Survey of Gravitationally-lensed Objects in HSC Imaging (SuGOHI): VI. Crowdsourced lens finding with Space Warps

Survey of Gravitationally-lensed Objects in HSC Imaging (SuGOHI): VI. Crowdsourced lens finding with Space Warps

Context. Strong lenses are extremely useful probes of the distribution of matter on galaxy and cluster scales at cosmological distances, however, they are rare and difficult to find. The number of currently known lenses is on the order of 1000. Aims. The aim of this study is to use crowdsourcing to...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Astronomy and astrophysics (Berlin) 2020-10, Vol.642, p.A148
Hauptverfasser: Sonnenfeld, Alessandro, Verma, Aprajita, More, Anupreeta, Baeten, Elisabeth, Macmillan, Christine, Wong, Kenneth C., Chan, James H. H., Jaelani, Anton T., Lee, Chien-Hsiu, Oguri, Masamune, Rusu, Cristian E., Veldthuis, Marten, Trouille, Laura, Marshall, Philip J., Hutchings, Roger, Allen, Campbell, O’ Donnell, James, Cornen, Claude, Davis, Christopher P., McMaster, Adam, Lintott, Chris, Miller, Grant
Format: Artikel
Sprache:eng
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Context. Strong lenses are extremely useful probes of the distribution of matter on galaxy and cluster scales at cosmological distances, however, they are rare and difficult to find. The number of currently known lenses is on the order of 1000. Aims. The aim of this study is to use crowdsourcing to carry out a lens search targeting massive galaxies selected from over 442 square degrees of photometric data from the Hyper Suprime-Cam (HSC) survey. Methods. Based on the S16A internal data release of the HSC survey, we chose a sample of ∼300 000 galaxies with photometric redshifts in the range of 0.2 
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361/202038067