The impact of human expert visual inspection on the discovery of strong gravitational lenses

Author:

Rojas Karina1ORCID,Collett Thomas E1ORCID,Ballard Daniel1,Magee Mark R1,Birrer Simon234,Buckley-Geer Elizabeth56ORCID,Chan James H H78ORCID,Clément Benjamin9,Diego José M10ORCID,Gentile Fabrizio1112ORCID,González Jimena13,Joseph Rémy14ORCID,Mastache Jorge1516,Schuldt Stefan1718,Tortora Crescenzo19ORCID,Verdugo Tomás20,Verma Aprajita21,Daylan Tansu22,Millon Martin9,Jackson Neal23,Dye Simon24ORCID,Melo Alejandra17ORCID,Mahler Guillaume2526ORCID,Ogando Ricardo L C27ORCID,Courbin Frédéric9ORCID,Fritz Alexander28,Herle Aniruddh1729,Acevedo Barroso Javier A9,Cañameras Raoul17,Cornen Claude30ORCID,Dhanasingham Birendra31ORCID,Glazebrook Karl32,Martinez Michael N13,Ryczanowski Dan33ORCID,Savary Elodie9,Góis-Silva Filipe27ORCID,Arturo Ureña-López L34,Wiesner Matthew P35,Wilde Joshua36ORCID,Valim Calçada Gabriel27,Cabanac Rémi37,Pan Yue6ORCID,Sierra Isaac6,Despali Giulia38ORCID,Cavalcante-Gomes Micaele V2739,Macmillan Christine29,Maresca Jacob24ORCID,Grudskaia Aleksandra17,O’Donnell Jackson H4041,Paic Eric9,Niemiec Anna2526ORCID,de la Bella Lucia F1,Bromley Jane41ORCID,Williams Devon M42ORCID,More Anupreeta4344ORCID,Levine. Benjamin C4

Affiliation:

1. Institute of Cosmology and Gravitation, University of Portsmouth , Burnaby Rd, Portsmouth PO1 3FX, UK

2. Kavli Institute for Particle Astrophysics and Cosmology and Department of Physics, Stanford University , Stanford, CA 94305, USA

3. SLAC National Accelerator Laboratory , Menlo Park, CA 94025, USA

4. Department of Physics and Astronomy, Stony Brook University , Stony Brook, NY 11794, USA

5. Fermi National Accelerator Laboratory , P.O. Box 500, Batavia, IL 60510, USA

6. Department of Astronomy and Astrophysics, University of Chicago , Chicago, IL 60637, USA

7. Department of Physics and Astronomy, Lehman College of the CUNY , Bronx, NY 10468, USA

8. Department of Astrophysics, American Museum of Natural History , Central Park West and 79th Street, NY 10024, USA

9. Institute of Physics, Laboratory of Astrophysics , Ecole Polytechnique Fédérale de Lausanne (EPFL), Observatoire de Sauverny, CH-1290 Versoix, Switzerland

10. Instituto de Física de Cantabria (CSIC-UC), Avda Los Castros s/n, E-39095 Santander, Spain

11. University of Bologna, Department of Physics and Astronomy (DIFA) , Via Gobetti 93/2, I-40129, Bologna, Italy

12. INAF – Osservatorio di Astrofisica e Scienza dello Spazio , via Gobetti 93/3, I-40129 Bologna, Italy

13. Physics Department, University of Wisconsin-Madison , Madison, WI 53706, USA

14. Oskar Klein Centre for Cosmoparticle Physics, Department of Physics, Stockholm University , Stockholm SE-106 91, Sweden

15. Consejo Nacional de Ciencia y Tecnología , Av. Insurgentes Sur 1582, Col. Crédito Constructor, Alc. Benito Juárez, CP 03940, México

16. Mesoamerican Centre for Theoretical Physics , Universidad Autónoma de Chiapas, Carretera Zapata Km. 4, Real del Bosque, Tuxtla Gutiérrez, Chiapas 29040, México

