Results 21 to 30 of about 277,653 (299)
Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey [PDF]
Progress of Theoretical and Experimental Physics, 2022 LiteBIRD the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics.
LiteBIRD Collaboration E. Allys +185 more
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Measurement of background radiation in Jhapa, Ilam, Panchthar, and Taplejung districts of Nepal
Bibechana, 2023 In this study, we investigated the levels of background radiation in different locations across the Eastern part of Koshi province, specifically in Taplejung, Panchthar, Ilam, and Jhapa.
Arun Kumar Shrestha +6 more
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Gravitational wave memory produced by cosmic background radiation
Physics Letters B, 2023 It is well known that energy fluxes will produce gravitational wave memory. The gravitational wave memory produced by background including cosmic microwave background (CMB), cosmic neutrino background (CνB), and gravitational wave background is ...
Zhoujian Cao, Xiaokai He, Zhi-Chao Zhao
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Revisiting cosmic microwave background radiation using blackbody radiation inversion
Scientific Reports, 2021 Blackbody radiation inversion is a mathematical process for the determination of probability distribution of temperature from measured radiated power spectrum.
Koustav Konar, Kingshuk Bose, R. K. Paul
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The cosmic microwave background radiation [PDF]
Physics Reports, 2000 We summarize the theoretical and observational status of the study of the Cosmic Microwave Background radiation. Its thermodynamic spectrum is a robust prediction of the Hot Big Bang cosmology and has been confirmed observationally. There are now 76 observations of Cosmic Microwave Background anisotropy, which we present in a table with references.
Eric Gawiser, Joseph Silk, Joseph Silk
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Stringent Limit on Primordial Magnetic Fields from the Cosmic Microwave Background Radiation. [PDF]
Physical Review Letters, 2018 Primordial magnetic fields (PMFs), being present before the epoch of cosmic recombination, induce small-scale baryonic density fluctuations. These inhomogeneities lead to an inhomogeneous recombination process that alters the peaks and heights of the ...
K. Jedamzik, A. Saveliev
semanticscholar +1 more source
Measurements of the cosmic background radiation [PDF]
Annual Review of Astronomy and Astrophysics, 1980 Measurements of the attributes of the 2.7-K microwave background radiation (CBR) are reviewed, with emphasis on the analytic phase of CBR studies. Methods for the direct measurement of the CBR spectrum are discussed; attention is given to receivers, antennas, absolute receiver calibration, atmospheric emission and absorption, the galactic background ...
R. Weiss
semanticscholar +3 more sources
The Astrophysical Journal, 2023 Direct photometric measurements of the cosmic optical background (COB) provide an important point of comparison to both other measurement methodologies and models of cosmic structure formation, and permit a cosmic consistency test with the potential to ...
Teresa Symons +4 more
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Axion Like Particles and Recent Observations of the Cosmic Infrared Background Radiation [PDF]
, 2017 The CIBER collaboration released their first observational data of the Cosmic IR background (CIB) radiation, which has significant excesses at around the wavelength $\sim$ 1 $\mu$m compared to theoretically-inferred values.
K. Kohri, H. Kodama
semanticscholar +1 more source
COSMIC TACHYON BACKGROUND RADIATION [PDF]
International Journal of Modern Physics A, 1999 The equilibrium statistical mechanics of a background radiation of superluminal particles is investigated, based on a vectorial wave equation for tachyons of the Proca type. The partition function, the spectral energy density, and the various thermodynamic variables of an ideal Bose gas of tachyons in an open Robertson–Walker cosmology are derived ...
Roman Tomaschitz, Roman Tomaschitz
openaire +3 more sources