Corpus ID: 235265646

Head-to-Toe Measurement of El Gordo: Improved Analysis of the Galaxy Cluster ACT-CL J0102-4915 with New Wide-field Hubble Space Telescope Imaging Data

@inproceedings{Kim2021HeadtoToeMO,
  title={Head-to-Toe Measurement of El Gordo: Improved Analysis of the Galaxy Cluster ACT-CL J0102-4915 with New Wide-field Hubble Space Telescope Imaging Data},
  author={Jinhyub Kim and M. James Jee and John P. Hughes and Mijin Yoon and Kim HyeongHan and Felipe Menanteau and Crist{\'o}bal Sif{\'o}n and Luke Hovey and Prasiddha Arunachalam},
  year={2021}
}
We present an improved weak-lensing (WL) study of the high−z (z = 0.87) merging galaxy cluster ACT-CL J0102-4915 (“El Gordo”) based on new wide-field Hubble Space Telescope (HST) imaging data. The new imaging data cover the ∼3.5 × ∼3.5 Mpc region centered on the cluster and enable us to detect WL signals beyond the virial radius, which was not possible in previous studies. We confirm the binary mass structure consisting of the northwestern (NW) and southeastern (SE) subclusters and the ∼2… Expand

References

2007b) in the main text. For fair comparison, here we show the two mass reconstructions side-by-side
  • 2007