# Strong Lens Models for 37 Clusters of Galaxies from the SDSS Giant Arcs Survey

## TL;DR

This paper develops strong gravitational lens models for 37 galaxy clusters using multi-instrument data, identifying and confirming background sources to understand cluster mass distributions.

## Contribution

It provides detailed strong lensing models for a large sample of galaxy clusters, incorporating new spectroscopic and photometric data to improve mass reconstructions.

## Key findings

- Identification of multiple lensed background sources
- Spectroscopic confirmation of source redshifts
- Enhanced mass models for galaxy clusters

## Abstract

We present strong gravitational lensing models for 37 galaxy clusters from the SDSS Giant Arcs Survey. We combine data from multi-band Hubble Space Telescope WFC3imaging, with ground-based imaging and spectroscopy from Magellan, Gemini, APO, and MMT, in order to detect and spectroscopically confirm new multiply-lensed background sources behind the clusters. We report spectroscopic or photometric redshifts of sources in these fields, including cluster galaxies and background sources. Based on all available lensing evidence, we construct and present strong lensing mass models for these galaxy clusters.