SLSim: a strong lensing population simulation package
Stony Brook University（石溪大学）；Kavli Institute for Particle Astrophysics and Cosmology, Department of Physics, Stanford University（斯坦福大学物理系卡弗里粒子天体物理与宇宙学研究所）；SLAC National Accelerator Laboratory（SLAC国家加速器实验室）；The Graduate Center of the City University of New York（纽约市立大学研究生中心）；Department of Astrophysics, American Museum of Natural History（美国自然历史博物馆天体物理系）；Lehman College of the CUNY（纽约市立大学雷曼学院）；Masaryk University（马萨里克大学）；Chiba University（千叶大学）；Boston University（波士顿大学）；University of Michigan（密歇根大学）
Narayan Khadka, Simon Birrer, Henry Best, Paras Sharma, Katsuya T. Abe, Xianzhe Tang, Carly Mistick, Felipe Urcelay, Emrecan M. Sonmez, Nikki Arendse, Sydney Er… 展开作者
Narayan Khadka, Simon Birrer, Henry Best, Paras Sharma, Katsuya T. Abe, Xianzhe Tang, Carly Mistick, Felipe Urcelay, Emrecan M. Sonmez, Nikki Arendse, Sydney Erickson, Jacob O. Hjortlund, Phil Holloway, Alan Huang, Rahul Karthik, Mia Lamontagne, Vibhore Negi, Justin R. Pierel, Bruno Sanchez, Aysu Ece Saricaoglu, Anowar Shajib, Yixuan Shao, Padma Venkatraman, Bryce Wedig, Aadya Agrawal, Timo Anguita, Pedro Bessa, Clecio R. Bom, Sofia Castillo, Thomas Collett, Tansu Daylan, Steven Dillmann, Margherita Grespan, Erin E. Hayes, Remy Joseph, Richard Kessler, Tian Li, Phil Marshall, Anupreeta More, Veronica Motta, Gautham Narayan, Matt O'Dowd, Masamune Oguri, Graham Smith, Aprajita Verma, Giorgos Vernardos, the Strong Lensing Science Collaboration, the LSST Dark Energy Science Collaboration
引力透镜通过使光线在大质量物体周围弯曲，为宇宙学提供了独特的见解。特别是强引力透镜，会产生放大且通常多重成像的遥远源，这对于精确的宇宙学测量和理解宇宙中暗物质的分布至关重要。当前的研究受到强引力透镜数量的限制。从即将到来的宇宙学巡天中，我们预计无论是静态还是瞬变现象，透镜数量将增加几个数量级。然而，从诸如Vera C. Rubin天文台时空遗产巡天（LSST）等大规模巡天中探测和分析这些事件面临着重大挑战。为应对这些挑战，我们引入了SLSim，这是一个专为Vera C. Rubin天文台定制的多功能模拟工具。SLSim将先进的天体物理模型与计算效率相结合，在真实的观测条件下生成合成的强透镜星系群。SLSim模拟静态和可变的透镜场景，这对于宇宙学研究、训练和测试透镜搜索及数据分析管道至关重要。本文详细介绍了SLSim的设计与实现，强调了其模块化及其在各种天体物理领域的适用性。通过与观测数据和现有模拟的验证，确认了SLSim在再现观测到的透镜现象方面的准确性。SLSim在https://github.com/LSST-strong-lensing/slsim上公开提供，我们预计其功能将持续发展和扩展。鼓励用户查看存储库以获取更新，并为正在进行的强透镜模拟社区工作做出贡献。
英文摘要：
Gravitational lensing offers unique insights into cosmology by bending light around massive objects. Strong gravitational lensing, in particular, produces magnified and often multiple images of distant sources, crucial for precise cosmological measurements and understanding the distribution of dark matter in the universe. Current studies are limited by the number of strong gravitational lenses. From upcoming cosmological surveys, we anticipate observing a several orders of magnitude increase in the number of lenses, for both static and transient phenomena. However, detecting and analyzing these events from vast surveys like Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) presents significant challenges. To prepare for these challenges, we introduce SLSim, a versatile simulation tool tailored for the Vera C. Rubin Observatory. SLSim integrates advanced astrophysical models with computational efficiency to generate synthetic strong lens populations under realistic observational conditions. SLSim simulates static and variable lensing scenarios, essential for cosmological studies, training and testing lens search and data analysis pipelines. This paper details SLSim,'s design and implementation, emphasizing its modularity and capabilities across various astrophysical regimes. Validation against observational data and existing simulations confirms SLSim's accuracy in reproducing observed lensing phenomena. SLSim is publicly available at https://github.com/LSST-strong-lensing/slsim, and we anticipate continued development and expansion of its capabilities. Users are encouraged to check the repository for updates and to contribute to ongoing community efforts in strong lensing simulations.
