astro-ph papers | Gist.Science

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.

🔭 astrophysics

Efficient Analytical Modeling of Gravitational Fields of Irregular Asteroids: Applications to Lutetia, Bennu, Apophis, Itokawa, and Sylvia

This study presents a computationally efficient analytical model using the Series Potential Expansion Method (PSEM) to approximate the gravitational fields of irregular asteroids with sub-0.1% relative error, significantly reducing execution time compared to classical polyhedral approaches while enabling robust analysis of orbital dynamics and landing trajectories.

Marcelo Lisboa Mota, Safwan Aljbaae, Antonio F. B. Almeida Prado, Allan Kardec de Almeida2026-07-22

🔭 astrophysics

Levity Theory: a cosmologically motivated modified-dynamics framework for flat galactic rotation curves

This paper introduces Levity Theory, a parameter-free phenomenological framework that unifies flat galactic rotation curves and Keplerian declines by blending Newtonian gravity with a cosmologically motivated low-acceleration term modulated by baryonic distribution, black-hole dominance, and environmental factors.

Bhargav Sai Ganthakuri2026-07-22

🔭 astrophysics

Fractal Quantization Mo=del (FQM) Discrete Scale Invariance, Effective Relaxation and a Falsifiable Astrophysical Extension

This paper presents a revised Fractal Quantization Model that integrates a rigorous Fibonacci relaxation sector with a falsifiable astrophysical extension, demonstrating that while the model yields significant energetic leverage for Jupiter, it fails to provide sufficient orbital accuracy to confirm Fibonacci quantization or universal dissipation laws.

Gilmar Cruz2026-07-22

🔭 astrophysics

Bridging Low-Mass and Massive-Star Magnetospheres: Persistent Auroral Radio Emission from the Strongly Magnetic M Dwarf CW~UMa

This study demonstrates that the strongly magnetic M dwarf CW~UMa hosts a stable, dipolar magnetosphere geometrically similar to magnetic massive stars, suggesting that auroral radio emission is governed primarily by magnetospheric topology rather than stellar mass.

Ayan Biswas, Barnali Das2026-07-21

🔭 astrophysics

Low-Resource FPGA-Based Real-Time Localization of Coronal-Hole 2 Regions for On-Board Space-Weather Monitoring

This paper presents and evaluates two low-resource FPGA architectures for real-time, on-board localization of coronal holes in high-resolution solar images, demonstrating that the ultra-low-memory orthogonal scanning method achieves high localization accuracy with minimal latency and no BRAM usage to support bandwidth-constrained space-weather monitoring missions.

shuang dai, Lingping He2026-07-21

🔭 astrophysics

No solid evidence for an inner core on Mars

By analyzing high-quality seismic data from the Cerberus Fossae region using source-array methods, this study finds that coherent signals interpreted as evidence for a Martian inner core are non-unique and can be explained by various candidate radii, thereby concluding that there is no definitive proof of an inner core on Mars.

Marjolein Visser, Federico Munch, Amir Khan, Daniel Andrew Frost, Domenico Giardini2026-07-20

🔭 astrophysics

Low-Beta Plasma in Accretion Disks around Schwarzschild Black Holes: Magnetic Support, Stability, Angular-Momentum Transport, and Observational Constraints

This paper presents a self-consistent analytic treatment of low-beta plasma in accretion disks around Schwarzschild black holes, deriving exact scalings for magnetic support, stability, and angular-momentum transport while highlighting how strong magnetic fields alter MRI wavelengths and comparing these theoretical results with current horizon-scale observational constraints.

Azlan Shah, Fazli Hadi2026-07-20

🔭 astrophysics

A Universal Geometric Identity for Determining the Rotational Periods of Celestial Bodies via Central Angle Observations of the Sunset Arc

This paper introduces the "Central Sunset Law," a novel geometric framework that accurately determines the rotational periods of celestial bodies by analyzing sunset arc central angles, offering a stable and observationally independent alternative to complex dynamical calculations.

Ahmed Abdullah Ghazal2026-07-20

🔭 astrophysics

Evaluating the Universe’s Growth Rate via Overlapping Redshift Hubble Data

This paper introduces two statistical frameworks—one for correcting variance inflation caused by overlapping cosmological data and another for visualizing systematic uncertainties—to demonstrate that the Hubble tension is significantly exacerbated by double-counting data while the S₈ tension remains plausibly explainable by known systematics.

Leon Sandler2026-07-18

🔭 astrophysics

Predicting Exoplanet Mass

This study utilizes multiple linear regression on 998 exoplanets to demonstrate that while planet radius is the strongest predictor of mass, the relationship is complex and non-linear, as evidenced by multicollinearity issues, low explanatory power, and heteroscedasticity that suggest a log transformation is needed for more accurate mass predictions.

Mike Steele2026-07-17

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