17. Max-Planck-Institut für Astrophysik , Karl-Schwarzschild Str 1, D-85748 Garching, Germany

18. Technische Universität München, Physik Department , James-Franck Str 1, D-85748 Garching, Germany

19. INAF – Osservatorio Astronomico di Capodimonte , Salita Moiariello 16, I-80131 Napoli, Italy

20. Instituto de Astronomía, Observatorio Astronómico Nacional, Universidad Nacional Autónoma de México , Apartado postal 106, C.P. 22800, Ensenada, B.C., México

21. Sub-department of Astrophysics, Denys Wilkinson Building, University of Oxford , Keble Road, Oxford OX1 3RH, UK

22. Department of Astrophysical Sciences , Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA

23. Department of Physics and Astronomy, School of Natural Sciences, University of Manchester , Oxford Rd, Manchester M13 9PL, UK

24. School of Physics & Astronomy, University of Nottingham, University Park , Nottingham NG7 2RD, UK

25. Centre for Extragalactic Astronomy, Department of Physics, Durham University , Durham DH1 3LE, UK

26. Institute for Computational Cosmology, Durham University , South Road, Durham DH1 3LE, UK

27. Observatório Nacional , Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, Brazil

28. OmegaLambdaTec GmbH , Lichtenbergstraße 8, D-85748 Garching, Germany

29. Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München , Scheinerstr. 1, D-81679 München, Germany

30. Citizen Scientist, Zooniverse, Astrophysics Sub-department, University of Oxford , Keble Road, Oxford OX1 3NP, UK

31. Department of Physics and Astronomy, University of New Mexico , 210 Yale Blvd NE, Albuquerque, NM 87106, USA

32. Centre for Astrophysics and Supercomputing, Swinburne University of Technology , PO Box 218, Hawthorn, VIC 3122, Australia

33. School of Physics and Astronomy, University of Birmingham , Edgbaston, Birmingham B15 2TT, UK

34. Departamento de Física, DCI, Campus León, Universidad de Guanajuato , León, Guanajuato 37150, México

35. Department of Physics, Benedictine University , 5700 College Road, Lisle, IL 60532, USA

36. School of Physical Sciences, The Open University , Walton Hall, Milton Keynes MK7 6AA, UK

37. IRAP, Università de Toulouse , UPS, CNRS, Toulouse, 31400, France

38. Institut für Theoretische Astrophysik, Zentrum für Astronomie, Heidelberg Universität , Albert-Ueberle-Str 2, D-69120 Heidelberg, Germany

39. Instituto Sciety Lab , São José dos Campos, SP,12210-90, Brazil

40. Department of Physics, University of California , 1156 High Str, Santa Cruz, CA 95064, USA

41. School of Computing & Communications, The Open University , Walton Hall, Milton Keynes MK7 6AA, UK

42. Santa Cruz Institute of Particle Physics, University of California , 1156 High Str, Santa Cruz, CA 95064 USA

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

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

Abstract

ABSTRACT We investigate the ability of human ‘expert’ classifiers to identify strong gravitational lens candidates in Dark Energy Survey like imaging. We recruited a total of 55 people that completed more than 25 per cent of the project. During the classification task, we present to the participants 1489 images. The sample contains a variety of data including lens simulations, real lenses, non-lens examples, and unlabelled data. We find that experts are extremely good at finding bright, well-resolved Einstein rings, while arcs with g-band signal to noise less than ∼25 or Einstein radii less than ∼1.2 times the seeing are rarely recovered. Very few non-lenses are scored highly. There is substantial variation in the performance of individual classifiers, but they do not appear to depend on the classifier’s experience, confidence or academic position. These variations can be mitigated with a team of 6 or more independent classifiers. Our results give confidence that humans are a reliable pruning step for lens candidates, providing pure and quantifiably complete samples for follow-up studies.

Funder

STFC

Swiss National Science Foundation

European Research Council

Max Planck Society

Deutsche Forschungsgemeinschaft

John Templeton Foundation

NASA

CONACYT

Science and Technology Facilities Council

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Anisotropic strong lensing as a probe of dark matter self-interactions;Monthly Notices of the Royal Astronomical Society;2023-10-12

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