Skip to main content
eScholarship
Open Access Publications from the University of California

Discovering New Strong Gravitational Lenses in the DESI Legacy Imaging Surveys

  • Author(s): Huang, X
  • Storfer, C
  • Gu, A
  • Ravi, V
  • Pilon, A
  • Sheu, W
  • Venguswamy, R
  • Bankda, S
  • Dey, A
  • Landriau, M
  • Lang, D
  • Meisner, A
  • Moustakas, J
  • Myers, AD
  • Sajith, R
  • Schlafly, EF
  • Schlegel, DJ
  • et al.

Published Web Location

https://arxiv.org/pdf/2005.04730.pdf
No data is associated with this publication.
Abstract

We have conducted a search for new strong gravitational lensing systems in the Dark Energy Spectroscopic Instrument Legacy Imaging Surveys' Data Release 8. We use deep residual neural networks, building on previous work presented in Huang et al. (2020). These surveys together cover approximately one third of the sky visible from the northern hemisphere, reaching a z band AB magnitude of ~22.5. We compile a training sample that consists of known lensing systems as well as non-lenses in the Legacy Surveys and the Dark Energy Survey. After applying our trained neural networks to the survey data, we visually inspect and rank images with probabilities above a threshold. Here we present 1210 new strong lens candidates.

Item not freely available? Link broken?
Report a problem accessing this item