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A roadmap for generative mapping: unlocking the power of generative AI for map-making

Autor: Wu, Sidi, Henggeler, Katharina, Chen, Yizi, Hurni, Lorenz

Maps are broadly relevant across various fields, serving as valuable tools for presenting spatial phenomena and communicating spatial knowledge. However, map-making is still largely confined to those with expertise in GIS and cartography due to the s

Externí odkaz: http://arxiv.org/abs/2410.15770

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Map-making strategies for next generation CMB experiments

Autor: Biquard, Simon

I briefly review some of the most common map-making strategies for experiments targeting the polarization of the Cosmic Microwave Background (CMB), in light of the anticipated volumes of data collected by next generation observatories such as Simons

Externí odkaz: http://arxiv.org/abs/2406.15415

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An introduction to map-making for CMB experiments

Autor: Biquard, Simon

The cosmic microwave background (CMB) anisotropies are a powerful probe of the early universe, and have largely contributed to establishing the current standard cosmological model. To extract the information encoded in those tiny variations, one must

Externí odkaz: http://arxiv.org/abs/2405.10239

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Akademický článek

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Optimal map-making with singularities

Autor: Zhang, Zirui, Wu, Yiwen, Liu, Yang, Li, Siyu, Li, Hong, Liu, Hao

Publikováno v: JCAP04(2024)019

In this work, we investigate the optimal map-making technique for the linear system $d=Ax+n$ while carefully taking into account singularities that may come from either the covariance matrix $C = \langle nn^t \rangle$ or the main matrix $A$. We first

Externí odkaz: http://arxiv.org/abs/2309.11090

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A simulation of calibration and map-making errors of the Tianlai cylinder pathfinder array

Autor: Yu, Kaifeng, Wu, Fengquan, Zuo, Shifan, Li, Jixia, Sun, Shijie, Wang, Yougang, Chen, Xuelei

Publikováno v: Research in Astronomy and Astrophysics, 23, 105008 (2023)

The Tianlai cylinder array is a pathfinder for developing and testing 21cm intensity mapping techniques. In this paper, we use numerical simulation to assess how its measurement is affected by thermal noise and the errors in calibration and map-makin

Externí odkaz: http://arxiv.org/abs/2308.04931

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