Resolving on 100 pc scales the UV-continuum in Lyman-alpha emitters between redshift 2 and 3 with gravitational lensing
- Ritondale, E.
- Auger, M. W.
- Vegetti, S.
- McKean, J. P.
DOIAbstract
We present a study of 17 LAEs at redshift 2 <z <3 gravitationally lensed by massive early-type galaxies (ETGs) at a mean redshift of approximately 0.5. Using a fully Bayesian grid-based technique, we model the gravitational lens mass distributions with elliptical power-law profiles and reconstruct the ultraviolet (UV)-continuum surface-brightness distributions of the background sources using pixellated source models. We find that the deflectors are close to, but not consistent with isothermal models in almost all cases, at the 2 sigma level. We take advantage of the lensing magnification (typically mu similar or equal to 20) to characterize the physical and morphological properties of these LAE galaxies. From reconstructing the ultraviolet ...
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