🔭 Category

astro-ph

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.

🔭 astrophysics

Hour-scale response of low-Earth-orbit satellite altitude to extreme geomagnetic storms revealed by the NinjaSat CubeSat during the 2024 solar maximum

Using data from the NinjaSat CubeSat during the 2024 solar maximum, this study reveals that hour-scale LEO satellite altitude decay during extreme geomagnetic storms is primarily driven by polar Joule heating indexed by the PC index, which leads orbital response by approximately two hours, thereby offering a critical window for drag forecasting.

Hayato Tanaka, Takao Nakagawa, Satoshi Nozawa, Toru Tamagawa, Teruaki Enoto, Takao Kitaguchi, Wataru Iwakiri, Tatehiro M (…)2026-06-25
🔭 astrophysics

Early Luminous Galaxies and Density-Driven Structure Formation: A Quantitative JADES Analysis and Testable Predictions for Dark-Sector Evolution

This paper presents a quantitative JADES analysis revealing a statistically significant correlation between early galaxy compactness and redshift, alongside other anomalies, which the authors interpret as observational support for their pre-existing "Micro–Black-Hole Network" model of density-driven structure formation, framing these findings as a successful survival of a falsification test pending spectroscopic confirmation.

Ali Moslemi Tabrizi2026-06-25
🔭 astrophysics

Resolved internal dynamics of a proto–globular cluster at cosmic dawn

Using high-resolution cosmological simulations, researchers demonstrate that a proto-globular cluster with ordered internal rotation and properties matching recent JWST observations can form rapidly at cosmic dawn (z = 10.5), revealing that these ancient systems emerge as dynamically structured entities from the very beginning of their assembly.

Raffaele Pascale, Francesco Calura, Enrico Vesperini, Alessandro Della Croce, Joki Rosdahl, Alessandro Lupi2026-06-25