WFPC2 MDS
HST Gravitational Lens Simulation

Simulated Lens image To
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Observed Lens image

Impact parameter 0.10 arc-seconds
Area within Caustic 0.096 arc-seconds2
Area within Cut outside Caustic 1.081 arc-seconds2
Total magnification of Lensed source 2.37 mag

On Caustic Image the Lens/Source half-light ellipse are drawn in Red/Blue.
Caustic/Cut images are drawn in Purple/Green.
To change source position click on Caustic ImageMap at the required location.

To modify the model: Retype parameters below and click to
Critical radiusarc-seconds
Lens Mass axis ratio 
Parameter/Objectunit The Lens. Central
Elliptical galaxy
The Source QSO or
galaxy being lensed
I Magnitudemag.
Half-light radiusarc-seconds
Axis ratio 
Orientationdegrees
Light Profileindex
(V-I) colormag.
(B-V) colormag.
X offsetarc-seconds
Y offsetarc-seconds
Gravitational Lens Potential
Profile Softening(alpha)N/I
Core/Critical Radius ratio(beta)
Cosmic Shear(gamma)
Cosmic Shear Directiondegrees
Mass wrt light orientation degrees
velocity dispersionkm/s
Red Shiftkm/s/Mpc
comoving distance Dol,DosMpc 2776.86 6759.16
comoving distance DlsMpc 3982.31

Options
Observation PSF convolve Bleed CCD charge Photon Noise
Lens Potential Model KSB - SIE WMS - SSS NFW - CDM
Compute Critical Radius Velocity Dispersion

Cosmological Constants.
Hubble Constant Omega_matter Omega_lambda

HST WFPC2 Observation
Exposure/Filterunit I F814W (Red) V F606W (Green) B F450W (Blue)
Total Exposure timeSeconds
Number of Exposures 
Mean Sky BackgroundDN
HST image URL.jpg


N/I   Not Implimented yet: Softening of profile (non-isothermal) for KSB models
N/A Not Applicable for Lens Potential Model selected
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