SOURCE-PLANE RECONSTRUCTION OF THE BRIGHT LENSED GALAXY RCSGA 032727-132609

We present new Hubble Space Telescope/Wide Field Camera 3 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 gr...

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Bibliographic Details
Published in:The Astrophysical journal 2012-02, Vol.746 (2), p.1-10
Main Authors: Sharon, Keren, Gladders, Michael D, Rigby, Jane R, Wuyts, Eva, Koester, Benjamin P, Bayliss, Matthew B, Barrientos, L Felipe
Format: Article
Language:English
Subjects:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
CAMERAS
Clusters
Field cameras
GALAXIES
GALAXY CLUSTERS
Hubble Space Telescope
Imaging
Lenses
Planes
Reconstruction
RED SHIFT
Spectra
TELESCOPES
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Summary:We present new Hubble Space Telescope/Wide Field Camera 3 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.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/746/2/161