Euclid Quick Data Release (Q1). The strong-lensing discovery engine d: Double-source-plane lens candidates

Strong gravitational-lensing systems with multiple source planes are powerful tools for probing the density profiles and dark matter substructure of galaxies. The ratio of the Einstein radii is related to the dark energy equation of state through the cosmological scaling factor β. Galaxy-scale double-source-plane lenses (DSPLs) are extremely rare, however. We report the discovery of four new galaxy-scale DSPL candidates in the Euclid Quick Release 1 (Q1) data. These systems were initially identified through a combination of machine-learning lens-finding models and subsequent visual inspection from citizens and experts. We applied the widel -used LensPop lens-forecasting model to predict that the full Euclid survey will discover 1700 DSPLs. This scales to $6 ± 3$ DSPLs in 63 deg^2, which is the area of Q1. The number of discoveries in this work is broadly consistent with this forecast. We present lens models for each DSPL and infer their β values. Our initial Q1 sample demonstrates that Euclid promises to discover these rare objects.

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Publication Details

Journal
Astronomy and Astrophysics
Published
2025-06-27
DOI
https://doi.org/10.1051/0004-6361/202554543
Citations
1
Primary Topic
Astronomy and Astrophysical Research
Type
article
Field-Weighted Citation Impact
1.19

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Euclid Quick Data Release (Q1). The strong-lensing discovery engine d: Double-source-plane lens candidates

Dominique Sluse, F Passalacqua, J. Hjorth, Will J. Percival et al.
1 citations
Astronomy and Astrophysics
Astronomy and Astrophysical Research
1.19
article

Euclid Quick Data Release (Q1). The strong-lensing discovery engine d: Double-source-plane lens candidates

