2 papers
astro-ph.SR2026
On the center-to-limb variations of the He I 10 830 Ã triplet
A. G. M. Pietrow, C. Kuckein, M. Verma +4
We present high-resolution spectroscopic observations of the quiet-Sun center-to-limb variations (CLV) of the He I triplet at 10 830 Ã and the nearby Si I 10 827 Ã line, observed w…
astro-ph.SR2025
Exploring coronal abundances of M dwarfs at moderate activity levels
J. J. Chebly, K. Poppenhäger, J. D. Alvarado-Gómez +1
Main sequence stars of spectral types F, G, and K with low to moderate activity levels exhibit a recognizable pattern known as the first ionization potential effect (FIP effect), w…