Euclid 准备：XVI. 利用 Euclid/VIS 探索超低面亮度宇宙
天体物理仪器与方法
2022-01-19 v1 星系天体物理
摘要
虽然 Euclid 是一项专门设计用于研究暗能量和暗物质本质的 ESA 任务，但其计划中前所未有的巡天面积（ deg）、空间分辨率、低天空背景和深度的结合，也使 Euclid 成为研究低面亮度宇宙的优秀空间天文台。扩展低面亮度结构的科学利用需要尚未测试的专门校准程序。我们通过识别和量化天空背景源和杂散光污染来研究 Euclid 探测扩展低面亮度结构的能力。我们测试了生成天空平场以减少大尺度残余梯度的可行性，从而揭示在 Euclid 巡天中观测到的星系的扩展发射。我们模拟了一组真实的 Euclid/VIS 观测，同时考虑了仪器和天文污染源，包括宇宙射线、杂散光、黄道光、ISM 和 CIB，同时模拟了 FOV 中背景源存在的影响。我们证明，校准灯、天空平场和自校准的组合将能够在 Wide Survey 中恢复极限面亮度星等为 mag arcsec（， arcsec）的发射，在 Deep Surveys 中达到深 2 个星等的区域。Euclid/VIS 有潜力成为优秀的低面亮度天文台。通过填补大尺度上像素间校准灯平场与自校准观测之间的空白，天空平场的应用将提高 VIS 探测器在大于 1 度尺度上（直至 FOV 大小）的灵敏度，使 Euclid 能够探测到低于 mag arcsec 及更暗的扩展面亮度结构。
引用
@article{arxiv.2108.10321,
title = {Euclid preparation: XVI. Exploring the ultra low-surface brightness Universe with Euclid/VIS},
author = {A. S. Borlaff and P. Gómez-Alvarez and B. Altieri and P. M. Marcum and R. Vavrek and R. Laureijs and R. Kohley and F. Buitrago and J. C. Cuillandre and P. A. Duc and L. M. Gaspar Venancio and A. Amara and S. Andreon and N. Auricchio and R. Azzollini and C. Baccigalupi and A. Balaguera-Antolínez and M. Baldi and S. Bardelli and R. Bender and A. Biviano and C. Bodendorf and D. Bonino and E. Bozzo and E. Branchini and M. Brescia and J. Brinchmann and C. Burigana and R. Cabanac and S. Camera and G. P. Candini and V. Capobianco and A. Cappi and C. Carbone and J. Carretero and C. S. Carvalho and S. Casas and F. J. Castander and M. Castellano and G. Castignani and S. Cavuoti and A. Cimatti and R. Cledassou and C. Colodro-Conde and G. Congedo and C. J. Conselice and L. Conversi and Y. Copin and L. Corcione and J. Coupon and H. M. Courtois and M. Cropper and A. Da Silva and H. Degaudenzi and D. Di Ferdinando and M. Douspis and F. Dubath and C. A. J. Duncan and X. Dupac and S. Dusini and A. Ealet and M. Fabricius and M. Farina and S. Farrens and P. G. Ferreira and S. Ferriol and F. Finelli and P. Flose-Reimberg and P. Fosalba and M. Frailis and E. Franceschi and M. Fumana and S. Galeotta and K. Ganga and B. Garilli and B. Gillis and C. Giocoli and G. Gozaliasl and J. Graciá-Carpio and A. Grazian and F. Grupp and S. V. H. Haugan and W. Holmes and F. Hormuth and K. Jahnke and E. Keihanen and S. Kermiche and A. Kiessling and M. Kilbinger and C. C. Kirkpatrick and T. Kitching and J. H. Knapen and B. Kubik and M. Kümmel and M. Kunz and H. Kurki-Suonio and P. Liebing and S. Ligori and P. B. Lilje and V. Lindholm and I. Lloro and G. Mainetti and D. Maino and O. Mansutti and O. Marggraf and K. Markovic and M. Martinelli and N. Martinet and D. Martínez-Delgado and F. Marulli and R. Massey and M. Maturi and S. Maurogordato and E. Medinaceli and S. Mei and M. Meneghetti and E. Merlin and R. B. Metcalf and G. Meylan and M. Moresco and G. Morgante and L. Moscardini and E. Munari and R. Nakajima and C. Neissner and S. M. Niemi and J. W. Nightingale and A. Nucita and C. Padilla and S. Paltani and F. Pasian and L. Patrizii and K. Pedersen and W. J. Percival and V. Pettorino and S. Pires and M. Poncet and L. Popa and D. Potter and L. Pozzetti and F. Raison and R. Rebolo and A. Renzi and J. Rhodes and G. Riccio and E. Romelli and M. Roncarelli and C. Rosset and E. Rossetti and R. Saglia and A. G. Sánchez and D. Sapone and M. Sauvage and P. Schneider and V. Scottez and A. Secroun and G. Seidel and S. Serrano and C. Sirignano and G. Sirri and J. Skottfelt and L. Stanco and J. L. Starck and F. Sureau and P. Tallada-Crespí and A. N. Taylor and M. Tenti and I. Tereno and R. Teyssier and R. Toledo-Moreo and F. Torradeflot and I. Tutusaus and E. A. Valentijn and L. Valenziano and J. Valiviita and T. Vassallo and M. Viel and Y. Wang and J. Weller and L. Whittaker and A. Zacchei and G. Zamorani and E. Zucca},
journal= {arXiv preprint arXiv:2108.10321},
year = {2022}
}
备注
23 pages, 13 figures, Euclid Consortium Key Project, accepted for publication in Astronomy & Astrophysics