English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  HOLISMOKES - VI. New galaxy-scale strong lens candidates from the HSC-SSP imaging survey

Canameras, R., Schuldt, S., Shu, Y., Suyu, S. H., Taubenberger, S., Meinhardt, T., et al. (2021). HOLISMOKES - VI. New galaxy-scale strong lens candidates from the HSC-SSP imaging survey. Astronomy and Astrophysics, 653: L6. doi:10.1051/0004-6361/202141758.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
HOLISMOKES - VI. New galaxy-scale strong lens candidates from the HSC-SSP imaging survey.pdf (Any fulltext), 11MB
 
File Permalink:
-
Name:
HOLISMOKES - VI. New galaxy-scale strong lens candidates from the HSC-SSP imaging survey.pdf
Description:
-
OA-Status:
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Canameras, R.1, Author           
Schuldt, S.1, Author           
Shu, Y.2, Author           
Suyu, S. H.1, Author           
Taubenberger, S.3, Author           
Meinhardt, T., Author
Leal-Taixe, L., Author
Chao, D. C.-Y., Author
Inoue, K. T., Author
Jaelani, A. T., Author
More, A., Author
Affiliations:
1Physical Cosmology, MPI for Astrophysics, Max Planck Society, ou_2205644              
2MPI for Astrophysics, Max Planck Society, ou_159875              
3Stellar Astrophysics, MPI for Astrophysics, Max Planck Society, ou_159882              

Content

show
hide
Free keywords: -
 Abstract: We have carried out a systematic search for galaxy-scale strong lenses in multiband imaging from the Hyper Suprime-Cam (HSC) survey. Our automated pipeline, based on realistic strong-lens simulations, deep neural network classification, and visual inspection, is aimed at efficiently selecting systems with wide image separations (Einstein radii θE ∼ 1.0–3.0″), intermediate redshift lenses (z ∼ 0.4–0.7), and bright arcs for galaxy evolution and cosmology. We classified gri images of all 62.5 million galaxies in HSC Wide with i-band Kron radius ≥0.8″ to avoid strict preselections and to prepare for the upcoming era of deep, wide-scale imaging surveys with Euclid and Rubin Observatory. We obtained 206 newly-discovered candidates classified as definite or probable lenses with either spatially-resolved multiple images or extended, distorted arcs. In addition, we found 88 high-quality candidates that were assigned lower confidence in previous HSC searches, and we recovered 173 known systems in the literature. These results demonstrate that, aided by limited human input, deep learning pipelines with false positive rates as low as ≃0.01% can be very powerful tools for identifying the rare strong lenses from large catalogs, and can also largely extend the samples found by traditional algorithms. We provide a ranked list of candidates for future spectroscopic confirmation.

Details

show
hide
Language(s): eng - English
 Dates: 2021-09-17
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1051/0004-6361/202141758
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Astronomy and Astrophysics
  Other : Astron. Astrophys.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: France : EDP Sciences S A
Pages: - Volume / Issue: 653 Sequence Number: L6 Start / End Page: - Identifier: ISSN: 1432-0746
CoNE: https://pure.mpg.de/cone/journals/resource/954922828219_1