Zobrazeno 1 - 10
of 265
pro vyhledávání: '"DELABROUILLE, JACQUES"'
Publikováno v:
A&A 691, A110 (2024)
Context. The extreme precision and accuracy of forthcoming observations of CMB temperature and polarization anisotropies, aiming to detect the tiny signatures of primordial gravitational waves or of light relic particles beyond the standard three lig
Externí odkaz:
http://arxiv.org/abs/2407.10365
Autor:
Kogut, Alan, Switzer, Eric, Fixsen, Dale, Aghanim, Nabila, Chluba, Jens, Chuss, Dave, Delabrouille, Jacques, Dvorkin, Cora, Hensley, Brandon, Hill, Colin, Maffei, Bruno, Pullen, Anthony, Rotti, Aditya, Sabyr, Alina, Thiele, Leander, Wollack, Ed, Zelko, Ioana
The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission concept to measure the energy spectrum and linear polarization of the cosmic microwave background (CMB). A single cryogenic Fourier transform spectrometer compares the sky to an e
Externí odkaz:
http://arxiv.org/abs/2405.20403
Autor:
Delabrouille, Jacques
Publikováno v:
A&A 689, A353 (2024)
Observations of cosmic microwave background polarisation, essential for probing a potential phase of inflation in the early universe, suffer from contamination by polarised emission from the Galactic interstellar medium. This work combines existing o
Externí odkaz:
http://arxiv.org/abs/2403.18123
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
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
Autor:
Kogut, A., Fixsen, Dale, Aghanim, Nabila, Chluba, Jens, Chuss, David T., Delabrouille, Jacques, Hensley, Brandon S., Hill, J. Colin, Maffei, Bruno, Pullen, Anthony R., Rotti, Aditya, Switzer, Eric R., Wollack, Edward J., Zelko, Ioana
The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission concept to measure the spectrum and polarization of the cosmic microwave background. Cosmological signals are small compared to the instantaneous instrument noise, requiring stric
Externí odkaz:
http://arxiv.org/abs/2304.00091
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
Autor:
Aurlien, Ragnhild, Remazeilles, Mathieu, Belkner, Sebastian, Carron, Julien, Delabrouille, Jacques, Eriksen, Hans Kristian, Flauger, Raphael, Fuskeland, Unni, Galloway, Mathew, Gorski, Krzysztof M., Hanany, Shaul, Hensley, Brandon S., Hill, J. Colin, Lawrence, Charles R., van Engelen, Alexander, Wehus, Ingunn Kathrine
Publikováno v:
JCAP06(2023)034
PICO is a concept for a NASA probe-scale mission aiming to detect or constrain the tensor to scalar ratio $r$, a parameter that quantifies the amplitude of inflationary gravity waves. We carry out map-based component separation on simulations with fi
Externí odkaz:
http://arxiv.org/abs/2211.14342
Autor:
Barron, Darcy R., Bender, Amy N., Birdwell, Ian E., Carlstrom, John E., Delabrouille, Jacques, Guns, Sam, Kovac, John, Lawrence, Charles R., Paine, Scott, Whitehorn, Nathan
CMB-S4 will map the cosmic microwave background to unprecedented precision, while simultaneously surveying the millimeter-wave time-domain sky, in order to advance our understanding of cosmology and the universe. CMB-S4 will observe from two sites, t
Externí odkaz:
http://arxiv.org/abs/2207.13204