Galaxy-scale lens search in the PEARLS NEP TDF and CEERS JWST fields

Giovanni Ferrami; Nathan J Adams; Lewi Westcott; Thomas Harvey; Rolf A Jansen; Jose M Diego; Vince Estrada-Carpenter; Rogier A Windhorst; Christopher J Conselice; Anton M Koekemoer; Jordan CJ D’Silva; Christopher Willmer; J Stuart B Wyithe; Michael J Rutkowski; Seth H Cohen; Brenda L Frye; Norman A Grogin

Journal article

Galaxy-scale lens search in the PEARLS NEP TDF and CEERS JWST fields

Giovanni Ferrami, Nathan J Adams, Lewi Westcott, Thomas Harvey, Rolf A Jansen, Jose M Diego, Vince Estrada-Carpenter, Rogier A Windhorst, Christopher J Conselice, Anton M Koekemoer, Jordan CJ D’Silva, Christopher Willmer, J Stuart B Wyithe, Michael J Rutkowski, Seth H Cohen, Brenda L Frye, Norman A Grogin

Monthly Notices of the Royal Astronomical Society | Oxford University Press (OUP) | Published : 2025

DOI: 10.1093/mnras/staf1991

Abstract

ABSTRACT We present four galaxy scale lenses discovered in two James Webb Space Telescope (JWST) blank-fields: the $\sim$54 arcmin$^2$ of the PEARLS North-Ecliptic-Pole Time-Domain Field (NEP TDF) and in the ${\sim}90$ arcmin$^2$ of CEERS. We perform the search by visual inspection of NIRCam photometric data, obtaining an initial list of 16 lens candidates. We down-select this list to five high-confidence lens candidates, based on lens modelling of the image configuration and photometric redshift measurements for both the source and the deflector. We compare our results to samples of lenses obtained in ground-based and space-based lens search..

View full abstract