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

Jaelani, A. T., More, A., Oguri, M., Sonnenfeld, A., Suyu, S. H., Rusu, C. E., et al. (2020). Survey of Gravitationally-lensed Objects in HSC Imaging (SuGOHI). - V. Group-to-cluster scale lens search from the HSC-SSP Survey. Monthly Notices of the Royal Astronomical Society, 495(1), 1291-1310. doi:10.1093/mnras/staa1062.

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Jaelani, Anton T., Author
More, Anupreeta, Author
Oguri, Masamune, Author
Sonnenfeld, Alessandro, Author
Suyu, Sherry H.1, Author              
Rusu, Cristian E., Author
Wong, Kenneth C., Author
Chan, James H. H., Author
Kayo, Issha, Author
Lee, Chien-Hsiu, Author
Chao, Dani C.-Y.1, Author              
Coupon, Jean, Author
Inoue, Kaiki T., Author
Futamase, Toshifumi, Author
Affiliations:
1Physical Cosmology, MPI for Astrophysics, Max Planck Society, ou_2205644              

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 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.

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 Dates: 2020-04-21
 Publication Status: Published online
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 Rev. Type: Peer
 Identifiers: DOI: 10.1093/mnras/staa1062
Other: LOCALID:3245049
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Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
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Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 495 (1) Sequence Number: - Start / End Page: 1291 - 1310 Identifier: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150