Accès ouvert déclaré
2025
preprint
Euclid Quick Data Release (Q1): VIS processing and data products
Euclid Collaboration, T. Flanet, C. Laigle, R Massey, S. Mottet, Ryota Nakajima, J.W Nightingale, L. C. Smith, M Wander, S.A. Awan, R. Azzollini, P Casenove, Harald J. Hoekstra, Y. Mellier, M. J. Page, M Schirmer, Jacob Kegerreis, N. Aghanim, S Andreon, N. Auricchio, C. Baccigalupi, S Bardelli, Pietro Battaglia, R. Bender, A Biviano, S. Camera, J. Carretero, G. Castignani, A Cimatti, Y. Copin, F. Courbin, R da Silva, J. Dinis, X. Dupac, Maximilian Fabricius, S. Ferriol, S. Fotopoulou, N. Fourmanoit, W. Gillard, B. Gillis, J. Gracia-Carpio, W. Holmes, F. Hormuth, M Jhabvala, S. Kermiche, A. Kiessling, H Kurki-Suonio, S Ligori, V. Lindholm, I. Lloro, D. Maino, S. Maurogordato, E. Medinaceli, M Melchior, A Mora, S. Paltani, K Pedersen, V. Pettorino, S. Pires, G Polenta, L. Pozzetti, G D Racca, F. Raison, Gary E. Riccio, E. Romelli, B. Rusholme, Z Sakr, B. Sartoris, Peter M. Schneider, M. Seiffert, Paul Simon, G Sirri, A. Spurio Mancini, L Stanco, J. Steinwagner, Sune Toft, R. Toledo-Moreo, F. Torradeflot, I Tutusaus, J Valiviita, Y. Wang, F. M. Zerbi, E Zucca, M. Bolzonella, C. Burigana, R. Cabanac, Maurizio Calabrese, D. Di Ferdinando, J.A. Escartin Vigo, L Gabarra, J Martín-Fleitas, A Pezzotta, C. Porciani, Y Akrami, M Archidiacono, F. Atrio‐Barandela, M. Béthermin, L Bisigello, Samuel V. Bruton, Anthony Calabro, F Cogato, O Cucciati, S. Davini, S. Di Domizio, J. M. Diego, Pierre-Alain Duc, Y. Fang, A. M. Ferguson, A Finoguenov, T Gasparetto, F. Giacomini, C. M. Gutiérrez, C. Hernández–Monteagudo, Yongtian Kang, C. C. Kirkpatrick, Sergey Kruk, L. Legrand, J. Lesgourgues, J. F. Macías–Pérez, G Maggio, Louis Maurin, Catherine Murray, Kogieleum Naidoo, Savvas Nesseris, L Patrizii, S Quai, M. Radovich, P.-F Rocci, R. P. Rollins, M Sahlén, C. Scarlata, A. Schneider, D Sciotti, A. Silvestri, K Tanidis, G. Testera, Sébastien Tosi, A. Venhola, D. Vergani, G Verza, P Vielzeuf, D Scott
0Citations signalées, ce qui n’est pas une note de qualité
28Institutions déclarées
1Pays d’affiliation déclarés
Rattachement africain : fr.
Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
This paper describes the VIS Processing Function (VIS PF) of the Euclid ground segment pipeline, which processes and calibrates raw data from the VIS camera. We present the algorithms used in each processing element, along with a description of the on-orbit performance of VIS PF, based on Performance Verification (PV) and Q1 data. We demonstrate that the principal performance metrics (image quality, astrometric accuracy, photometric calibration) are within pre-launch specifications. The image-to-image photometric scatter is less than $0.8\%$, and absolute astrometric accuracy compared to Gaia is $5$ mas Image quality is stable over all Q1 images with a full width at half maximum (FWHM) of $0.\!^{\prime\prime}16$. The stacked images (combining four nominal and two short exposures) reach $I_\mathrm{E} = 25.6$ ($10σ$, measured as the variance of $1.\!^{\prime\prime}3$ diameter apertures). We also describe quality control metrics provided with each image, and an appendix provides a detailed description of the provided data products. The excellent quality of these images demonstrates the immense potential of Euclid VIS data for weak lensing. VIS data, covering most of the extragalactic sky, will provide a lasting high-resolution atlas of the Universe.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les sujets associés
Adaptive optics and wavefront sensingAstronomy and Astrophysical ResearchCalibration and Measurement Techniques