1998/07/31 by Helmut Schlattl, H Schlattl, Achim Weiss +1
Materials Science · Physics and Astronomy · #Axion #Chemical and Physical Properties of Materials #Constraint (computer-aided design) #Cosmology and Gravitation Theories #Coupling (piping) #Dark Matter and Cosmic Phenomena #Limit (mathematics) #Luminosity #Solar core #Standard Model (mathematical formulation) #astro-ph #hep-ph
paper · pdf · doi:10.1016/s0927-6505(98)00063-2
published as Astropart.Phys.10:353-359,1999 · 6 pages, 7 figures, RevTeX, submitted to Astrop. Phys, minor changes in figures and text
arxiv created 1998/12/03 · openalex publication_date 1999/05/01 · arxiv updated 2011/05/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Helioseismological sound-speed profiles severely constrain possible deviations from standard solar models, allowing us to derive new limits on anomalous solar energy losses by the Primakoff emission of axions. For an axion-photon coupling gaγ < 5 x 10^(-10) GeV^(-1) the solar model is almost indistinguishable from the standard case, while gaγ > 10 x 10^(-10) GeV^(-1) is probably excluded, corresponding to an axion luminosity of about 0.20 L_(sun). This constraint on gaγ is much weaker than the well-known globular-cluster limit, but about a factor of 3 more restrictive than previous solar limits. Our result is primarily of interest to the large number of current or proposed search experiments for solar axions because our limit defines the maximum gaγ for which it is self-consistent to use a standard solar model to calculate the axion luminosity.