Near-Infrared Observations of RR Lyrae Variables in ω Centauri
Abstract
We present Near-Infrared (NIR) J and Ks-band observations for 181 RR Lyrae stars in the Galactic Globular Cluster ω Cen. The comparison between predicted and empirical slopes of NIR Period-Luminosity (PL) relations indicates a very good agreement. Cluster distance estimates based on NIR PL relations agree quite well with recent determinations based on different standard candles, giving a true mean distance modulus μ = 13.710.05, and d=5.520.13 kpc.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.