Euclid Quick Data Release (Q1). The Strong Lensing Discovery Engine F -- Bright and low-redshift strong lenses
Year: 2026
Type: preprint
Abstract: We present 72 additional galaxy-galaxy strong lenses that complement the sample discovered in the Euclid Quick Release 1 data (63.1 deg^2) of the Strong Lens Discovery Engine (SLDE) papers A-E. It is shown that previous pre-selection of potential lenses, which excluded objects from the Gaia catalogue, led to missing several bright and low-redshift strong lenses, adding more than 10% new strong lens candidates compared to the previous search. In total, the catalogue includes 38 "grade A" (confident) and 34 "grade B" (probable) candidates. These lenses are identified through a combination of two independent searches for bright nearby objects: one based on machine-learning models followed by expert visual inspection, and the other based solely on expert visual inspection, targeting objects not included in the initial machine-learning selection (a limitation identified only after extensive visual inspection). With these additional strong lens candidates, we augment the expected number of high-confidence candidates in the Euclid Wide Survey from previous forecasts to 120000. Detailed semi-automated lens modelling confirms at least 41 systems out of 72, a fraction consistent with that found in SLDE A (315 out of 488). These include: multiple edge-on disc lenses; sources with arcs near the lens centre; "red sources"; and an edge-on disk galaxy lensing a galaxy merger, producing two sets of lensed features, an Einstein ring and a doubly imaged component. The median redshift of these systems is $Δ$ z ~ 0.3 lower than that of the SLDE A sample.
Source: arXiv (Cornell University)
Authors: Euclid Collaboration, Ecker, L. R., Fabricius, M., Seitz, S., Saglia, R., Lines, N. E. P., Holloway, P., Li, T., Verma, A., Balzer, F., Jin, Q., Manjón-García, A., Vincken, S. H., Wilde, J., Barroso, J. A. Acevedo, Nightingale, J. W., Rojas, K., Schuldt, S., Walmsley, M., Collett, T. E., Despali, G., Sonnenfeld, A., Tortora, C., Metcalf, R. B., Bender, R., Saulder, C., Baeten, E., Cornen, C., Delley, D., Finner, K., Galan, A., Gavazzi, R., Johnson, L. C., Leuzzi, L., Macmillan, C., Marshall, P. J., Millon, M., More, A., Moustakas, L. A., Pearson, J., Pippert, J. -N., Scarlata, C., Sluse, D., Spiniello, C., Thai, T. T., Ulivi, L., Wang, Han., Xu, X., Courbin, F., Meneghetti, M., Aghanim, N., Altieri, B., Andreon, S., Auricchio, N., Baccigalupi, C., Baldi, M., Balestra, A., Bardelli, S., Battaglia, P., Biviano, A., Branchini, E., Brescia, M., Camera, S., Cañas-Herrera, G., Capobianco, V., Carbone, C., Carretero, J., Casas, S., Castellano, M., Castignani, G., Cavuoti, S., Chambers, K. C., Cimatti, A., Colodro-Conde, C., Congedo, G., Conselice, C. J., Conversi, L., Copin, Y., Costille, A., Courtois, H. M., Cropper, M., Da Silva, A., Degaudenzi, H., De