Survey of Gravitationally lensed Objects in HSC Imaging (SuGOHI) – V. Group-to-cluster scale lens search from the HSC

Survey of Gravitationally lensed Objects in HSC Imaging (SuGOHI) – V. Group-to-cluster scale lens search from the HSC–SSP Survey

Published:2020-04-21 Issue:1 Volume:495 Page:1291-1310
ISSN:0035-8711
Container-title:Monthly Notices of the Royal Astronomical Society
language:en
Short-container-title:

Author:

Jaelani Anton T¹²³^ORCID,More Anupreeta⁴⁵^ORCID,Oguri Masamune⁴⁶⁷,Sonnenfeld Alessandro⁴⁸^ORCID,Suyu Sherry H⁹¹⁰¹¹,Rusu Cristian E¹²^ORCID,Wong Kenneth C⁴^ORCID,Chan James H H¹³^ORCID,Kayo Issha¹⁴^ORCID,Lee Chien-Hsiu¹⁵^ORCID,Chao Dani C-Y⁹¹⁰,Coupon Jean¹⁶,Inoue Kaiki T¹,Futamase Toshifumi¹⁷

Affiliation:

1. Department of Physics, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan

2. Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai 980-8578, Japan

3. Astronomy Study Program and Bosscha Observatory, FMIPA, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia

4. Kavli Institute for the Physics and Mathematics of the Universe (IPMU), 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8583, Japan

5. The Inter-University Centre for Astronomy and Astrophysics (IUCAA), Post Bag 4, Ganeshkhind, Pune 411007, India

6. Department of Physics, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

7. Research centre for the Early Universe (RESCEU), The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

8. Leiden Observatory, Leiden University, Niels Bohrweg 2, NL-2333 CA Leiden, the Netherlands

9. Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Straße 1, D-85748 Garching, Germany

10. Physik-Department, Technische Universität München, James-Franck-Straße 1, D-85748 Garching, Germany

11. Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), 11F of ASMAB, No. 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan

12. Subaru Telescope, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan

13. Laboratory of Astrophysique, École Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny, CH-1290 Versoix, Switzerland

14. Department of Liberal Arts, Tokyo University of Technology, 5-23-22 Nishikamata, Ota-ku, Tokyo 144-8650, Japan

15. National Optical Astronomy Observatory, 950 N Cherry Avenue, Tucson, AZ 85719, USA

16. Department of Astronomy, University of Geneva, ch. d’Écogia 16, CH-1290 Versoix, Switzerland

17. Department of Astrophysics and Atmospheric Sciences, Kyoto Sangyo University, Kyoto, Kyoto 603-8555, Japan

Abstract

ABSTRACT We report the largest sample of candidate strong gravitational lenses belonging to the Survey of Gravitationally lensed Objects in HSC Imaging for group-to-cluster scale (SuGOHI-c) systems. These candidates are compiled from the S18A data release of the Hyper Suprime-Cam Subaru Strategic Program (HSC–SSP) Survey. We visually inspect ∼39 500 galaxy clusters, selected from several catalogues, overlapping with the Wide, Deep, and UltraDeep fields, spanning the cluster redshift range of 0.05 < zcl < 1.38. We discover 641 candidate lens systems, of which 536 are new. From the full sample, 47 are almost certainly bona fide lenses, 181 of them are highly probable lenses, and 413 are possible lens systems. Additionally, we present 131 lens candidates at galaxy scale serendipitously discovered during the inspection. We obtained spectroscopic follow-up of 10 candidates using the X-shooter. With this follow-up, we confirm eight systems as strong gravitational lenses. Of the remaining two, one of the sources is too faint to detect any emission, and the other has a tentative redshift close to the lens redshift, but additional arcs in this system are yet to be observed spectroscopically. Since the HSC–SSP is an ongoing survey, we expect to find ∼600 definite or probable lenses using this procedure and even more if combined with other lens finding methods.

Funder

University of Hawai'i

Johns Hopkins University

Durham University

University of Edinburgh

Space Telescope Science Institute

National Aeronautics and Space Administration

National Science Foundation

University of Maryland

Eötvös Loránd Tudományegyetem

Los Alamos National Laboratory

National Astronomical Observatory of Japan