cloelike: A Python Library for Cosmological Likelihood Inference in the Euclid Era
Waterloo Centre for Astrophysics, University of Waterloo（滑铁卢天体物理中心，滑铁卢大学）；Leiden Observatory, Leiden University（莱顿天文台，莱顿大学）；Centre for Astrophysics Research, University of Hertfordshire（天体物理学研究中心，赫特福德大学）；Scientific Information, German Aerospace Center (DLR)（科学信息部，德国航空航天中心）；INAF - Osservatorio Astronomico di Trieste（意大利国家天体物理研究所 - 的里雅斯特天文台）；INAF - Osservatorio Astronomico di Brera（意大利国家天体物理研究所 - 布雷拉天文台）；Institute of Space Sciences (ICE, CSIC)（空间科学研究所）；INAF - IASF Milano（意大利国家天体物理研究所 - 米兰天体物理研究所）；Astronomical Institute (AIRUB), Ruhr University Bochum（天文研究所，鲁尔大学波鸿分校）；Department of Physics, University of Oxford（物理系，牛津大学）；Dipartimento di Fisica "Aldo Pontremoli", Università degli Studi di Milano（物理系，米兰大学）；IRAP, Université de Toulouse（天体物理研究所，图卢兹大学）；Osservatorio Astronomico di Roma（罗马天文台）；Mullard Space Science Laboratory, University College London（穆拉德太空科学实验室，伦敦大学学院）；Software Institut d’Estudis Espacials de Catalunya (IEEC)（加泰罗尼亚空间研究研究所）
Stony Brook University（石溪大学）；Laboratoire Univers et Particules de Montpellier, CNRS and Université de Montpellier (UMR-5299)（蒙彼利埃宇宙与粒子实验室，法国国家科学研究中心和蒙彼利埃大学（UMR-5299））；Max-Planck-Institut für Astrophysik（马克斯·普朗克天体物理学研究所）；Technical University of Munich（慕尼黑工业大学）；University of Chicago（芝加哥大学）；Kavli Institute for Cosmological Physics（卡弗里宇宙物理学研究所）；Independent University, Bangladesh（孟加拉独立大学）；University of Illinois（伊利诺伊大学）
Cosmology with supernova Encore in the strong lensing cluster MACS J0138-2155: Lens model comparison and H0 measurement
Technical University of Munich（慕尼黑工业大学）；Max-Planck-Institut für Astrophysik（马克斯·普朗克天体物理学研究所）；Instituto de Física de Cantabria (CSIC-UC)（坎塔布里亚物理研究所（CSIC-UC））；INAF – IASF Milano（意大利国家天体物理研究所 - 米兰天文物理研究所）；Università degli Studi di Milano（米兰大学）；INAF – OAS, Osservatorio di Astrofisica e Scienza dello Spazio di Bologna（意大利国家天体物理研究所 - 博洛尼亚天文与空间科学观测站）；Yonsei University（延世大学）
TDCOSMO XIV: Practical Techniques for Estimating External Convergence of Strong Gravitational Lens Systems and Applications to the SDSS J0924+0219 System