Lucia, G., Dolding, C., Dole, H., Dubath, F., Dupac, X., Dusini, S., Ealet, A., Escoffier, S., Farina, M., Farinelli, R., Faustini, F., Ferriol, S., Finelli, F., Fosalba, P., Fotopoulou, S., Frailis, M., Franceschi, E., Fumana, M., Galeotta, S., George, K., Gillard, W., Gillis, B., Giocoli, C., Gómez-Alvarez, P., Gracia-Carpio, J., Grazian, A., Grupp, F., Guzzo, L., Haugan, S. V. H., Hoekstra, H., Holmes, W., Hormuth, F., Hornstrup, A., Jahnke, K., Jhabvala, M., Joachimi, B., Keihänen, E., Kermiche, S., Kiessling, A., Kubik, B., Kümmel, M., Kunz, M., Kurki-Suonio, H., Brun, A. M. C. Le, Mignant, D. Le, Ligori, S., Lilje, P. B., Lindholm, V., Lloro, I., Mainetti, G., Maino, D., Maiorano, E., Mansutti, O., Marcin, S., Marggraf, O., Martinelli, M., Martinet, N., Marulli, F., Massey, R. J., Medinaceli, E., Mei, S., Mellier, Y., Merlin, E., Meylan, G., Mora, A., Moresco, M., Moscardini, L., Nakajima, R., Neissner, C., Nichol, R. C., Niemi, S. -M., Padilla, C., Paltani, S., Pasian, F., Pedersen, K., Percival, W. J., Pettorino, V., Pires, S., Polenta, G., Poncet, M., Pozzetti, L., Raison, F., Renzi, A., Rhodes, J., Riccio, G., Rix, H. -W., Romelli, E., Roncarelli, M., Rossetti, E., Sakr, Z., Sánchez, A. G., Sapone, D., Sartoris, B., Schneider, P., Schrabback, T., Secroun, A., Seidel, G., Serrano, S., Simon, P., Sirignano, C., Sirri, G., Stanco, L., Steinwagner, J., Tallada-Crespí, P., Taylor, A. N., Teplitz, H. I., Tereno, I., Tessore, N., Toft, S., Toledo-Moreo, R., Torradeflot, F., Tutusaus, I., Valenziano, L., Valiviita, J., Vassallo, T., Wang, Y., Weller, J., Zacchei, A., Zamorani, G., Zerbi, F. M., Zucca, E., Ballardini, M., Bolzonella, M., Bozzo, E., Burigana, C., Cabanac, R., Cappi, A., Castro, T., Clément, B., Vigo, J. A. Escartin, Gabarra, L., García-Bellido, J., Gautard, V., Hemmati, S., Huertas-Company, M., Macias-Perez, J., Maoli, R., Martín-Fleitas, J., Maturi, M., Mauri, N., Monaco, P., Pezzotta, A., Pöntinen, M., Porciani, C., Risso, I., Scottez, V., Sereno, M., Tenti, M., Tucci, M., Viel, M., Wiesmann, M., Akrami, Y., Andika, I. T., Angora, G., Anselmi, S., Archidiacono, M., Atrio-Barandela, F., Bazzanini, L., Bergamini, P., Bertacca, D., Bethermin, M., Beutler, F., Blanchard, A., Blot, L., Bonici, M., Borgani, S., Brown, M. L., Bruton, S., Calabro, A., Quevedo, B. Camacho, Caro, F., Carvalho, C. S., Charles, Y., Cogato, F., Conseil, S., Cooray, A. R., Cucciati, O., Davini, S., De Paolis, F., Desprez, G., Díaz-Sánchez, A., Di Domizio, S., Diego, J. M., Duc, P. -A., Duret, V., Elkhashab, M. Y., Enia, A., Fang, Y., Finoguenov, A., Fontana, A., Franco, A., Ganga, K., Gasparetto, T., Gaztanaga, E., Giacomini, F., Gianotti, F., Gozaliasl, G., Gruppuso, A., Guidi, M., Gutierrez, C. M., Hall, A., Hildebrandt, H., Hjorth, J., Hunt, L. K., Kajava, J. J. E., Kang, Y., Kansal, V., Karagiannis, D., Kiiveri, K., Kim, J., Kirkpatrick, C. C., Kruk, S., Lattanzi, M., Legrand, L., Lepori, F., Leroy, G., Lesci, G. F., Lesgourgues, J., Liaudat, T. I., Loureiro, A., Magliocchetti, M., Mannucci, F., Martins, C. J. A. P., Maurin, L., Miluzio, M., Moretti, C., Morgante, G., Naidoo, K., Natoli, P., Navarro-Alsina, A., Nesseris, S., Paoletti, D., Passalacqua, F., Paterson, K., Patrizii, L., Pisani, A., Potter, D., Pratt, G. W., Quai, S., Radovich, M., Rodighiero, G., Roster, W., Sacquegna, S., Sahlén, M., Sanders, D. B., Sarpa, E., Schneider, A., Sciotti, D., Sellentin, E., Smith, L. C., Sorce, J. G., Tanidis, K., Tao, C., Tarsitano, F., Testera, G., Teyssier, R., Tosi, S., Troja, A., Venhola, A., Vergani, D., Vernardos, G., Verza, G., Vielzeuf, P., Vinciguerra, S., Walton, N. A., Wright, A. H.
