Axion cooling of white dwarfs
J. Isern (CSIC-IEEC), S. Catalan (University of Hertfordshire), E., Garcia--Berro (Universitat Politecnica Catalunya - IEEC), M. Salaris, (Liverpool John Moores University), S. Torres (Universitat Politecnica, Catalunya - IEEC)
TL;DR
This paper explores how axion particles could influence white dwarf cooling, proposing methods to constrain axion mass using observational data like luminosity functions and pulsation periods.
Contribution
It introduces a novel approach to constrain axion mass by analyzing white dwarf luminosity functions and pulsation period variations.
Findings
Constraints on axion mass derived from white dwarf luminosity data
Potential to improve axion searches through stellar evolution observations
Methodology linking particle physics with astrophysical phenomena
Abstract
The evolution of white dwarfs is a simple gravothermal process. This process can be tested in two ways, through the luminosity function of these stars and through the secular variation of the period of pulsation of those stars that are variable. Here we show how the mass of the axion can be constrained using the white dwarf luminosity function.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Galaxies: Formation, Evolution, Phenomena