α Centauri AB Archives

Stellar SEDs for α Cen A (blue) and B (orange) binned to 1 ˚A. The SED of the Sun, scaled to a distance of 1.33 pc, from Woods et al. (2009) is shown in gray for comparison. Colored background regions show the various regions described in §5.2. The regions containing the reconstructed Lyα (1214–1217 ˚A, §5.2.4) and SISTINE detector gap (1270–1300 ˚A, §5.2.3) are not colored for clarity. The PHOENIX model extends to 107 ˚A but we have restricted the Y axis to 10−17 erg s−1 cm−2 ˚A −1 , again to aid visual clarity of features within the main spectra. -- astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Radiation, Space Weather & Heliophysics, Status Report

Investigating the High-energy Radiation Environment of Planets in Sun-like Binary Systems

by Keith CowingJanuary 13, 2026January 13, 2026

Far-ultraviolet (FUV) radiation is a driving source of photochemistry in planetary atmospheres. Proper interpretation of atmospheric observations requires a full understanding of the radiation environment that a planet is exposed […]

α Centauri AB

Investigating the High-energy Radiation Environment of Planets in Sun-like Binary Systems

Underwater Oxygen Loss Threatens Earth’s Stability, Researchers Warn

Fire And Ice: Were Yellowstone’s Past Volcanic Eruptions And Glaciations Related?

Substrate-Agnostic 3x: Biosignatures, Technosignatures, Ecologies

Planet-moon Ejections In Close Stellar Encounters

First Study Hints Solar Storms May Alter The Weather During Martian Dust Storms