Results 91 to 100 of about 63,492 (218)

Testing space-time non-commutativity with TianQin

open access: yesEuropean Physical Journal C: Particles and Fields
The direct detection of gravitational waves offers a powerful tool to explore the nature of gravity and the structure of space-time. This paper focuses on the capabilities of space-based gravitational wave detectors in testing space-time non ...
Zeyu Huang   +3 more
doaj   +1 more source

On the Origins of Mercury's Sodium Exospheric Cold Poles Enhancement: A Multiscale Exosphere Global Model

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Mercury's exosphere is sustained by the continuous ejection of atoms from its surface, driven by solar wind, micro‐meteoroid impacts, and surface heating. Due to its 3:2 spin‐orbit resonance, some longitudes experience greater solar exposure, creating temperature variations from ∼90 to 700 K.
S. Verkercke   +5 more
wiley   +1 more source

Decline of the Current Quadrupole Moment during the Merger Phase of Binary Black Hole Coalescence

open access: yesUniverse, 2019
Utilizing the tools of tendex and vortex, we study the highly dynamic plunge and merger phases of several π -symmetric binary black hole coalescences. In particular, we observe a decline of the strength of the current quadrupole moment compared
Fan Zhang
doaj   +1 more source

The Importance of Seasonality in Seagrass Properties for Coastal Hydro‐Morphodynamics—A Case Study in a Wadden Sea Basin

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 11, November 2025.
Abstract Seagrass meadows fulfill many essential ecological functions, of which an important one is to stabilize sediment. Therefore, they are perceived as a nature‐based addition or alternative to conventional rigid coastal protection. The impact of seagrass meadows depends on their morphology, such as canopy height, shoot density, and spatial extent.
V. Mohr, W. Zhang, T. Dolch, C. Schrum
wiley   +1 more source

No Evidence for a Dip in the Binary Black Hole Mass Spectrum

open access: yesThe Astrophysical Journal
Stellar models indicate that the core compactness of a star, which is a common proxy for its explodability in a supernova, does not increase monotonically with the star’s mass.
Christian Adamcewicz   +3 more
doaj   +1 more source

Do Both Black Holes Spin in Merging Binaries? Evidence from GWTC-4 and Astrophysical Implications

open access: yesThe Astrophysical Journal
Angular momentum transport in high-mass stars is commonly modeled by extrapolating the behavior of better-observed low-mass stars. According to the conventional picture, the cores of most black hole progenitors lose almost all of their angular momentum ...
Christian Adamcewicz   +3 more
doaj   +1 more source

Analysis of the effect of coupling coefficients on the slope of PDH-locked frequency discriminator

open access: yesAIP Advances
The effects of the coupling coefficients on the reflected field and the error signal under various misalignments and near-axis conditions are analyzed, and some basic features of the error signal are investigated.
Qicheng Sun   +9 more
doaj   +1 more source

Data Transmission Analysis and Communication Scheme Design for TianQin Mission

open access: yesIEEE Access
Compared with ground-based gravitational wave detection, space-based gravitational wave detection has become a research hotspot because of its abundant wave sources.
Zhaoxiang Yi, Lin Sun, Meng Jiang
doaj   +1 more source

Inferring Jet Physics from Neutron Star–Black Hole Mergers with Gravitational Waves

open access: yesThe Astrophysical Journal
Neutron star–black hole (NSBH) mergers that undergo tidal disruption may launch jets that could power a gamma-ray burst (GRB). We use a population of simulated NSBH systems to measure jet parameters from the gravitational waves emitted by these systems ...
Teagan A. Clarke   +2 more
doaj   +1 more source

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