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The quest for primordial gravitational waves enclosed in the Cosmic Microwave Background (CMB) polarization B-modes signal motivates the development of a new generation of high sensitive experiments (e.g. CMB-S4, LiteBIRD) that would allow…

The search for primordial gravitational waves in the Cosmic Microwave Background (CMB) will soon be limited by our ability to remove the lensing contamination to $B$-mode polarization. The often-used quadratic estimator for lensing is known…

宇宙学与河外天体物理 · 物理学 2021-01-04 Marius Millea , Ethan Anderes , Benjamin D. Wandelt

Circular polarization in the cosmic microwave background (CMB) offers a promising probe of the parity-violating physics of the early universe. In this paper, we propose a novel method to constrain the primordial circular polarization of…

宇宙学与河外天体物理 · 物理学 2025-06-24 Ashu Kushwaha , Rajeev Kumar Jain

Planck's Cosmic Microwave Background temperature and polarization observations are the premier dataset for constraining cosmological models. Cosmic variance limited temperature at large and intermediate scales today dominates the…

宇宙学与河外天体物理 · 物理学 2023-01-18 Adrien La Posta , Umberto Natale , Erminia Calabrese , Xavier Garrido , Thibaut Louis

The compelling science case for the observation of B-mode polarization in the cosmic microwave background (CMB) is driving the CMB community to expand the observed sky fraction, either by extending survey sizes or by deploying receivers to…

天体物理仪器与方法 · 物理学 2018-08-07 D. Barkats , R. Bowens-Rubin , W. H. Clay , T. Culp , R. Hills , J. M. Kovac , N. A. Larsen , S. Paine , C. D. Sheehy , A. G. Vieregg

The Cosmic Microwave Background (CMB) radiation offers a unique window into the early Universe, facilitating precise examinations of fundamental cosmological theories. However, the quest for detecting B-modes in the CMB, predicted by…

In this paper, we will give a general introduction to the project of Ali CMB Polarization Telescope (AliCPT), which is a Sino-US joint project led by the Institute of High Energy Physics (IHEP) and has involved many different institutes in…

The observation of the polarised emission from the Cosmic Microwave Background (CMB) from future ground-based and satellite-borne experiments holds the promise of indirectly detecting the elusive signal from primordial tensor fluctuations…

宇宙学与河外天体物理 · 物理学 2023-03-22 Susanna Azzoni , David Alonso , Maximilian H. Abitbol , Josquin Errard , Nicoletta Krachmalnicoff

I describe briefly the Cosmic Microwave Background (hereafter CMB) physics which explains why high accuracy observations of its spatial structure are a unique observational tool both for the determination of the global cosmological…

天体物理学 · 物理学 2007-05-23 Francois R. Bouchet

Polarization of the cosmic microwave background (CMB) can help probe the fundamental physics behind cosmic inflation via the measurement of primordial $B$ modes. As this requires exquisite control over instrumental systematics, some…

宇宙学与河外天体物理 · 物理学 2024-05-06 Marta Monelli , Eiichiro Komatsu , Tommaso Ghigna , Tomotake Matsumura , Giampaolo Pisano , Ryota Takaku

Matter inhomogeneities along the line of sight deflect the cosmic microwave background (CMB) photons originating at the last scattering surface at redshift $z \sim 1100$. These distortions modify the pattern of CMB polarization. We identify…

天体物理学 · 物理学 2009-10-31 Jacek Guzik , Uros Seljak , Matias Zaldarriaga

Measurements of the cosmic microwave background (CMB) allow high precision observation of the cosmic plasma at redshift z~1100. After the success of the NASA satellite COBE, that in 1992 provided the first detection of the CMB anisotropy,…

We forecast the constraints on the parameters of neutrino physics with the constructions of Cosmic Microwave Background (CMB) temperature, E-mode polarization and lensing spectra for the ground-based Ali Cosmic Microwave Background…

宇宙学与河外天体物理 · 物理学 2021-12-21 Dongdong Zhang , Jiarui Li , Jiaqi Yang , Yufei Zhang , Yi-Fu Cai , Wenjuan Fang , Chang Feng

A tremendous international effort is currently dedicated to observing the so-called primordial B modes of the Cosmic Microwave Background (CMB) polarisation. If measured, this faint signal imprinted by the primordial gravitational wave…

宇宙学与河外天体物理 · 物理学 2020-02-27 J. Aumont , A. Ritacco , J. F. Macías-Pérez , N. Ponthieu , A. Mangilli

The detection of the Cosmic Microwave Background Radiation (CMB) was one of the most important cosmological discoveries of the last century. With the development of interferometric gravitational wave detectors, we may be in a position to…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Vincent Corbin , Neil J. Cornish

[Abridged] Recent results from the BICEP, Keck Array and Planck Collaborations demonstrate that Galactic foregrounds are an unavoidable obstacle in the search for evidence of inflationary gravitational waves in the cosmic microwave…

宇宙学与河外天体物理 · 物理学 2016-04-07 Josquin Errard , Stephen M. Feeney , Hiranya V. Peiris , Andrew H. Jaffe

One of the main obstacles for extracting the Cosmic Microwave Background (CMB) from mm/submm observations is the pollution from the main Galactic components: synchrotron, free-free and thermal dust emission. The feasibility of using simple…

宇宙学与河外天体物理 · 物理学 2016-07-20 H. U. Nørgaard-Nielsen

We estimate the dust polarized emission in our galaxy at high galactic latitudes, which is the dominant foreground for measuring CMB polarization using the high frequency instrument (HFI) aboard Planck surveyor. We compare it with the level…

天体物理学 · 物理学 2007-05-23 Shiv K. Sethi , Simon Prunet , F. R. Bouchet

One of the major targets for next-generation cosmic microwave background (CMB) experiments is the detection of the primordial B-mode signal. Planning is under way for Stage-IV experiments that are projected to have instrumental noise small…

宇宙学与河外天体物理 · 物理学 2018-05-23 Zhen Pan , Ethan Anderes , Lloyd Knox

Distortions of Cosmic Microwave Background (CMB) temperature and polarization maps caused by gravitational lensing, observable with high angular resolution and high sensitivity, can be used to measure the neutrino mass. Assuming two…

天体物理学 · 物理学 2010-04-22 Manoj Kaplinghat , Lloyd Knox , Yong-Seon Song