Euclid 准备。XXXII. 利用 Three Hundred Project 流体动力学模拟评估弱透镜星系团质量偏差
宇宙学与河外天体物理
2024-01-17 v2 星系天体物理
摘要
从 ESA Euclid 数据中提取的星系团测光星表预计将在宇宙学研究中极具竞争力。利用最先进的流体动力学模拟，我们给出系统性分析，模拟了处于多种动力学状态及广泛红移范围内的星系团所预期的弱透镜轮廓。为推导星系团质量，我们采用与 Euclid 联盟内专用处理函数的实现相一致的模型，发现当联合建模 Navarro-Frenk-White 晕轮廓的质量与浓度参数时，弱透镜质量相对于真实质量平均偏低 5-10%，直至 z=0.5。使用浓度固定值 时，质量偏差在 z=0.7 前降至 5% 以下，其相对不确定性也随之减小。通过沿惯性张量椭球主轴方向投影模拟弱透镜信号，我们发现取向至关重要：当星系团沿主轴取向时，透镜信号增强，恢复出的弱透镜质量相应被高估。通常，单个星系团的弱透镜质量偏差受弱透镜信噪比调制，该信噪比与用于弱透镜测量的星系数目的红移演化相关：负质量偏差倾向于在更高红移处更大。然而，当我们使用固定的浓度参数值时，红移演化趋势减弱。这些结果为未来 Euclid 与 Rubin 星系团巡天的宇宙学应用所需的弱透镜质量定标提供了坚实基础。
引用
@article{arxiv.2302.00687,
title = {Euclid preparation. XXXII. Evaluating the weak lensing cluster mass biases using the Three Hundred Project hydrodynamical simulations},
author = {Euclid Collaboration and C. Giocoli and M. Meneghetti and E. Rasia and S. Borgani and G. Despali and G. F. Lesci and F. Marulli and L. Moscardini and M. Sereno and W. Cui and A. Knebe and G. Yepes and T. Castro and P. -S. Corasaniti and S. Pires and G. Castignani and L. Ingoglia and T. Schrabback and G. W. Pratt and A. M. C. Le Brun and N. Aghanim and L. Amendola and N. Auricchio and M. Baldi and C. Bodendorf and D. Bonino and E. Branchini and M. Brescia and J. Brinchmann and S. Camera and V. Capobianco and C. Carbone and J. Carretero and F. J. Castander and M. Castellano and S. Cavuoti and R. Cledassou and G. Congedo and C. J. Conselice and L. Conversi and Y. Copin and L. Corcione and F. Courbin and M. Cropper and A. Da Silva and H. Degaudenzi and J. Dinis and F. Dubath and X. Dupac and S. Dusini and S. Farrens and S. Ferriol and P. Fosalba and M. Frailis and E. Franceschi and M. Fumana and S. Galeotta and B. Garilli and B. Gillis and A. Grazian and F. Grupp and S. V. H. Haugan and W. Holmes and A. Hornstrup and K. Jahnke and M. Kümmel and S. Kermiche and M. Kilbinger and M. Kunz and H. Kurki-Suonio and S. Ligori and P. B. Lilje and I. Lloro and E. Maiorano and O. Mansutti and O. Marggraf and K. Markovic and R. Massey and S. Maurogordato and S. Mei and E. Merlin and G. Meylan and M. Moresco and E. Munari and S. -M. Niemi and J. Nightingale and T. Nutma and C. Padilla and S. Paltani and F. Pasian and K. Pedersen and V. Pettorino 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 E. Rossetti and R. Saglia and D. Sapone and B. Sartoris and P. Schneider and A. Secroun and S. Serrano and C. Sirignano and G. Sirri and L. Stanco and J. -L. Starck and P. Tallada-Crespí and A. N. Taylor and I. Tereno and R. Toledo-Moreo and F. Torradeflot and I. Tutusaus and E. A. Valentijn and L. Valenziano and T. Vassallo and Y. Wang and J. Weller and G. Zamorani and J. Zoubian and S. Andreon and S. Bardelli and A. Boucaud and E. Bozzo and C. Colodro-Conde and D. Di Ferdinando and G. Fabbian and M. Farina and H. Israel and E. Keihänen and V. Lindholm and N. Mauri and C. Neissner and M. Schirmer and V. Scottez and M. Tenti and E. Zucca and Y. Akrami and C. Baccigalupi and M. Ballardini and F. Bernardeau and A. Biviano and A. S. Borlaff and C. Burigana and R. Cabanac and A. Cappi and C. S. Carvalho and S. Casas and K. C. Chambers and A. R. Cooray and H. M. Courtois and S. Davini and S. de la Torre and G. De Lucia and G. Desprez and H. Dole and J. A. Escartin and S. Escoffier and I. Ferrero and F. Finelli and L. Gabarra and K. Ganga and J. Garcia-Bellido and K. George and F. Giacomini and G. Gozaliasl and H. Hildebrandt and I. Hook and A. JIMENEZ MU\{N}OZ and B. Joachimi and J. J. E. Kajava and V. Kansal and C. C. Kirkpatrick and L. Legrand and A. Loureiro and J. Macias-Perez and M. Magliocchetti and G. Mainetti and R. Maoli and S. Marcin and M. Martinelli and N. Martinet and C. J. A. P. Martins and S. Matthew and L. Maurin and R. B. Metcalf and P. Monaco and G. Morgante and S. Nadathur and A. A. Nucita and L. Patrizii and A. Peel and J. Pollack and V. Popa and C. Porciani and D. Potter and M. Pöntinen and P. Reimberg and A. G. Sánchez and Z. Sakr and A. Schneider and E. Sefusatti and A. Shulevski and A. Spurio Mancini and J. Stadel and J. Steinwagner and J. Valiviita and A. Veropalumbo and M. Viel and I. A. Zinchenko},
journal= {arXiv preprint arXiv:2302.00687},
year = {2024}
}
备注
Accepted for publication in Astronomy & Astrophysics