Euclid 快速数据释放 (Q1)。AstroVink：基于视觉转换器寻找强引力透镜系统的方法
天体物理仪器与方法
2026-04-27 v1 星系天体物理
摘要
我们提出 AstroVink，这是一个用于在 Euclid 成像中自动识别强透镜候选对象的视觉转换器分类器。我们基于 DINOv2 编码器进行微调，以区分透镜天体与非透镜天体。我们的基础模型在模拟的强透镜系统和标记的非透镜天体上训练，测试集中可在前 500 名的候选对象中恢复 88 个透镜候选对象，对应每检查 5.7 个对象即可发现一个透镜。数据释放 Q1 后，我们使用高置信度的透镜候选对象和新的负例（即被其他分类器标记为潜在透镜但在肉眼检查中被拒绝的对象）进行 retraining。重新训练后的网络进一步提升了性能，在相同的排名中实现对全部 110 个系统的恢复，将检查效率提升到每检查 4.5 个对象即可发现一个透镜，显示了在真实数据中纳入实例的作用。对训练子集的分析表明，纳入真实负例的作用是这一改进的关键。最后，我们将重新训练好的模型应用到 Q1 原始的 108 万目标集合中，随后进行了新的 Space Warps 公民科学检查和专家审核，在此过程中我们发现了 8 个 Grade A 和 26 个 Grade B 的新透镜候选对象。这些结果表明，基于转换器的体系结构在真实的 Euclid 数据中能够以高效的精度恢复强透镜候选对象，大幅减少了需要肉眼检查的候选对象数量。
引用
@article{arxiv.2604.21977,
title = {Euclid Quick Data Release (Q1). AstroVink: A vision transformer approach to find strong gravitational lens systems},
author = {Euclid Collaboration and S. H. Vincken and K. Rojas and M. Melchior and N. E. P. Lines and T. E. Collett and A. Verma and P. Holloway and G. Despali and S. Schuldt and R. B. Metcalf and R. Gavazzi and F. Courbin and J. A. Acevedo Barroso and B. Clément and T. Li and D. Sluse and J. Wilde and A. Melo and A. Sonnenfeld and C. Tortora and T. T. Thai and M. Millon and C. Spiniello and A. Manjón-García and M. Meneghetti and B. C. Nagam and B. Altieri and S. Andreon and N. Auricchio and C. Baccigalupi and M. Baldi and A. Balestra and S. Bardelli and P. Battaglia and A. Biviano and E. Branchini and M. Brescia and S. Camera and V. Capobianco and C. Carbone and J. Carretero and S. Casas and M. Castellano and G. Castignani and S. Cavuoti and A. Cimatti and C. Colodro-Conde and G. Congedo and C. J. Conselice and L. Conversi and Y. Copin and A. Costille and H. M. Courtois and M. Cropper and A. Da Silva and H. Degaudenzi and G. De Lucia and C. Dolding and H. Dole and M. Douspis and F. Dubath and X. Dupac and S. Dusini and S. Escoffier and M. Farina and F. Faustini and S. Ferriol and F. Finelli and P. Fosalba and S. Fotopoulou and M. Frailis and E. Franceschi and M. Fumana and S. Galeotta and K. George and B. Gillis and C. Giocoli and J. Gracia-Carpio and A. Grazian and F. Grupp and L. Guzzo and S. V. H. Haugan and J. Hoar and W. Holmes and I. M. Hook and F. Hormuth and A. Hornstrup and K. Jahnke and M. Jhabvala and B. Joachimi and S. Kermiche and A. Kiessling and B. Kubik and M. Kümmel and M. Kunz and H. Kurki-Suonio and A. M. C. Le Brun and S. Ligori and P. B. Lilje and V. Lindholm and I. Lloro and G. Mainetti and E. Maiorano and O. Mansutti and S. Marcin and O. Marggraf and M. Martinelli and N. Martinet and F. Marulli and R. J. Massey and E. Medinaceli and S. Mei and E. Merlin and G. Meylan and A. Mora and M. Moresco and L. Moscardini and E. Munari and R. Nakajima and C. Neissner and R. C. Nichol and S. -M. Niemi and J. W. Nightingale and C. Padilla and S. Paltani and F. Pasian and K. Pedersen and W. J. Percival and V. Pettorino and S. Pires and G. Polenta and M. Poncet and L. A. Popa and F. Raison and A. Renzi