Gravitational lensing effects on submillimetre galaxy counts

@article{Er2013GravitationalLE,
  title={Gravitational lensing effects on submillimetre galaxy counts},
  author={Xinzhong Er and Guoliang Li and Shude Mao and Liang Cao},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2013},
  volume={430},
  pages={1423-1432}
}
We study the effects on the number counts of submillimetre galaxies due to gravitational lensing. We explore the effects on the magnification cross-section due to halo density profiles, ellipticity and cosmological parameter (the power-spectrum normalization sigma(8)). We show that the ellipticity does not strongly affect the magnification cross-section in gravitational lensing while the halo radial profiles do. Since the baryonic cooling effect is stronger in galaxies than clusters, galactic… 
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References

SHOWING 1-10 OF 61 REFERENCES
Lensing magnification: implications for counts of submillimetre galaxies and SZ clusters
We study lensing magnification of source galaxies by intervening galaxy groups and clusters using a halo model. Haloes are modelled with truncated NFW profiles with ellipticity added to their lensing
Gravitational lensing of extended high-redshift sources by dark matter haloes
ABSTRA C T High-redshift galaxies and quasi-stellar objects (QSOs) are most likely to be strongly lensed by intervening haloes between the source and the observer. In addition, a large fraction of
Flux-limited strong gravitational lensing and dark energy
In the standard flat cosmological constant (A) cold dark matter (CDM) cosmology, a model of two populations of lens halos for strong gravitational lensing can reproduce the results of the
Strong lensing optical depths in a ΛCDM universe
We investigate how strong gravitational lensing in the concordanceCDM cosmology is affected by the stellar mass in galaxies. We extend our previous studies, based on ray trac- ing through the
Semianalytical Models for Lensing by Dark Halos. I. Splitting Angles
We use the semianalytical approach to analyze gravitational lensing of remote quasars by foreground dark halos in various cold dark matter (CDM) cosmologies in order to determine the sensitivity of
Gravitational Lensing by NFW Halos
We investigate the gravitational lensing properties of dark matter halos with Navarro, Frenk & White (NFW) density profiles and derive an analytic expression for the radial dependence of the shear,
EFFECTS OF STRONG GRAVITATIONAL LENSING ON MILLIMETER-WAVE GALAXY NUMBER COUNTS
We study the effects of strong lensing on the observed number counts of millimeter sources using a ray-tracing simulation and two number count models of unlensed sources. We employ a quantitative
Global Probes of the Impact of Baryons on Dark Matter Halos
The halo mass function, dn/dM, predicted by hierarchical clustering models can be measured indirectly using dynamical probes like the distribution of gravitational lens image separations, dn/dΔθ, or
EFFECTIVE MODELS FOR STATISTICAL STUDIES OF GALAXY-SCALE GRAVITATIONAL LENSING
We have worked out simple analytical formulae that accurately approximate the relationship between the position of the source with respect to the lens center and the amplification of the images,
Effects of Ellipticity and Shear on Gravitational Lens Statistics
We study the effects of ellipticity in lens galaxies and external tidal shear from neighboring objects on the statistics of strong gravitational lenses. For isothermal lens galaxies normalized so
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