当前位置: X-MOL 学术Astron. Astrophys. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Euclid preparation
Astronomy & Astrophysics ( IF 6.5 ) Pub Date : 2024-05-14 , DOI: 10.1051/0004-6361/202348388
, T. Castro , S. Borgani , M. Costanzi , J. Dakin , K. Dolag , A. Fumagalli , A. Ragagnin , A. Saro , A. M. C. Le Brun , N. Aghanim , A. Amara , S. Andreon , N. Auricchio , M. Baldi , S. Bardelli , C. Bodendorf , D. Bonino , E. Branchini , M. Brescia , J. Brinchmann , S. Camera , V. Capobianco , C. Carbone , J. Carretero , S. Casas , M. Castellano , S. Cavuoti , A. Cimatti , G. Congedo , C. J. Conselice , L. Conversi , Y. Copin , L. Corcione , F. Courbin , H. M. Courtois , M. Cropper , A. Da Silva , H. Degaudenzi , A. M. Di Giorgio , J. Dinis , F. Dubath , C. A. J. Duncan , X. Dupac , M. Farina , S. Farrens , S. Ferriol , M. Frailis , E. Franceschi , M. Fumana , S. Galeotta , B. Gillis , C. Giocoli , A. Grazian , F. Grupp , S. V. H. Haugan , W. Holmes , F. Hormuth , A. Hornstrup , K. Jahnke , E. Keihänen , S. Kermiche , A. Kiessling , M. Kilbinger , B. Kubik , M. Kunz , H. Kurki-Suonio , S. Ligori , P. B. Lilje , V. Lindholm , I. Lloro , E. Maiorano , O. Mansutti , O. Marggraf , K. Markovic , N. Martinet , F. Marulli , R. Massey , S. Maurogordato , E. Medinaceli , M. Meneghetti , E. Merlin , G. Meylan , M. Moresco , L. Moscardini , E. Munari , S.-M. Niemi , C. Padilla , S. Paltani , F. Pasian , V. Pettorino , S. Pires , G. Polenta , M. Poncet , L. A. Popa , L. Pozzetti , F. Raison , R. Rebolo , A. Renzi , J. Rhodes , G. Riccio , E. Romelli , M. Roncarelli , R. Saglia , D. Sapone , B. Sartoris , P. Schneider , T. Schrabback , A. Secroun , G. Seidel , S. Serrano , C. Sirignano , G. Sirri , L. Stanco , J.-L. Starck , P. Tallada-Crespí , A. N. Taylor , I. Tereno , R. Toledo-Moreo , F. Torradeflot , I. Tutusaus , E. A. Valentijn , L. Valenziano , T. Vassallo , A. Veropalumbo , Y. Wang , J. Weller , A. Zacchei , G. Zamorani , J. Zoubian , E. Zucca , A. Biviano , E. Bozzo , C. Cerna , C. Colodro-Conde , D. Di Ferdinando , N. Mauri , C. Neissner , Z. Sakr , V. Scottez , M. Tenti , M. Viel , M. Wiesmann , Y. Akrami , S. Anselmi , C. Baccigalupi , M. Ballardini , A. S. Borlaff , S. Bruton , C. Burigana , R. Cabanac , A. Cappi , C. S. Carvalho , G. Castignani , G. Cañas-Herrera , K. C. Chambers , A. R. Cooray , J. Coupon , O. Cucciati , A. Díaz-Sánchez , S. Davini , S. de la Torre , G. De Lucia , G. Desprez , S. Di Domizio , H. Dole , S. Escoffier , I. Ferrero , F. Finelli , L. Gabarra , K. Ganga , J. Garcia-Bellido , F. Giacomini , G. Gozaliasl , H. Hildebrandt , S. Ilić , A. Jimanez Munñoz , J. J. E. Kajava , V. Kansal , C. C. Kirkpatrick , L. Legrand , A. Loureiro , J. Macias-Perez , M. Magliocchetti , G. Mainetti , R. Maoli , M. Martinelli , C. J. A. P. Martins , S. Matthew , M. Maturi , L. Maurin , R. B. Metcalf , M. Migliaccio , P. Monaco , G. Morgante , S. Nadathur , L. Patrizii , A. Pezzotta , V. Popa , C. Porciani , D. Potter , M. Pöntinen , P. Reimberg , P.-F. Rocci , A. G. Sánchez , J. Schaye , A. Schneider , E. Sefusatti , M. Sereno , P. Simon , A. Spurio Mancini , J. Stadel , S. A. Stanford , J. Steinwagner , G. Testera , M. Tewes , R. Teyssier , S. Toft , S. Tosi , A. Troja , M. Tucci , J. Valiviita , D. Vergani

The Euclid photometric survey of galaxy clusters stands as a powerful cosmological tool, with the capacity to significantly propel our understanding of the Universe. Despite being subdominant to dark matter and dark energy, the baryonic component of our Universe holds substantial influence over the structure and mass of galaxy clusters. This paper presents a novel model that can be used to precisely quantify the impact of baryons on the virial halo masses of galaxy clusters using the baryon fraction within a cluster as a proxy for their effect. Constructed on the premise of quasi-adiabaticity, the model includes two parameters, which are calibrated using non-radiative cosmological hydrodynamical simulations, and a single large-scale simulation from the Magneticum set, which includes the physical processes driving galaxy formation. As a main result of our analysis, we demonstrate that this model delivers a remarkable 1% relative accuracy in determining the virial dark matter-only equivalent mass of galaxy clusters starting from the corresponding total cluster mass and baryon fraction measured in hydrodynamical simulations. Furthermore, we demonstrate that this result is robust against changes in cosmological parameters and against variation of the numerical implementation of the subresolution physical processes included in the simulations. Our work substantiates previous claims regarding the impact of baryons on cluster cosmology studies. In particular, we show how neglecting these effects would lead to biased cosmological constraints for a Euclid-like cluster abundance analysis. Importantly, we demonstrate that uncertainties associated with our model arising from baryonic corrections to cluster masses are subdominant when compared to the precision with which mass–observable (i.e. richness) relations will be calibrated using Euclid and to our current understanding of the baryon fraction within galaxy clusters.

中文翻译:

欧几里得准备

欧几里得星系团光度测量是一种强大的宇宙学工具,能够显着推动我们对宇宙的理解。尽管暗物质和暗能量占主导地位,但我们宇宙的重子成分对星系团的结构和质量具有重大影响。本文提出了一种新颖的模型,可以使用星团内的重子分数作为其影响的代理来精确量化重子对星系团维里晕质量的影响。该模型是在准绝热性的前提下构建的,包括两个参数(使用非辐射宇宙流体动力学模拟进行校准)和来自 Magneticum 集的单个大规模模拟,其中包括驱动星系形成的物理过程。作为我们分析的主要结果,我们证明该模型在从流体动力学模拟中测量的相应的总星团质量和重子分数开始确定星系团的维里暗物质等效质量方面具有显着的 1% 相对精度。此外,我们证明该结果对于宇宙学参数的变化以及模拟中包含的亚分辨率物理过程的数值实现的变化是稳健的。我们的工作证实了之前关于重子对星团宇宙学研究影响的主张。特别是,我们展示了忽略这些影响将如何导致欧几里得类簇丰度分析的宇宙学约束出现偏差。重要的是,我们证明,与使用欧几里得校准质量可观测(即丰富度)关系的精度以及我们目前对星系内重子分数的理解相比,由对星团质量的重子校正引起的与我们的模型相关的不确定性是次要的集群。
更新日期:2024-05-14
down
wechat
bug