Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration | |
Prather,Ben S.149; Dexter,Jason148; Moscibrodzka,Monika147; Pu,Hung-Yi144,145,146; Bronzwaer,Thomas147; Davelaar,Jordy141,142,143; Younsi,Ziri139,140; Gammie,Charles F.136,137,138; Gold,Roman135; Wong,George N.133,134 | |
刊名 | The Astrophysical Journal |
2023-06-01 | |
卷号 | 950期号:1 |
ISSN号 | 0004-637X |
DOI | 10.3847/1538-4357/acc586 |
产权排序 | 第109完成单位 |
文献子类 | Article |
英文摘要 | Interpretation of resolved polarized images of black holes by the Event Horizon Telescope (EHT) requires predictions of the polarized emission observable by an Earth-based instrument for a particular model of the black hole accretion system. Such predictions are generated by general relativistic radiative transfer (GRRT) codes, which integrate the equations of polarized radiative transfer in curved spacetime. A selection of ray-tracing GRRT codes used within the EHT Collaboration is evaluated for accuracy and consistency in producing a selection of test images, demonstrating that the various methods and implementations of radiative transfer calculations are highly consistent. When imaging an analytic accretion model, we find that all codes produce images similar within a pixel-wise normalized mean squared error (NMSE) of 0.012 in the worst case. When imaging a snapshot from a cell-based magnetohydrodynamic simulation, we find all test images to be similar within NMSEs of 0.02, 0.04, 0.04, and 0.12 in Stokes I, Q, U, and V, respectively. We additionally find the values of several image metrics relevant to published EHT results to be in agreement to much better precision than measurement uncertainties. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
语种 | 英语 |
出版者 | The American Astronomical Society |
WOS记录号 | IOP:APJ_950_1_35 |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/26126] |
专题 | 云南天文台_高能天体物理研究组 |
通讯作者 | Prather,Ben S. |
作者单位 | 1.Google Research, 355 Main Street, Cambridge, MA 02142, USA 2.Bard College, 30 Campus Road, Annandale-on-Hudson, NY 12504, USA 3.Astronomy Department, University of Science and Technology of China, Hefei 230026, People's Republic of China 4.School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China 5.School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, People's Republic of China 6.Radboud Excellence Fellow of Radboud University, Nijmegen, The Netherlands 7.Tuorla Observatory, Department of Physics and Astronomy, University of Turku, Finland 8.Physics Department, Brandeis University, 415 South Street, Waltham, MA 02453, USA 9.Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE, UK 10.University of New Mexico, Department of Physics and Astronomy, Albuquerque, NM 87131, USA |
推荐引用方式 GB/T 7714 | Prather,Ben S.,Dexter,Jason,Moscibrodzka,Monika,et al. Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration[J]. The Astrophysical Journal,2023,950(1). |
APA | Prather,Ben S..,Dexter,Jason.,Moscibrodzka,Monika.,Pu,Hung-Yi.,Bronzwaer,Thomas.,...&,.(2023).Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration.The Astrophysical Journal,950(1). |
MLA | Prather,Ben S.,et al."Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration".The Astrophysical Journal 950.1(2023). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论