In OM10 lensing catalog, all lenses are modeled using Singular Isothermal Ellipsoid (SIE). I plan to replace one analytic lens by a similar (ellipticity, velocity dispersion, and total mass) "realistic" lens from a cosmological hydro-simulation (Illustris Simulation) to study the effects of substructures and core structures of the realistic lenses on strong lensed quasars.
OM10
Illustris-3
Orientation (degree)
12.65232
60.97263036
Axis Ratio (a/b)
1.22790025128
1.19442436
M200 (Msun/h) :
2.42607170862e+12
2.89635567e+12
Velocity Dispersion (km/s)
175.7924
176.3327890116
Lensed Images
OM10
Illustris-3
Critical Curves and Caustics
Critical Curves
Caustics
Convergences
rc = 0.1 arcsec = 0.45 kpc/h at redshift z = 0.56
Conclusions
The core structure of the Illustris lens decreases the cross section for multiple lensed images.
Massive Substructures may change the magnification of lensed images.
The positions of lensed images are not changed significantly.
Illustris-3 might be not good enough to improve OM10.
Future work
The lens halo is chosen from the snapshot at redshift 0, then moved to redshift 0.55. I need to download more snapshots to play with halos in different redshifts.
Using higher resolution data (Illustris-1) to make sure that the core structure is real, but not because of the mass resolution.
Extracting more halos from Illustris to study these effects statistically.
Introduction
In OM10 lensing catalog, all lenses are modeled using Singular Isothermal Ellipsoid (SIE). I plan to replace one analytic lens by a similar (ellipticity, velocity dispersion, and total mass) "realistic" lens from a cosmological hydro-simulation (Illustris Simulation) to study the effects of substructures and core structures of the realistic lenses on strong lensed quasars.
Lensed Images
Critical Curves and Caustics
Convergences
rc = 0.1 arcsec = 0.45 kpc/h at redshift z = 0.56
Conclusions
Future work
References