and J. Rhodes and G. Riccio and E. Romelli and M. Roncarelli and R. Saglia and Z. Sakr and D. Sapone and B. Sartoris and M. Schirmer and P. Schneider and A. Secroun and G. Seidel and E. Sihvola and P. Simon and C. Sirignano and G. Sirri and L. Stanco and P. Tallada-Crespí and A. N. Taylor and I. Tereno and N. Tessore and S. Toft and F. Torradeflot and I. Tutusaus and L. Valenziano and J. Valiviita and T. Vassallo and G. Verdoes Kleijn and A. Veropalumbo and Y. Wang and J. Weller and A. Zacchei and G. Zamorani and E. Zucca and M. Ballardini and E. Bozzo and C. Burigana and R. Cabanac and M. Calabrese and A. Cappi and T. Castro and J. A. Escartin Vigo and L. Gabarra and S. Hemmati and J. Macias-Perez and R. Maoli and J. Martín-Fleitas and N. Mauri and P. Monaco and A. A. Nucita and A. Pezzotta and M. Pöntinen and I. Risso and V. Scottez and M. Sereno and M. Tenti and M. Tucci and M. Viel and M. Wiesmann and Y. Akrami and I. T. Andika and G. Angora and S. Anselmi and M. Archidiacono and F. Atrio-Barandela and L. Bazzanini and P. Bergamini and D. Bertacca and M. Bethermin and F. Beutler and A. Blanchard and L. Blot and S. Borgani and M. L. Brown and S. Bruton and A. Calabro and B. Camacho Quevedo and F. Caro and C. S. Carvalho and Y. Charles and F. Cogato and S. Conseil and A. R. Cooray and O. Cucciati and S. Davini and F. De Paolis and G. Desprez and A. Díaz-Sánchez and S. Di Domizio and J. M. Diego and P. -A. Duc and V. Duret and M. Y. Elkhashab and A. Enia and Y. Fang and A. Finoguenov and A. Franco and K. Ganga and T. Gasparetto and E. Gaztanaga and F. Giacomini and F. Gianotti and G. Gozaliasl and M. Guidi and C. M. Gutierrez and A. Hall and C. Hernández-Monteagudo and H. Hildebrandt and J. Hjorth and J. J. E. Kajava and Y. Kang and V. Kansal and D. Karagiannis and K. Kiiveri and J. Kim and C. C. Kirkpatrick and S. Kruk and F. Lepori and G. Leroy and J. Lesgourgues and T. I. Liaudat and S. J. Liu and A. Loureiro and M. Magliocchetti and E. A. Magnier and F. Mannucci and C. J. A. P. Martins and L. Maurin and M. Miluzio and C. Moretti and G. Morgante and K. Naidoo and A. Navarro-Alsina and S. Nesseris and D. Paoletti and F. Passalacqua and K. Paterson and L. Patrizii and D. Potter and G. W. Pratt and S. Quai and M. Radovich and W. Roster and S. Sacquegna and M. Sahlén and D. B. Sanders and E. Sarpa and C. Scarlata and A. Schneider and M. Schultheis and D. Sciotti and E. Sellentin and L. C. Smith and J. G. Sorce and K. Tanidis and C. Tao and F. Tarsitano and G. Testera and R. Teyssier and S. Tosi and A. Troja and A. Venhola and D. Vergani and G. Vernardos and G. Verza and S. Vinciguerra and M. Walmsley and N. A. Walton and A. H. Wright},
journal= {arXiv preprint arXiv:2604.21977},
year = {2026}
}
备注
21 pages, 6 figures, 1 table,submitted to A&A journal, dataset available at https://zenodo.org/records/17425610, software available at https://github.com/SaamieVincken/AstroVink