Results 41 to 50 of about 5,544,231 (205)

Impact of Interacting Parameters on Dark Matter in an Interacting Dark Energy Model

The Astrophysical Journal Supplement Series
This paper investigates a dark energy model within the Friedmann–Lemaître–Robertson–Walker cosmological framework, considering both interacting and noninteracting scenarios.
Himanshu Chaudhary, Ritika Nagpal, S. K. J. Pacif, G. Mustafa   +3 more
doaj   +1 more source

Classification of Precipitable Water Vapor Regimes Revealed by Clustering of GNSS Radio Occultation and ERA5 Data

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Precipitable water vapor (PWV) is an essential parameter for the study of weather and climate behavior. This work presents a novel regional classification of PWV regimes based on clustering techniques applied to Global Navigation Satellite System radio occultation‐derived and ERA5 reanalysis data with and without seasonal removal.
P. Alexander, A. de la Torre
wiley   +1 more source

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, Guo-Jian Wang, Si-Yu Li, Yang-Jie Yan, Jun-Qing Xia   +4 more
doaj   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

Advanced Physics Research, Volume 5, Issue 7, July 2026.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang, Yong‐shuai Li, Jin‐hui Chen   +2 more
wiley   +1 more source

Nearly Full-sky Low-multipole Cosmic Microwave Background Temperature Anisotropy. II. Angular Power Spectra and Likelihood

The Astrophysical Journal
We present a cosmic microwave background (CMB) temperature power spectrum measurement at large angular scales from WMAP and Planck maps that were cleaned of foregrounds using a template-based approach described in the first paper of this series.
Hayley C. Nofi, Graeme E. Addison, Charles L. Bennett, Laura Herold, J. L. Weiland   +4 more
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

Nearly Full-sky Low-multipole Cosmic Microwave Background Temperature Anisotropy. I. Foreground Cleaned Maps

The Astrophysical Journal
Studies of cosmic microwave background (CMB) are often limited by foreground contamination. Foreground cleaning is performed in either harmonic or pixel space after data cuts have excluded sky areas of strong contamination.
Hayley C. Nofi, Graeme E. Addison, Charles L. Bennett, Laura Herold, J. L. Weiland   +4 more
doaj   +1 more source

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, Emily Biermann, Sigurd Naess, Simone Aiola, Rui An, Nicholas Battaglia, Tanay Bhandarkar, Erminia Calabrese, Steve K. Choi, Kevin T. Crowley, Mark Devlin, Cody J. Duell, Shannon M. Duff, Jo Dunkley, Rolando Dünner, Patricio A. Gallardo, Yilun Guan, Carlos Hervías-Caimapo, Adam D. Hincks, Johannes Hubmayr, Kevin M. Huffenberger, John P. Hughes, Arthur Kosowsky, Thibaut Louis, Maya Mallaby-Kay, Jeff McMahon, Federico Nati, Michael D. Niemack, John Orlowski-Scherer, Lyman Page, Maria Salatino, Cristóbal Sifón, Suzanne T. Staggs, Cristian Vargas, Eve M. Vavagiakis, Yuhan Wang, Edward J. Wollack   +36 more
doaj   +1 more source

Large-scale polarization of the cosmic microwave background radiation

Physical Review D, 1995
14 pages, LaTeX style, IP-ASTP-08-93, 2 revised figures available upon ...
Ng, Ka Lok, Ng, Kin-Wang
openaire   +3 more sources

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