Institutions: Max Planck Institute for Extraterrestrial Physics, Ludwig-Maximilians-Universität München, University of Portsmouth, University of Oxford, Universidad Politécnica de Cartagena, FHNW University of Applied Sciences and Arts Northwestern Switzerland, Institut de Ciències del Cosmos, Jet Propulsion Laboratory, École Polytechnique Fédérale de Lausanne, Newcastle University, University of Milan, National Institute for Astrophysics, University of Toronto, University of Manchester, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Osservatorio di Astrofisica e Scienza dello Spazio, University of Bologna, Shanghai Jiao Tong University, Astronomical Observatory of Capodimonte, California Institute of Technology, Infrared Processing and Analysis Center, Max Planck Institute for Astrophysics, Technical University of Munich, Centre National de la Recherche Scientifique, Aix-Marseille Université, Institut d'Astrophysique de Paris, Sorbonne Université, SLAC National Accelerator Laboratory, Kavli Institute for Particle Astrophysics and Cosmology, University of Geneva, Kavli Institute for the Physics and Mathematics of the Universe, Inter-University Centre for Astronomy and Astrophysics, The Open University, University of Minnesota, University of Liège, European Southern Observatory, National Astronomical Observatory of Japan, Arcetri Astrophysical Observatory, Centro de Astrobiología, University of Southern California, University of California, Irvine, Institució Catalana de Recerca i Estudis Avançats, Institute of Space Sciences, Université Paris-Saclay, Institut d'Astrophysique Spatiale, European Space Astronomy Centre, Brera Astronomical Observatory, Scuola Internazionale Superiore di Studi Avanzati, Trieste Astronomical Observatory, Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Institute for Fundamental Physics of the Universe, Osservatorio Astronomico di Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Genova, University of Genoa, University of Naples Federico II, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Osservatorio Astrofisico di Torino, University of Turin, Leiden University, Royal Observatory, Leiden Observatory, University of Edinburgh, Port d'Informació Científica, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR), Astronomical Observatory of Rome, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, University of Hawaiʻi at Mānoa, University of Hawaii System, Instituto de Astrofísica de Canarias, European Space Agency, European Space Research Institute, Lyon 1 Université, Institut National de Physique Nucléaire et de Physique des Particules, Institut de Physique des 2 Infinis de Lyon, University College London, University of Lisbon, Institute of Astrophysics and Space Sciences, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Centre de physique des particules de Marseille, Institute for Space Astrophysics and Planetology, Agenzia Spaziale Italiana, Institut d'Estudis Espacials de Catalunya, University of Bristol, Istituto Nazionale di Fisica Nucleare, Sezione di Milano, University of Oslo, Technical University of Denmark, Max Planck Institute for Astronomy, Goddard Space Flight Center, University of Helsinki, Helsinki Institute of Physics, Université Paris Sciences et Lettres, Observatoire de Paris, Laboratoire d'Étude de l'Univers et des Phénomènes Extrêmes, SKA Observatory, Centre de Calcul de l’Institut National de Physique Nucléaire et de Physique des Particules, University of Bonn, Istituto Nazionale di Fisica Nucleare, Sezione di Roma I, Durham University, Université Paris Cité, Centre Pierre Binétruy, University of California, Berkeley, Institute for High Energy Physics, University of Surrey, European Space Research and Technology Centre, University of Copenhagen, University of Waterloo, Perimeter Institute, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Astrophysique, Instrumentation et Modélisation, Centre National d'Études Spatiales, University of Padua, Saint Joseph University, Heidelberg University, Institut de Recherche en Astrophysique et Planétologie, University of Chile, Universität Innsbruck, University of Ferrara, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, Istituto di Radioastronomia di Bologna, Université Côte d'Azur, Lagrange Laboratory, Observatoire de la Côte d’Azur, Fondazione ICSC Centro Nazionale di Ricerca in High Performance Computing, Big Data e Quantum Computing, Consejo Superior de Investigaciones Científicas, Instituto de Física Teórica, CEA Paris-Saclay - Etablissement de Saclay, Institut de Recherche sur les Lois Fondamentales de l'Univers, Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères, Institut polytechnique de Grenoble, Sapienza University of Rome, University of Trieste, Université Catholique de Lille, JUNIA, Case Western Reserve University, Laboratoire Univers et Théories, Universidad de Salamanca, Observatoire astronomique de Strasbourg, Université de Strasbourg, University of Salento, Istituto Nazionale di Fisica Nucleare, Sezione di Lecce, University of Groningen, Instituto de Física de Cantabria, Aalto University, Universidad de La Laguna, Ruhr University Bochum, University of Turku, ARC Centre of Excellence for Dark Matter Particle Physics, Swinburne University of Technology, University of the Western Cape, University of Cambridge, University of Zurich, CEA Paris-Saclay, Stockholm University, Imperial College London, Universidade do Porto, Centro de Astrofísica da Universidade do Porto, Collurania Teramo Observatory, Uppsala University, Université de Lille, Centre de Recherche en Informatique, Signal et Automatique de Lille, Centrale Lille Institut, ETH Zurich, Institute for Particle Physics and Astrophysics, Princeton University, University of Oulu, American Museum of Natural History, Lehman College, The Abdus Salam International Centre for Theoretical Physics (ICTP), Flatiron Institute
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Strong
OpenAlex ID: W7147714876