
DO  - 10.1046/j.1365-8711.2000.03892.x
EP  - 878
PY  - 2000///
SN  - 0035-8711
SP  - 872
TI  - The statistics of wide-separation lensed quasars
T2  - Monthly Notices of the Royal Astronomical Society
UR  - http://dx.doi.org/10.1046/j.1365-8711.2000.03892.x
UR  - http://arxiv.org/abs/astro-ph/0008081v1
UR  - http://hdl.handle.net/10044/1/62155
VL  - 319
ER  -
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