Andrew J. Barber

activity

19982004

most citedMeasuring the three-dimensional shear from simulation data, with applications to weak gravitational lensing

43 citations · 227 across the 12 of their papers we have counts for

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Showing 2001Show all

2 papers · 1 filter

astro-ph2001

The Effects of Weak Gravitational Lensing on Determinations of the Cosmology from Type Ia Supernovæ

Andrew J. Barber

Underlying cosmologies with deceleration parameter, $q_{0} = - 0.5 1_{- 0.24}^{+ 0.03},$ may be interpreted as having $q_{0} = - 0.55,$ on the basis of weak gravitational lensing effects.

astro-ph2001★ 16 cited

The redshift and scale dependence of the cosmic shear signal from numerical simulations

Andrew J. Barber

The weak lensing shear signal has been measured numerically in $N$ -body simulations at 14 different redshifts ( $z_{s} = 0.1$ to 3.6) and on angular scales of $θ = 2^{'}$ to 32'. In addit…