Results 71 to 80 of about 3,768 (214)

Testing the Weak Cosmic Censorship Conjecture via Test Particle–Induced Overcharging/Overspinning of Kerr–Newman–Modified Gravity Black Hole

open access: yesAdvances in Astronomy, Volume 2026, Issue 1, 2026.
We examine the weak cosmic censorship conjecture (WCCC) violation by throwing a charged and rotating test particle into a Kerr–Newman–modified gravity black hole (KN–MOG BH). The result depends on several factors, such as the relative sign of the particle’s charge and its direction of rotation with respect to black hole (BH).
Waqar Ahmad   +2 more
wiley   +1 more source

Revisiting the A L Lensing Anomaly in Planck 2018 Temperature Data

open access: yesThe Astrophysical Journal
We revisit the lensing anomaly in the Planck 2018 temperature (TT) data and examine its robustness to frequency selection and additional sky masking. Our main findings are as follows.
Graeme E. Addison   +4 more
doaj   +1 more source

Stratosphere‐Troposphere Exchange of Water Vapor Based on Observations and Reanalyses

open access: yesGeophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract This study provides the first estimates of the global stratosphere‐troposphere exchange (STE) of water vapor (H2O) using the lowermost stratosphere mass budget approach. Observationally derived H2O fluxes across the isentropic surface fitted to the tropical tropopause are −1.16 ± 0.20 Pg/yr in the Northern Hemisphere extratropics, −0.94 ± 0.18 
Cong Dong, Qiang Fu
wiley   +1 more source

Cosmic necklaces in string theory and field theory [PDF]

open access: yes, 2010
PhDIn this thesis we investigate astrophysical phenomena which arise in models with compact extra dimensions, focussing on the cosmological consequences of strings which wrap cycles in the internal space. Embedding our strings in the Klebanov-Strassler
Lake, Matthew James
core  

The Impact of Population III.1 Flash Reionization for Cosmic Microwave Background Polarization and Thomson Scattering Optical Depth

open access: yesThe Astrophysical Journal Letters
The Population III.1 theory for supermassive black hole (SMBH) formation predicts a very early ( z  ∼ 20–25) transient phase, the “Pop III.1 Flash,” of cosmic reionization powered by supermassive stars that are SMBH progenitors. The Universe then quickly
Jonathan C. Tan, Eiichiro Komatsu
doaj   +1 more source

An Accelerated Discrete Ordinate Method (ADOM) Developed for Scalar Radiative Transfer by Merging Adjacent Clear‐Sky Atmospheric Layers: Forward and Jacobians Derivation

open access: yesJournal of Advances in Modeling Earth Systems, Volume 17, Issue 12, December 2025.
Abstract In this study, an Accelerated Discrete Ordinate Method (ADOM) is proposed to enhance the computational efficiency of multi‐layer radiative transfer (RT) simulations while maintaining a high accuracy. ADOM applies the Discrete Ordinate Method (DOM) only in scattering layers, while the radiances for the adjacent clear‐sky layers are merged and ...
Yi‐Ning Shi, Fuzhong Weng
wiley   +1 more source

James Buttle Review: Dynamic Water Storage Shapes Critical Zone Function in Snow‐Dominated Mountain Watersheds

open access: yesHydrological Processes, Volume 39, Issue 11, November 2025.
Dynamic storage in snow‐dominated mountain systems includes snowpacks, plant accessible water (PAW), groundwater and surface. We summarise recent advances in measuring and modelling these dynamic stores. Our review highlights spatial heterogeneity and time evolution of capacity and filling/depletion of these stores and discusses implications for ...
Christina Tague   +12 more
wiley   +1 more source

22. Cosmic background radiation 1 22. COSMIC BACKGROUND RADIATION [PDF]

open access: yes, 2008
The observed cosmic microwave background (CMB) radiation provides strong evidence for the hot big bang. The success of primordial nucleosynthesis calculations (see Sec.

core  

The Cosmic Microwave Background Optical Depth Constrains the Duration of Reionization

open access: yesThe Astrophysical Journal Letters
Recently, it was pointed out that invoking a large value of the cosmic microwave background (CMB) optical depth, τ _CMB  = 0.09, could help resolve tensions between Dark Energy Survey Instrument DR2 baryon acoustic oscillation data and the CMB.
Christopher Cain   +5 more
doaj   +1 more source

Progress in fiber‐shaped zinc batteries: From structure, manufacturing, optimization to application

open access: yesInfoMat, Volume 7, Issue 10, October 2025.
In this review, four aspects of fiber‐shaped zinc batteries (FZBs) are systematically summarized: structure, manufacturing, optimization, and application. The structure of FZBs is first presented, encompassing common electrodes, electrolytes, current collectors, encapsulating materials, and various electrode assembly architectures.
Chongyang Luo   +9 more
wiley   +1 more source

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