Dominique Sluse, F Passalacqua, J. Hjorth, Will J. Percival, P. Tallada-Crespí, S Sacquegna, S Matthew, A. Pisani, N. Auricchio, D. Le Mignant, M. Brescia, I Tereno, A. Secroun, I. Hook, J. García-Bellido, A. Blanchard, N. Martinet, W.G Hartley, E. Gaztanaga, R Nakajima, M. Baldi, D. B. Sanders, D. Scott, A.G Ferrari, H Hildebrandt, A. Navarro-Alsina, Francesca Lepori, Guillaume Mahler, W Gillard, Leonidas A. Moustakas, A. Franco, S. Schuldt, F. Courbin, M. Migliaccio, F. Torradeflot, I. Lloro, Y. Copin, Pietro Battaglia, Alex D. Hall, P. Schneider, A. Troja, Michael D. Brown, F. Grupp, A. Biviano, M. Fabricius, Elena Sellentin, A. Díaz‐Sánchez, J.J Diaz, Y. Copin, M Radovich, G. Desprez, Mathilde Jauzac, L Patrizii, F Faustini, Daniele Bertacca, M. Magliocchetti, S. Nadathur, A.R. Cooray, F. Marulli, V. Scottez, T. Schrabback, L. Gabarra, M Miluzio, C. J. A. P. Martins, J Le Graet, Pierre–Alain Duc, E. Zucca, S. V. H. Haugan, S. Paltani, T. Vassallo, A Enia, C.J. Conselice, Andréia Cristina de Melo, C. Neissner, G. Castignani, M. Cropper, Valérie Gautard, R. Toledo-Moreo, S Bruton, M. Moresco, A. Cimatti, B. R. Granett, Y Fang, D. Sapone, A. Da Silva, J.W Nightingale, M. Poncet, G. Sirri, J. Carretero, T.I Liaudat, S Toft, K. Ganga, N Tessore, M Ballardini, B Gillis, C. Burigana, A. M. Di Giorgio, S Quai, V Capobianco, G. Morgante, I Risso, L. Moscardini, V. Allevato, J. Väliviita, C Sirignano, B Sartoris, S. Escoffier, J.A. Acevedo Barroso, J Brinchmann, L Blot, A Manjón-García, Maria Lembo, D. Vergani, E. Medinaceli, M Sahlén, F. De Paolis, R. Maoli, H. Degaudenzi, E. Maiorano, R. B. Metcalf, A. Hornstrup, O. Marggraf, V.F Cardone, Sergey Kruk, M. Pöntinen, S. Di Domizio, M Viel, S. Marcin, A. Cappi, R. Teyssier, F. M. Zerbi, L. Stanco, M. Béthermin, N. Martinet, A. Balestra, F. Bernardeau, R. Saglia, K. Jahnkę, V. Pettorino, E. Branchini, M. Farina, F. Mannucci, M Jhabvala, S. Galeotta, F. Pasian, A. Venhola, V. Kansal, S Anselmi, G. Vernardos, F. Hormuth, J. Weller, G. Seidel, David Ballard, R. Farinelli, F. Giacomini, C. Valieri, A. Zacchei, K. Pedersen, E. Franceschi, E. A. Valentijn, J.A Schewtschenko, A. Kiessling, J Martín-Fleitas, P. Gómez-Álvarez, K. Kiiveri, T Castro, Coleman Krawczyk, Q. Le Boulc'h, M. Sereno, Pardis Simon, N. A. Walton, J. Wilde, Thomas E. Collett, Pierluigi Monaco, C. Giocoli, G Cañas-Herrera, J. Gracia-Carpio, Antonio M. Mora, I.T Andika, Savvas Nesseris, S. Maurogordato, S. Camera, D. Potter, A. Cappi, K Tanidis, L. Legrand, LAURENCE C. SMITH, G.F Lesci, A. Grazian, K. C. Chambers, E. Merlin, F. Finelli⋆, T Gasparetto, V. Lindholm, F. Raison, R. Rébolo, P.-F Rocci, S. Casas, A Fontana, E. Keihänen, P Vielzeuf, Koshy George, P. Hudelot, J. Schaye, G. Gozaliasl, E. Romelli, M. Bolzonella, A. Spurio Mancini, P. Bergamini, R Massey, Z. Sakr, A. Renzi, R. Gavazzi, C. Carbone, G. Despali, B. Altieri, K. Paterson, S. Kermiche, J. Steinwagner, J. Rhodes, G. Meylan, S. Davini, F Caro, E Sarpa, J. M. Diego, O. Mansutti, Claudia Scarlata, F Dubath, R. Cabanac, P. B. Lilje, A. Amara, E. Bozzo, P. Bergamini, Paul H. Holloway, M. Schirmer, S. Serrano, A Veropalumbo, L.A. Popa, A Pezzotta, M. Kunz, A.M.C Le Brun, Aurel Schneider, M. Frailis, O. Cucciati, A. Verma, S. Ligori, W.J.R. Enzi, M. G. Castellano, C. S. Carvalho, S Cavuoti, L. Pozzetti, C. Padilla, Y. Akrami, F. Atrio‐Barandela, Claudio Moretti, H. M. Courtois, R. C. Nichol, F. Cogato, R Pearce-Casey, D Sciotti, N.E.P. Lines, Tian Li, Yun Wang, Pedro G. Ferreira, L. Maurin, G. Riccio, C. M. Gutiérrez, J.E. Kajava, D Karagiannis, K. Rojas, S Alvi, G de Lucia, M. D. Seiffert, M. Roncarelli, I. Tutusaus, B Joachimi, G Leroy, S.-M. Niemi, C. Porciani, K. Benson, N. Aghanim, N Mauri, C. Hernández-Monteagudo, K. Kiiveri, M. Archidiacono, Y. Mellier, X. Dupac, J. Macias-Perez, S Bardelli, G Polenta, M. Kümmel, H. Kurki‐Suonio, M. Tucci, M. Wiesmann, M. Tenti, A.N Taylor, G. Testera, B. Clément, K Naidoo, C. Baccigalupi, Y. Mellier, G. Maggio, J.A. Escartin Vigo, B. Kubik, G Mainetti, D. Di Ferdinando, S. Andreon, W. Holmes, Y. Ascasíbar, H. Hoekstra, S. Fotopoulou, G Verza, H. Dole, L Valenziano, A. Loureiro, F. Gianotti, S. Tosi, C. Dolding, M Guidi, S. Pires, C. A. J. Duncan, A Finoguenov, J. Lesgourgues, M. Walmsley, G. Congedo, L. Leuzzi, Y Kang
article en
1 citations

Abstract

Strong gravitational-lensing systems with multiple source planes are powerful tools for probing the density profiles and dark matter substructure of galaxies. The ratio of the Einstein radii is related to the dark energy equation of state through the cosmological scaling factor β. Galaxy-scale double-source-plane lenses (DSPLs) are extremely rare, however. We report the discovery of four new galaxy-scale DSPL candidates in the Euclid Quick Release 1 (Q1) data. These systems were initially identified through a combination of machine-learning lens-finding models and subsequent visual inspection from citizens and experts. We applied the widel -used LensPop lens-forecasting model to predict that the full Euclid survey will discover 1700 DSPLs. This scales to $6 ± 3$ DSPLs in 63 deg^2, which is the area of Q1. The number of discoveries in this work is broadly consistent with this forecast. We present lens models for each DSPL and infer their β values. Our initial Q1 sample demonstrates that Euclid promises to discover these rare objects.

Astronomy and Astrophysics
Royal Society
Openalex Percentile: Top 20%
Astronomy and Astrophysical Research
1.19
DOIOpen Access PDFOpenAlex
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