Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Remazeilles , Mathieu"'
How bad could it be? Modelling the 3D complexity of the polarised dust signal using moment expansion
Autor:
Vacher, Léo, Carones, Alessandro, Aumont, Jonathan, Chluba, Jens, Krachmalnicoff, Nicoletta, Ranucci, Claudio, Remazeilles, Mathieu, Rizzieri, Arianna
The variation of the physical conditions across the three dimensions of our Galaxy is a major source of complexity for the modelling of the foreground signal facing the cosmic microwave background (CMB). In the present work, we demonstrate that the s
Externí odkaz:
http://arxiv.org/abs/2411.11649
Autor:
Remazeilles, Mathieu, Chluba, Jens
Stacking the public Planck CMB temperature maps (NILC, SMICA, SEVEM, Commander) on galaxy clusters from Planck catalogues reveals substantial residual contamination from thermal Sunyaev-Zeldovich (tSZ) emission. Unexpectedly, stacking "tSZ-free" CMB
Externí odkaz:
http://arxiv.org/abs/2410.02488
Contemporary cosmic microwave background (CMB) experiments typically have observing bands covering the range 20 - 800 GHz. Certain science goals, including the detection of $\mu$-type distortions to the CMB spectrum and the characterization of low-fr
Externí odkaz:
http://arxiv.org/abs/2406.04326
Publikováno v:
JCAP06(2024)018
Upcoming Cosmic Microwave Background (CMB) experiments, aimed at measuring primordial CMB B-modes, require exquisite control of Galactic foreground contamination. Minimum-variance techniques, like the Needlet Internal Linear Combination (NILC), have
Externí odkaz:
http://arxiv.org/abs/2402.17579
Autor:
Zhang, Junzhou, Ghosh, Shamik, Dou, Jiazheng, Liu, Yang, Li, Siyu, Chen, Jiming, Wang, Jiaxin, Zhang, Zhaoxuan, Delabrouille, Jacques, Remazeilles, Mathieu, Feng, Chang, Hu, Bin, Liu, Hao, Santos, Larissa, Zhang, Pengjie, Zhao, Wen, Zhang, Le, Huang, Zhi-Qi, Li, Hong, Kuo, Chao-Lin, Zhang, Xinmin
Publikováno v:
Astrophysical Journal Supplement Series, 274, 26, 2024
We report the test results of several independent foreground-cleaning pipelines used in the Ali CMB Polarization Telescope experiment (AliCPT-1), a high-altitude CMB imager in the Northern hemisphere with thousands of detectors dedicated to the searc
Externí odkaz:
http://arxiv.org/abs/2402.01233
Publikováno v:
A&A 688, A54 (2024)
The Planck space mission has observed the first three rotational lines of emission of Galactic CO. Those maps, however, are either noisy, or contaminated by astrophysical emissions from different origin. We revisit those data products to deliver new
Externí odkaz:
http://arxiv.org/abs/2312.07816
Publikováno v:
EPJ Web of Conferences 293, 00010 (2024)
In 2015, the Planck Collaboration released an all-sky map of the thermal Sunyaev-Zeldovich (SZ) effect, obtained by implementing the Needlet Internal Linear Combination (NILC) method on the Planck PR2 data. The quality of the Planck data has signific
Externí odkaz:
http://arxiv.org/abs/2310.13516
Autor:
Novaes, Camila P., de Mericia, Eduardo J., Abdalla, Filipe B., Wuensche, Carlos A., Santos, Larissa, Delabrouille, Jacques, Remazeilles, Mathieu, Liccardo, Vincenzo
The future 21 cm intensity mapping observations constitute a promising way to trace the matter distribution of the Universe and probe cosmology. Here we assess its capability for cosmological constraints using as a case study the BINGO radio telescop
Externí odkaz:
http://arxiv.org/abs/2309.07868
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 526, Issue 4, December 2023, Pages 5682-5698
Taking advantage of the reduced levels of noise and systematics in the data of the latest Planck release (PR4, also known as NPIPE), we construct a new all-sky Compton-$y$ parameter map (hereafter, $y$-map) of the thermal Sunyaev-Zeldovich (SZ) effec
Externí odkaz:
http://arxiv.org/abs/2305.10193
Autor:
Han, Jiakang, Hu, Bin, Ghosh, Shamik, Li, Siyu, Dou, Jiazheng, Delabrouille, Jacques, Jin, Jing, Li, Hong, Liu, Yang, Remazeilles, Mathieu, Zhao, Wen, Zhang, Pengjie, Li, Zheng-Wei, Liu, Cong-Zhan, Zhang, Yong-jie, Kuo, Chao-Lin, Zhang, Xinmin
Cosmic microwave background radiation (CMB) observations are unavoidably contaminated by emission from various extra-galactic foregrounds, which must be removed to obtain reliable measurements of the cosmological signal. In this paper, we demonstrate
Externí odkaz:
http://arxiv.org/abs/2303.05705