欧几里得快速数据发布 (Q1) -- 光谱测量的特征与局限性
宇宙学与河外天体物理
2026-03-11 v2
摘要
欧几里得数据管线的光谱处理函数 (PF) 专用于自动分析一维光谱，以确定红移、线Flux和光谱分类。首次欧几里得快速数据发布 (Q1) 为所有 的对象提供这些测量，这些对象来自光度调查。本文概述了SPE PF算法，并通过将其结果与暗能量光谱仪 (DESI) 调查中来自欧几里得北方深场的高质量红移进行比较来评估其性能。我们的发现表明，在成功的红移测量方面表现出惊人的准确性，其偏差小于 ，且精度约为 。大多数光谱只有一个光谱特征或一个特征都没有。为避免虚假检测，其中中的噪声特征被误解为线或线被误认，因此必须对诸如红移概率或 \ha\ Flux和信噪比等数量应用明确的准则。通过使用经过良好调谐的质量选择，我们在目标红移范围内实现了89%的红移成功率 ()，该范围被DESI覆盖 ()。在该范围之外，除非源显示出特定的光谱特征（例如两个亮线或强连续光），否则红移测量更不可靠。沿整个PF链的持续改进预计将提高红移测量和光谱分类的质量，从而允许我们定义用于宇宙学分析的大规模可靠样本。总体而言，Q1的SPE结果令人鼓舞，显示出对宇宙学的有希望的前景。
引用
@article{arxiv.2503.15308,
title = {Euclid Quick Data Release (Q1) -- Characteristics and limitations of the spectroscopic measurements},
author = {Euclid Collaboration and V. Le Brun and M. Bethermin and M. Moresco and D. Vibert and D. Vergani and C. Surace and G. Zamorani and A. Allaoui and T. Bedrine and P. -Y. Chabaud and G. Daste and F. Dufresne and M. Gray and E. Rossetti and Y. Copin and S. Conseil and E. Maiorano and Z. Mao and E. Palazzi and L. Pozzetti and S. Quai and C. Scarlata and M. Talia and H. M. Courtois and L. Guzzo and B. Kubik and A. M. C. Le Brun and J. A. Peacock and D. Scott and D. Bagot and A. Basset and P. Casenove and R. Gimenez and G. Libet and M. Ruffenach and N. Aghanim and B. Altieri and A. Amara and S. Andreon and N. Auricchio and H. Aussel and C. Baccigalupi and M. Baldi and A. Balestra and S. Bardelli and P. Battaglia and A. Biviano and A. Bonchi and D. Bonino and E. Branchini and M. Brescia and J. Brinchmann and A. Caillat and S. Camera and G. Cañas-Herrera and V. Capobianco and C. Carbone and J. Carretero and S. Casas and F. J. Castander and G. Castignani and S. Cavuoti and K. C. Chambers and A. Cimatti and C. Colodro-Conde and G. Congedo and C. J. Conselice and L. Conversi and A. Costille and F. Courbin and J. -G. Cuby and A. Da Silva and H. Degaudenzi and S. de la Torre and G. De Lucia and A. M. Di Giorgio and H. Dole and M. Douspis and F. Dubath and X. Dupac and S. Dusini and A. Ealet and S. Escoffier and M. Fabricius and M. Farina and R. Farinelli and F. Faustini and S. Ferriol and S. Fotopoulou and N. Fourmanoit and M. Frailis and E. Franceschi and M. Fumana and S. Galeotta and K. George and W. Gillard and B. Gillis and C. Giocoli and J. Gracia-Carpio and B. R. Granett and A. Grazian and F. Grupp and S. V. H. Haugan and J. Hoar and H. Hoekstra and W. Holmes and F. Hormuth and A. Hornstrup and P. Hudelot and K. Jahnke and M. Jhabvala and B. Joachimi and E. Keihänen and S. Kermiche and A. Kiessling and M. Kümmel and M. Kunz and H. Kurki-Suonio and Q. Le Boulc'h and D. Le Mignant and S. Ligori and P. B. Lilje and V. Lindholm and I. Lloro and G. Mainetti and D. Maino and O. Mansutti and S. Marcin and O. Marggraf and M. Martinelli and N. Martinet and F. Marulli and R. Massey and S. Maurogordato and E. Medinaceli and S. Mei and M. Melchior and Y. Mellier and M. Meneghetti and E. Merlin and G. Meylan and A. Mora and L. Moscardini 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 R. Rebolo 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. Sauvage and J. A. Schewtschenko and M. Schirmer and P. Schneider and T. Schrabback and M. Scodeggio and A. Secroun and G. Seidel and M. Seiffert and C. Sirignano and G. Sirri and L. Stanco and J. Steinwagner and P. Tallada-Crespí and A. N. Taylor and H. I. Teplitz and I. Tereno and N. Tessore and S. Toft and R. Toledo-Moreo 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 F. M. Zerbi and I. A. Zinchenko and E. Zucca and V. Allevato and M. Ballardini and M. Bolzonella and E. Bozzo and C. Burigana and R. Cabanac and A. Cappi and D. Di Ferdinando and J. A. Escartin Vigo and G. Fabbian and L. Gabarra and W. G. Hartley and J. Martín-Fleitas and S. Matthew and M. Maturi and N. Mauri and R. B. Metcalf and A. Pezzotta and M. Pöntinen and C. Porciani and I. Risso and V. Scottez and M. Sereno and M. Tenti and M. Viel and M. Wiesmann and Y. Akrami and S. Alvi and I. T. Andika and S. Anselmi and M. Archidiacono and F. Atrio-Barandela and S. Avila and M. Bella and P. Bergamini and D. Bertacca 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 T. Castro and Y. Charles and R. Chary and F. Cogato and A. R. Cooray and O. Cucciati and S. Davini and F. De Paolis and G. Desprez and A. Díaz-Sánchez and J. J. Diaz and S. Di Domizio and J. M. Diego and P. Dimauro and P. -A. Duc and A. Enia and Y. Fang and A. M. N. Ferguson and A. G. Ferrari and A. Finoguenov and A. Fontana and A. Franco and K. Ganga and J. García-Bellido and T. Gasparetto and V. Gautard and E. Gaztanaga and F. Giacomini and F. Gianotti and G. Gozaliasl and A. Gregorio 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 C. C. Kirkpatrick and S. Kruk and L. Legrand and M. Lembo and F. Lepori and G. F. Lesci and J. Lesgourgues and L. Leuzzi and T. I. Liaudat and S. J. Liu and A. Loureiro and J. Macias-Perez and M. Magliocchetti and E. A. Magnier and C. Mancini and F. Mannucci and R. Maoli and C. J. A. P. Martins and L. Maurin and M. Miluzio and P. Monaco and A. Montoro and C. Moretti and G. Morgante and S. Nadathur and K. Naidoo and A. Navarro-Alsina and S. Nesseris and F. Passalacqua and K. Paterson and L. Patrizii and A. Pisani and D. Potter and M. Radovich and P. -F. Rocci and S. Sacquegna and M. Sahlén and D. B. Sanders and E. Sarpa and A. Schneider and D. Sciotti and E. Sellentin and F. Shankar and L. C. Smith and K. Tanidis and G. Testera and R. Teyssier and S. Tosi and A. Troja and M. Tucci and C. Valieri and A. Venhola and G. Verza and P. Vielzeuf and N. A. Walton and J. R. Weaver and L. Zalesky and J. G. Sorce},
journal= {arXiv preprint arXiv:2503.15308},
year = {2026}
}
备注
14 pages, 8 figures