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From the 2 of 29 papers with an AI index.

most citedA second-generation star in a relic dwarf galaxy

4 citations

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astro-ph.SR2026

Magnetic Heating Across the Sun and Solar-like Stars: Universal Scaling Laws from Chromospheres to Coronae

Shin Toriumi, Kosuke Namekata, Yuta Notsu +2

Magnetic activity in cool stars governs the thermal structure and high-energy radiative output of their outer atmospheres, thereby influencing stellar evolution, stellar winds, and…

astro-ph.SR2026

Direct detections of white dwarfs in four WD+dM post-common envelope binaries within 20 pc

Mairi W. O'Brien, David J. Wilson, Pier-Emmanuel Tremblay +5

The paper reports the first direct spectroscopic detections of white dwarf companions in four nearby post‑common envelope binaries, using HST near‑UV observations to determine thei…

astro-ph.SR2026

SADCat: A Catalog of Supra-Arcade Downflow Events in Solar Flares

Trestan F. Simon, Ryan J. French

Supra-arcade downflows (SADs) are sunward-traveling features routinely observed in hot fan structures above magnetic loop arcades during eruptive solar flares. We manually compiled…

astro-ph.SR2026

Stellar Forcing of (exo)Planetary Environments

Julián D. Alvarado-Gómez, Erika Palmerio, Manuel Güdel +13

The environments of exoplanets are fundamentally shaped by the magnetic activity of their host stars through radiative, plasma, and particle-driven processes. This article presents…

astro-ph.SR2026

Investigating Pre-flare Signatures in Spectroscopic Observations of an X9-class Solar Flare

Louis Seyfritz, Maria Kazachenko, Ryan French

On October 3rd, 2024, the Sun emitted an X9.0-class flare from active region NOAA 13842. The event was recorded by multiple space-based instruments, beginning hours before the erup…

astro-ph.SR2026

Anti-Solar Differential Rotation May Have Revived Magnetic Braking in the Subgiant 31 Aquilae

Travis S. Metcalfe, Jennifer L. van Saders, Thomas R. Ayres +16

Recent observations have shown that sufficiently slow rotation disrupts the organization of large-scale magnetic field in older main-sequence stars, leading to weakened magnetic br…