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The first part reviews the working mechanisms, capabilities and performanceof axion helioscopes, including the achieved results so far. The 2nd part isobservationally driven. New simulation results obtained with the Geant4 codereconstruct spectral shape of solar X-ray spectra, and their isotropic emissionand lateral size. The derived rst mass of the axion(-like) particles is ~10meV.The axion interaction with magnetic field gradient is a generic theoreticalsuggestion that could reconcile present limits with relevant solar X-rayactivity. A short outlook of the experimentally expanding solar axion field isgiven.

Axion Searches with Helioscopes and astrophysical signatures for axion(-like) particles