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arXiv · 1202.0539

Source Plane Reconstruction of The Bright Lensed Galaxy RCSGA 032727-132609

Keren Sharon·Michael D. Gladders·Jane R. Rigby·Eva Wuyts·Benjamin P. Koester·Matthew B. Bayliss·L. Felipe Barrientos
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Abstract

We present new HST/WFC3 imaging data of RCSGA 032727-132609, a bright lensed galaxy at z=1.7 that is magnified and stretched by the lensing cluster RCS2 032727-132623. Using this new high-resolution imaging, we modify our previous lens model (which was based on ground-based data) to fully understand the lensing geometry, and use it to reconstruct the lensed galaxy in the source plane. This giant arc represents a unique opportunity to peer into 100-pc scale structures in a high-redshift galaxy. This new source reconstruction will be crucial for a future analysis of the spatially-resolved rest-UV and rest-optical spectra of the brightest parts of the arc.

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Keren Sharon, Michael D. Gladders, Jane R. Rigby, Eva Wuyts, Benjamin P. Koester, Matthew B. Bayliss, L. Felipe Barrientos. 2012-02-02. Source Plane Reconstruction of The Bright Lensed Galaxy RCSGA 032727-132609. https://doi.org/10.1088/0004-637x/746/2/161

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