1345 papers
The AIDA-TNG project utilizes cosmological simulations to demonstrate that alternative dark matter models, specifically warm and self-interacting variants, significantly alter halo abundance, radial distribution, and clustering properties, with small-scale clustering emerging as a key discriminator for future observational comparisons.
This paper introduces an automated density-based clustering method to quantify sunspot group nesting across 151 years of observations, revealing that approximately 60% of groups emerge in spatial-temporal nests, with nesting frequency and inter-nest spacing strongly correlated to solar activity levels.
This study reports the rare detection of a massive, high-redshift neutral hydrogen outflow driven by jet-gas interaction 47 kpc beyond the host galaxy of the radio galaxy 0731+438, providing new insights into the synergistic feedback mechanisms between AGN jets and radiation at cosmic noon.
This paper demonstrates that the POLAR-2 mission's High-energy Polarimetry Detector (HPD) will achieve unprecedented time- and energy-resolved linear polarization measurements of prompt gamma-ray bursts, enabling the distinction between competing emission mechanisms and the precise characterization of outflow properties through a novel maximum likelihood fitting technique applied to synthetic sources.
This paper presents a study of cosmic ray composition in the 2–12.5 EeV energy range using muon correlation data from the Yakutsk EAS array (1974–2018), confirming the existence of four distinct groups of primary particles with different origins.
This study analyzes resolved H maps of 685 galaxies around the Virgo cluster to characterize star-forming clumps, revealing that clump counts follow a fractal power-law relation with distance and finding that filament galaxies exhibit a slightly higher number of peripheral clumps compared to non-filament galaxies, though no conclusive differences in clump size distributions were detected.
This study utilizes the COSMOS2020 dataset to demonstrate that the fractal dimension of the cosmic web varies systematically with galaxy color and redshift, revealing a distinct hierarchy where blue galaxies exhibit the highest dimensionality and green galaxies the lowest, thereby establishing fractal dimension as a sensitive diagnostic for mapping large-scale structure evolution.
This study utilizes multi-wavelength data from JWST, ALMA, and Gemini to reveal that the intermediate-mass black hole in the dwarf Seyfert galaxy NGC 4395 drives a stratified, biconical outflow where cold molecular gas dominates the mass loss and kinetic impact on the ISM, while higher ionisation gas is accelerated more efficiently closer to the AGN.
This paper investigates the shadows of rotating traversable wormholes in the Teo class, demonstrating that a variable redshift parameter induces a universal critical value leading to cuspy structures and revealing four distinct shadow morphologies that could serve as observational diagnostics for compact objects.
This paper presents theoretical and experimental evidence for a new phase of matter called multimodal superfluidity in neutron-rich systems, characterized by the coexistence of s-wave pairs, p-wave entangled double pairs, and quartets, which is predicted to occur in various fermionic systems and has significant implications for the structure and dynamics of neutron star crusts.
This paper extends the Bemfica-Disconzi-Noronha-Kovtun (BDNK) first-order dissipative relativistic hydrodynamics model to include a full first-order charge current with out-of-equilibrium corrections, demonstrating that this inclusion ensures a strongly hyperbolic, causal, and stable system coupled to Einstein's equations without requiring additional frame restrictions.
This paper investigates the full width at half maximum (FWHM) of Type Ia supernova absorption features, revealing that FWHM is primarily determined by rest wavelength, velocity, and temperature, evolves slowly over time, and serves as a robust luminosity estimator—particularly through the A/γ ratio of Si II λ5972—even without phase information.
This paper presents the ACES V data release, featuring high-resolution ALMA observations of CS, SO, CH3CHO, HC3N, and H40a lines across the Central Molecular Zone to enable detailed studies of gas dynamics, chemical variations, and star formation in the Galactic center.
By fitting a Gaussian mixture model to gravitational redshifts and Gaia-derived radii for 468 white dwarfs, this study demonstrates that evolutionary models assuming a thick, mass-dependent hydrogen envelope better match observational data than those with constant envelope masses, thereby validating gravitational redshift measurements as a powerful tool for constraining white dwarf hydrogen layer properties.
This paper introduces STRIDE, a novel streaming-based dedispersion algorithm that generates per-pixel time series from interferometric images by partitioning dispersive sweeps across both time and frequency dimensions, thereby drastically reducing memory requirements and enabling efficient transient searches for low-frequency widefield interferometers like the MWA and SKA-Low.
This paper proposes a data-driven "structured generalized sliced Wasserstein distance" method using randomized neural networks to directly analyze two-dimensional polarized images from Gas Pixel Detectors, successfully determining X-ray polarization and incident angles while demonstrating high consistency with traditional statistical models.
This paper introduces a new local four-velocity gauge-like symmetry for imperfect fluids with vorticity, utilizing a tetrad formulation to construct invariant stress-energy tensors and demonstrating their application in simplifying neutron star models.
The paper proves that for spherically symmetric hairy black holes satisfying the weak energy condition, the ratio of the shadow radius to the horizon radius is bounded from below by $3\sqrt{3}/2$, a limit that is saturated by the Schwarzschild black hole.
This paper benchmarks pre-main sequence stellar evolutionary tracks by comparing HR diagram-derived masses with dynamical masses from ALMA disk observations of Upper Scorpius stars, finding that models with moderate spot coverage best match the data and that incorporating dynamical mass priors significantly reduces age scatter and improves model consistency.
Using deep JWST imaging, researchers detected and characterized mature intracluster light in the distant galaxy cluster XLSSC 122 at z ~ 2, revealing that the buildup of intracluster stars was already well underway by this epoch and providing new insights into the early dynamical evolution of massive halos.