Results 21 to 30 of about 3,768 (214)

Microwave Kinetic Inductance Detectors [PDF]

, 2005
Low temperature detectors have been a subject of intense interest to the scientific community over the last decade. These detectors work at very low temperatures, often well below 1 Kelvin, to minimize the noise in the measurement of photons.
Mazin, Benjamin A.
core   +1 more source

CMB (Cosmic Microwave Background) [PDF]

, 2023
This thesis, titled CMB (Cosmic Microwave Background), is a 15-minute musical work for a chamber sextet with live electronics and interactive video. It is a quasi-spectral work that utilizes sonifications and data from the Cosmic Microwave Background ...
Ducharme, Michael James Jeffery
core  

Mitigating Cosmic Microwave Background Shadow Degradation of Tensor-to-scalar Ratio Measurements through Map-based Studies

The Astrophysical Journal Letters, 2023
It has been pointed out that the spurious cosmic microwave background (CMB) B -mode polarization signals caused by the absorption of the CMB monopole component due to the Galactic interstellar matter, called the CMB shadow, degrade the accuracy of ...
Tamaki Murokoshi, Yuji Chinone, Masashi Nashimoto, Kiyotomo Ichiki, Makoto Hattori   +4 more
doaj   +1 more source

On the (Higher Multipoles) Variance Asymmetry in the Cosmic Microwave Background

The Astrophysical Journal
We have studied the cosmic microwave background (CMB) map looking for features beyond cosmological isotropy. We began by tiling the CMB variance maps (which are produced by different smoothing scales) with stripes of different sizes along the most ...
MohammadHossein Jamshidi, Abdolali Banihashemi, Nima Khosravi   +2 more
doaj   +1 more source

Neutrinos and Big Bang Nucleosynthesis

Advances in High Energy Physics, 2012
According to the standard models of particle physics and cosmology, there should be a background of cosmic neutrinos in the present Universe, similar to the cosmic microwave photon background.
Gary Steigman
doaj   +1 more source

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

River Research and Applications, Volume 42, Issue 6, Page 1115-1141, July 2026.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl, Shayla Triantafillou, Alex Thornton‐Dunwoody, Connor Mertz, Katie Larkin, William Keenan, Steven Griffin, Dylan Davis, Lindsey Blehm   +8 more
wiley   +1 more source

A Measurement of Atmospheric Circular Polarization with POLARBEAR

The Astrophysical Journal
At millimeter wavelengths, the atmospheric emission is circularly polarized owing to the Zeeman splitting of molecular oxygen by the Earth's magnetic field.
Takuro Fujino, Satoru Takakura, Shahed Shayan Arani, Darcy Barron, Carlo Baccigalupi, Yuji Chinone, Josquin Errard, Giulio Fabbian, Chang Feng, Nils W. Halverson, Masaya Hasegawa, Masashi Hazumi, Oliver Jeong, Daisuke Kaneko, Brian Keating, Akito Kusaka, Adrian Lee, Tomotake Matsumura, Lucio Piccirillo, Christian L. Reichardt, Kana Sakaguri, Praween Siritanasak, Kyohei Yamada   +22 more
doaj   +1 more source

Estimation of the Full-sky Power Spectrum between Intermediate and Large Angular Scales from Partial-sky CMB Anisotropies Using an Artificial Neural Network

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

Statistical Study of Geoeffective Fe XV 28.4 nm Emission Bursts and Their Influence on Ionospheric Total Electron Content During the Late Phase of Solar Flares

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract Recent studies have demonstrated that warm coronal emissions during the extreme ultraviolet late phase (ELP) of X‐class solar flares can be sufficiently strong to also affect electron density in the Earth's ionosphere. The Fe XV 28.4 nm line was identified as one of the most geoeffective emissions produced during the ELP.
S. Z. Bekker, A. N. O’Hare, H. J. Greatorex, L. A. Hayes, N. Janitzek, G. S. Kerr, R. O. Milligan, L. Qian, K. Watanabe   +8 more
wiley   +1 more source

The Cosmic Microwave Background Radiation (CMBR) Anisotropy [PDF]

, 2019
In this chapter we will describe the Cosmic Microwave Background Radiation and its anisotropy. After describing the CMBR kinematics, we will see how primordial perturbations, in particular curvature perturbations, that were already observed, are ...
Horaţiu Năstase, Năstase, Horaţiu [UNESP]   +1 more
core   +1 more source