164 papers
Astro-Ph explores the fundamental nature of our universe, from the birth of stars and the behavior of black holes to the vast structures of galaxies and the invisible forces shaping cosmic evolution. This dynamic field seeks to answer profound questions about how the cosmos works, blending theoretical models with observations from powerful telescopes that peer back to the dawn of time.
At Gist.Science, we process every new preprint uploaded to arXiv in this category as soon as it appears. Our team transforms these complex research papers into accessible content, offering both detailed technical breakdowns for experts and clear, plain-language summaries for curious minds. This ensures that the latest discoveries in astrophysics are understood by everyone, not just those inside the academic bubble.
Below are the most recent astro-ph preprints, each paired with our comprehensive analysis to help you navigate the cutting edge of cosmic research.
Using DESI DR2 baryon acoustic oscillation data combined with Planck CMB and multiple supernova compilations, this study finds that the Interacting Metastable Emergent Dark Energy (IMEDE) model provides a statistically preferred description of cosmic acceleration over the standard CDM model, while showing no evidence for interactions between dark matter and dark energy.
This paper analyzes and identifies quasi-frozen polar orbits around the Moon by developing simplified analytical models with truncated gravitational harmonics to determine initial conditions, which are then validated through numerical integration using high-fidelity selenopotential and third-body perturbation models in GMAT.
This paper analyzes resonant orbits around the Moon by combining numerical and analytical models to identify specific semi-major axis and inclination values that either amplify orbital eccentricity for space debris removal or stabilize orbits to extend spacecraft lifetimes, while mapping regions where resonance effects should be avoided.
This paper presents multi-wavelength observations of SN 2026gzf, linking a decade of pre-explosion variability in a stripped-envelope progenitor to compact circumstellar material that shaped the early optical and X-ray emission following core collapse.
This paper proposes a dimensionless hydrogen-equivalent dynamical parameter, , which serves as a global ordering variable for SPARC galaxies by organizing five independent structural observables and revealing a significant structural transition near 1.25 that reduces Baryonic Tully–Fisher scatter beyond simple mass normalization.
This paper proposes the Spaceborne High Frequency Mission (SHFM), a staged constellation of small satellites equipped with mature HF payload technologies to observe shortwave radio signals above the ionosphere, thereby advancing heliophysics, radio astronomy, and ionospheric monitoring while enabling global spectrum management and interference localization.
This paper introduces an informational coherence-geometry pipeline that demonstrates how phase-sensitive topological analysis of astronomical images reveals significantly larger connected high-coherence regions in real data compared to phase-randomized surrogates, thereby establishing coherence topology as a distinct and valuable descriptor of spatial organization beyond standard spectral statistics.
This study compiles and cross-calibrates 125 production-rate measurements of five species from 12 instruments for interstellar comet 3I/ATLAS, confirming via rigorous aperture and fluorescence corrections that its extreme CO2/H2O ratio is a robust physical characteristic rather than an instrumental artifact, while also identifying specific heliocentric trends sensitive to individual data sources.
This paper develops an adjoint response theory for surface flux transport that decouples cycle amplitude from flux-to-dipole conversion efficiency, providing a highly accurate, memory-corrected framework for predicting how nonlinear modulation, source geometry, and magnetic decay influence solar cycle behavior and intercycle memory.
By integrating 13 global lunar datasets to analyze over 83,000 craters, this study identifies a multisource geophysical transition at approximately 195 km diameter that reveals how large impacts sampled and modified pre-existing hemispheric differences in the Moon's thermal structure and composition, rather than simply redefining morphological classifications.