Euclid 准备工作。XVIII. NISP 测光系统
天体物理仪器与方法
2022-06-29 v2 宇宙学与河外天体物理
摘要
Euclid 将是首个在 0.95-2.02 m 波段巡天大部分河外天空的空间任务，其 5 点源中位深度为 24.4 AB mag。这一独特的测光数据集将在 Euclid 核心科学之外得到广泛应用。在本文中，我们给出由近红外光谱仪与测光计 (NISP) 使用的 Euclid Y_E、J_E 和 H_E 通带及相应测光系统的精确计算。我们特别关注视场中通带的变化，除其他外考虑了空间变化的滤光片透射率，以及利用光学光线追迹的滤光片衬底上入射角的变化。响应曲线的截止与起切波长——及其在视场中的变化——以 0.8 nm 精度确定，这对 Euclid 所需的测光红移精度至关重要。在计算 AB mag 系统中的测光零点后，我们给出针对正常恒星、红矮星与棕矮星以及星系分别的、与常用地基近红外测光系统之间的线性变换。提供了一个用于对任意通带和光谱能量分布计算精确星等的 Python 工具。我们讨论了从空间风化到材料放气等可能缓慢改变 Euclid 光谱响应的各种因素。在绝对流量尺度上，Euclid 在轨定标程序将 NISP 测光系统连接到哈勃空间望远镜分光光度白矮星标准星；在相对流量尺度上，响应的色演化以毫星等水平追踪。以此方式，我们建立了一个在 Euclid 整个寿命期内完全受控的精确测光系统。
引用
@article{arxiv.2203.01650,
title = {Euclid preparation. XVIII. The NISP photometric system},
author = {Euclid Collaboration and M. Schirmer and K. Jahnke and G. Seidel and H. Aussel and C. Bodendorf and F. Grupp and F. Hormuth and S. Wachter and P. N. Appleton and R. Barbier and J. Brinchmann and J. M. Carrasco and F. J. Castander and J. Coupon and F. De Paolis and A. Franco and K. Ganga and P. Hudelot and E. Jullo and A. Lancon and A. A. Nucita and S. Paltani and G. Smadja and L. M. G. Venancio and F. Strafella and M. Weiler and A. Amara and T. Auphan and N. Auricchio and A. Balestra and R. Bender and D. Bonino and E. Branchini and M. Brescia and V. Capobianco and C. Carbone and J. Carretero and R. Casas and M. Castellano and S. Cavuoti and A. Cimatti and R. Cledassou and G. Congedo and C. J. Conselice and L. Conversi and Y. Copin and L. Corcione and A. Costille and F. Courbin and A. Da Silva and H. Degaudenzi and M. Douspis and F. Dubath and X. Dupac and S. Dusini and A. Ealet and S. Farrens and S. Ferriol and P. Fosalba and M. Frailis and E. Franceschi and P. Franzetti and M. Fumana and B. Garilli and W. Gillard and B. Gillis and C. Giocoli and A. Grazian and L. Guzzo and S. V. H. Haugan and H. Hoekstra and W. Holmes and A. Hornstrup and S. Kermiche and A. Kiessling and M. Kilbinger and T. Kitching and R. Kohley and M. Kümmel and M. Kunz and H. Kurki-Suonio and R. Laureijs and S. Ligori and P. B. Lilje and I. Lloro and T. Maciaszek and E. Maiorano and O. Mansutti and O. Marggraf and K. Markovic and F. Marulli and R. Massey and S. Maurogordato and Y. Mellier and M. Meneghetti and E. Merlin and G. Meylan and M. Moresco and L. Moscardini and E. Munari and R. Nakajima and R. C. Nichol and S. M. Niemi and C. Padilla and F. Pasian and K. Pedersen and W. J. Percival and V. Pettorino and S. Pires and M. Poncet and L. Popa and L. Pozzetti and E. Prieto and F. Raison and J. Rhodes and H. -W. Rix and M. Roncarelli and E. Rossetti and R. Saglia and B. Sartoris and R. Scaramella and P. Schneider and A. Secroun and S. Serrano and C. Sirignano and G. Sirri and L. Stanco and P. Tallada-Crespí and A. N. Taylor and H. I. Teplitz and I. Tereno and R. Toledo-Moreo and F. Torradeflot and M. Trifoglio and E. A. Valentijn and L. Valenziano and Y. Wang and J. Weller and G. Zamorani and J. Zoubian and S. Andreon and S. Bardelli and A. Boucaud and S. Camera and R. Farinelli and J. Graciá-Carpio and D. Maino and E. Medinaceli and S. Mei and N. Morisset and G. Polenta and A. Renzi and E. Romelli and M. Tenti and T. Vassallo and A. Zacchei and E. Zucca and C. Baccigalupi and A. Balaguera-Antolínez and A. Biviano and A. Blanchard and S. Borgani and E. Bozzo and C. Burigana and R. Cabanac and A. Cappi and C. S. Carvalho and S. Casas and G. Castignani and C. Colodro-Conde and A. R. Cooray and H. M. Courtois and M. Crocce and J. -G. Cuby and S. Davini and S. de la Torre and D. Di Ferdinando and J. A. Escartin and M. Farina and P. G. Ferreira and F. Finelli and S. Fotopoulou and S. Galeotta and J. Garcia-Bellido and E. Gaztanaga and K. George and G. Gozaliasl and I. M. Hook and S. Ilić and V. Kansal and A. Kashlinsky and E. Keihanen and C. C. Kirkpatrick and V. Lindholm and G. Mainetti and R. Maoli and M. Martinelli and N. Martinet and M. Maturi and N. Mauri and H. J. McCracken and R. B. Metcalf and P. Monaco and G. Morgante and J. Nightingale and L. Patrizii and A. Peel and V. Popa and C. Porciani and D. Potter and P. Reimberg and G. Riccio and A. G. Sánchez and D. Sapone and V. Scottez and E. Sefusatti and R. Teyssier and I. Tutusaus and C. Valieri and J. Valiviita and M. Viel and H. Hildebrandt},
journal= {arXiv preprint arXiv:2203.01650},
year = {2022}
}
备注
33 pages, 25 figures, accepted for publication in A&A