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In addition to its spectrum and temperature anisotropy, the 2.7K Cosmic Microwave Background is also expected to exhibit a low level of polarization. The spatial power spectrum of the polarization can provide details about the formation of…

天体物理学 · 物理学 2009-10-30 Brian Keating , Peter Timbie , Alexander Polnarev , Julia Steinberger

We discuss how one can reconstruct the thermal history of the Universe by combining cosmic microwave background (CMB) measurements and gravitational wave (GW) direct detection experiments. Assuming various expansion eras to take place after…

宇宙学与河外天体物理 · 物理学 2013-06-13 Sachiko Kuroyanagi , Christophe Ringeval , Tomo Takahashi

Voyage 2050 White Paper highlighting the unique science opportunities using spectral distortions of the cosmic microwave background (CMB). CMB spectral distortions probe many processes throughout the history of the Universe. Precision…

The cosmic background (CB) radiation, encompassing the sum of emission from all sources outside our own Milky Way galaxy across the entire electromagnetic spectrum, is a fundamental phenomenon in observational cosmology. Many experiments…

宇宙学与河外天体物理 · 物理学 2018-05-09 Ryley Hill , Kiyoshi W. Masui , Douglas Scott

The study of cosmic birefringence through Cosmic Microwave Background (CMB) experiments is a key research area in cosmology and particle physics, providing a critical test for Lorentz and CPT symmetries. This paper focuses on an upcoming…

宇宙学与河外天体物理 · 物理学 2025-04-18 Yiwei Zhong , Hongbo Cai , Si-Yu Li , Yang Liu , Mingzhe Li , Wenjuan Fang

The intergalactic medium is expected to be at its coldest point before the formation of the first stars in the universe. Motivated by recent results from the EDGES experiment, we revisit the standard calculation of the kinetic temperature…

宇宙学与河外天体物理 · 物理学 2018-11-21 Tejaswi Venumadhav , Liang Dai , Alexander Kaurov , Matias Zaldarriaga

Anomalies in the cosmic microwave background (CMB) refer to features that have been observed, mostly at large angular scales, and which show some tension with the statistical predictions of the standard $\Lambda$CDM model. In this work, we…

广义相对论与量子宇宙学 · 物理学 2021-05-28 Ivan Agullo , Dimitrios Kranas , V. Sreenath

The cosmological recombination radiation (CRR) is one of the inevitable $\Lambda$CDM spectral distortions of the cosmic microwave background (CMB). While it shows a rich spectral structure across dm-mm wavelengths, it is also one of the…

宇宙学与河外天体物理 · 物理学 2020-08-12 Luke Hart , Aditya Rotti , Jens Chluba

Departures of the Cosmic Microwave Background (CMB) frequency spectrum from a blackbody - commonly referred to as spectral distortions - encode information about the thermal history of the early Universe (redshift z < few x 10^6). While the…

宇宙学与河外天体物理 · 物理学 2015-06-16 Jens Chluba , Donghui Jeong

The next generation low-frequency radio telescopes may probe cosmological models by means of observations of the cosmic microwave background (CMB). I discuss the prospects for observations of CMB imprints - recombination lines from the…

天体物理学 · 物理学 2007-05-23 R. Subrahmanyan

The changes in the cosmic microwave background (CMB) spectrum seen as an increase of temperature due to a strong magnetic field are determined and their influence on the polarization of the radiation is exhibited. The effect is due to the…

宇宙学与河外天体物理 · 物理学 2014-12-24 Zofia Bialynicka-Birula , Iwo Bialynicki-Birula

We intend to show how fundamental science is drawn from the patterns in the temperature and polarization fields of the cosmic microwave background (CMB) radiation, and thus to motivate the field of CMB research. We discuss the field's…

天体物理学 · 物理学 2008-11-26 Dorothea Samtleben , Suzanne Staggs , Bruce Winstein

The B-Mode of the Cosmic Microwave Background Polarization (CMBP) promises to detect the gravitational wave background left by Inflation and explore this very early period of the Universe. In spite of its importance, however, the cosmic…

天体物理学 · 物理学 2007-05-23 E. Carretti

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

In Luparello et al. 2023, a new and hitherto unknown CMB foreground was detected. A systematic decrease in Cosmic Microwave Background (CMB) temperatures around nearby large spiral galaxies points to an unknown interaction with CMB photons…

宇宙学与河外天体物理 · 物理学 2026-03-19 Frode K. Hansen , Ezequiel F. Boero , Heliana E. Luparello , Diego Garcia Lambas

Context: The cosmic microwave background (CMB) spectrum probes physical processes and astrophysical phenomena occurring at various epochs of the Universe evolution. Current and future CMB absolute temperature experiments are aimed to the…

宇宙学与河外天体物理 · 物理学 2015-05-13 Pietro Procopio , Carlo Burigana

Fundamental information about the Universe is encoded in anisotropies of the Cosmic Microwave Background (CMB) radiation. To make full use of this information, an experiment must image the entire sky with the angular resolution,…

We exploit the complementarity among supersymmetry, inflation, axions, Big Bang Nucleosynthesis (BBN) and Cosmic Microwave Background Radiation (CMB) to constrain supersymmetric axion models in the light of the recent Planck and BICEP…

高能物理 - 唯象学 · 物理学 2014-12-17 Farinaldo S. Queiroz , Kuver Sinha , William Wester

We analyze the spectrum of cosmic microwave background (CMB) anisotropies in the timescape cosmology: a potentially viable alternative to homogeneous isotropic cosmologies without dark energy. We exploit the fact that the timescape…

宇宙学与河外天体物理 · 物理学 2015-03-18 M. Ahsan Nazer , David L. Wiltshire

We develop the first algorithm able to jointly compute the maximum {\it a posteriori} estimate of the Cosmic Microwave Background (CMB) temperature and polarization fields, the gravitational potential by which they are lensed, and…

宇宙学与河外天体物理 · 物理学 2019-07-17 Marius Millea , Ethan Anderes , Benjamin D. Wandelt
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