Age Discrepancy in Three Galactic Cepheid Binaries

arXiv:2609.00459 · astro-ph.SR · Submitted 2026-08-31 · Read on arXiv

astro-ph.SR

Submitted: 2026-08-31

Updated: 2026-08-31

Code: https://github.com/SashwatSashi/Cepheid

Terminology

• Metallicity — 9× in this paper · explained in 3 episodes
• Accuracy — 7× in this paper · explained in 1 episode
• Consistency — 4× in this paper · explained in 3 episodes
• Core — 4× in this paper · explained in 2 episodes
• Calibration — 3× in this paper · explained in 7 episodes
• Terminal Age Main Sequence — 2× in this paper
• Adam — 1× in this paper · explained in 2 episodes

Sources

• First results of a magnetic survey of classical Cepheids
• Multiplicity in 5 Msun Stars
• Challenges in Cepheid Evolution and Pulsation Modeling
• Merger seismology: distinguishing massive merger products from genuine single stars using asteroseismology
• Cepheids in spectroscopic binary systems -- current status and recent discoveries
• Cepheids with giant companions. II. Spectroscopic confirmation of nine new double-lined binary systems composed of two Cepheids
• Non-evolutionary effects on period change in Magellanic Cepheids I. New binary systems revealed from Light Travel Time Effect
• Eclipsing Binaries with Classical Cepheid Component in the Magellanic System

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