Results 51 to 60 of about 257,498 (300)
Recovering Cosmic Microwave Background Polarization Signals with Machine Learning
The Astrophysical Journal, 2023 Primordial B-mode detection is one of the main goals of current and future cosmic microwave background (CMB) experiments. However, the weak B-mode signal is overshadowed by several Galactic polarized emissions, such as thermal dust emission and ...
Ye-Peng Yan +3 more
doaj +1 more source
Characteristic angular scales in cosmic microwave background radiation [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2006 10 pages, 8 figures Accepted in J.
Katepalli R. Sreenivasan +6 more
openaire +4 more sources
The Atacama Cosmology Telescope: Systematic Transient Search of 3 Day Maps
The Astrophysical Journal, 2023 We conduct a systematic search for transients in 3 yr of data (2017–2019) from the Atacama Cosmology Telescope (ACT). ACT covers 40% of the sky at three bands spanning from 77–277 GHz. Analysis of 3 day mean-subtracted sky maps, which were match filtered
Yaqiong Li +36 more
doaj +1 more source
Measuring the Cosmic Microwave Background Radiation [PDF]
, 2012 The Cosmic Microwave Background Radiation (CMBR) has over the last four decades been measured to increasingly high precision and with that provided information on the early Universe to shape and scrutinize our current cosmological model. Here we provide
Samtleben, D.
core +1 more source
Noncommutative Black-Body Radiation: Implications On Cosmic Microwave Background [PDF]
Europhys.Lett. 75 (2006) 542-547, 2006 Including loop corrections, black-body radiation in noncommutative space is anisotropic. A direct implication of possible space noncommutativity on the Cosmic Microwave Background map is argued.
arxiv +1 more source
Different Explanations for the Cosmic Microwave Background Radiation
, 2021 In this research, the other reasonable explanations for the cosmic microwave background radiation is revealed. Due to the microwave resolution, it very roughly shows the image of galaxies in the universe. Moreover, the intensity measurement on each pixel of the image is the sum of the incident microwaves from different directions, so the microwave ...
openaire +3 more sources
The Astrophysical Journal, 2023 Reliable extraction of cosmological information from observed cosmic microwave background (CMB) maps may require removal of strongly foreground-contaminated regions from the analysis. In this paper, we employ an artificial neural network (ANN) to predict
Srikanta Pal, Pallav Chanda, Rajib Saha
doaj +1 more source
Comment on "On the Origin of the Highest Energy Cosmic Rays" [PDF]
, 1998 We show that the photodisintegration of heavy cosmic ray nuclei with energies above 10^20 eV is dominated by interactions with photons from the cosmic microwave background radiation, rather than from infrared ones.
E. Roulet +4 more
core +2 more sources
Lensing Reconstruction from the Cosmic Microwave Background Polarization with Machine Learning
The Astrophysical Journal, 2023 The lensing effect of the cosmic microwave background (CMB) is a powerful tool for our study of the distribution of matter in the universe. The quadratic estimator (QE) method, which is widely used to reconstruct lensing potential, has been known to be ...
Ye-Peng Yan +4 more
doaj +1 more source
Studying the Effects of Galactic and Extragalactic Foregrounds on Cosmic Microwave Background Observations [PDF]
, 2018 Cosmic microwave background observations have been fundamental in forming the standard model of cosmology. Ongoing and upcoming cosmic microwave background experiments aim to confirm this model and push the boundaries of our knowledge to the very first ...
Abitbol, Maximilian H.
core +2 more sources