The Atacama Cosmology Telescope: a measurement of the Cosmic Microwave Background power spectra at 98 and 150 GHz [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg2 of the 2013–2016 survey, which covers >15000 deg2 at 98 and 150 GHz.
Steve K. Choi +138 more
semanticscholar +1 more source
The Boltzmann equation and Cosmic Microwave Background
Revista de Investigación de Física, 2023 Observations on the anisotropies of the Cosmic Microwave Background (CMB) have become a fundamental tool in Cosmology. We present a brief description of the mformalism necessary to understand the evolution of the anisotropies, and how their power ...
Mississippi Valenzuela
doaj +1 more source
Microwaves Are Everywhere
IEEE Journal of Microwaves, 2021 This article is the first in a continuing series of general interest papers on the applications of microwaves in areas of science and technology that might not be evident to the casual observer.
Peter H. Siegel
doaj +1 more source
New horizons in cosmology with spectral distortions of the cosmic microwave background [PDF]
Experimental astronomy (Print), 2019 This Voyage 2050 paper highlights 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, delivering novel information ...
J. Chluba +29 more
semanticscholar +1 more source
The Cosmic Microwave Background Spectrum from the Full COBE FIRAS Data Set [PDF]
, 1996 We have refined the analysis of the data from the FIRAS (Far-InfraRed Absolute Spectrophotometer) on board the COBE (COsmic Background Explorer). The FIRAS measures the difference between the cosmic microwave background and a precise blackbody spectrum ...
D. Fixsen +5 more
semanticscholar +1 more source
Cosmic microwave background bounds on primordial black holes including dark matter halo accretion [PDF]
, 2020 Even if massive ($10\,M_\odot \lesssim M \lesssim 10^4 M_\odot$) primordial black holes (PBHs) can only account for a small fraction of the dark matter (DM) in the universe, they may still be responsible for a sizable fraction of the coalescence events ...
P. Serpico +3 more
semanticscholar +1 more source
A Line of sight integration approach to cosmic microwave background anisotropies [PDF]
, 1996 We present a new method for calculating linear cosmic microwave background (CMB) anisotropy spectra based on integration over sources along the photon past light cone.
U. Seljak, M. Zaldarriaga
semanticscholar +1 more source
Frequency–Redshift Relation of the Cosmic Microwave Background
Astronomy, 2023 We point out that a modified temperature–redshift relation (T-z relation) of the cosmic microwave background (CMB) cannot be deduced by any observational method that appeals to an a priori thermalisation to the CMB temperature T of the excited states in ...
Ralf Hofmann, Janning Meinert
doaj +1 more source
A Measurement of the Cosmic Microwave Background Lensing Potential and Power Spectrum from 500 deg2 of SPTpol Temperature and Polarization Data [PDF]
Astrophysical Journal, 2019 We present a measurement of the cosmic microwave background lensing potential using 500 deg2 of 150 GHz data from the SPTpol receiver on the South Pole Telescope.
W. L. K. Wu +70 more
semanticscholar +1 more source
Cosmic Needles versus Cosmic Microwave Background Radiation [PDF]
, 2002 It has been suggested by a number of authors that the 2.7K cosmic microwave background (CMB) radiation might have arisen from the radiation from Population III objects thermalized by conducting cosmic graphite/iron needle-shaped dust.
Aguirre A. N. +16 more
core +2 more sources