Asymptotic Giant Brach Stars as Astroparticle Laboratories

Abstract

We show that the inclusion of axion emission during stellar evolution introduces important changes into the evolutionary behaviour of AGB stars. The mass of the resulting C/O white dwarf is much lower than the equivalent obtained from standard evolution. This implies a deficit in luminous AGB stars and in massive WDs. Moreover the total mass processed in the nuclear burning shells that is dredged-up to the surface ($3^{rd}{D}_{up}$) increases when axion emission is included, modifying the chemical composition of the photosphere. We conclude that the AGB is a promising phase to put constraints on particle physics

8 pages, 3 tables, 8 figures, accepted for publication in MNRAS

References in corpus (4)

• Results from a High-Sensitivity Search for Cosmic Axions
• Direct search for solar axions by using strong magnetic field and X-ray detectors
• Experimental Search for Solar Axions via Coherent Primakoff Conversion in a Germanium Spectrometer
• Experimental Search for Solar Axions

Cited by in corpus (9)

• Astrophysical Axion Bounds
• Nuclear weak-interaction processes in stars
• Astrophysical Axion Bounds: The 2024 Edition
• The treatment of mixing in core helium burning models -- II. Constraints from cluster star counts
• Axion Astrophysics
• Axions and Axion-like Particles
• The initial mass-final luminosity relation of type II supernova progenitors. Hints of new physics?
• Advancing Globular Cluster Constraints on the Axion-Photon Coupling
• The Impact of Axion-Like Particles on Late Stellar Evolution From Intermediate-Mass Stars to core-collapse Supernova Progenitors