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Effects of initial axion production and photon--axion oscillation on type Ia supernova dimming
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Recently, Csaki, Kaloper and Terning (CKT) suggested that axion-photon oscillation in the intergalactic medium can explain the observed dimming of distant type Ia supernovae. This mechanism works only if the initial axion flux is much smaller than the initial photon flux. We study several mechanisms for such initial axion production. The direct axion production in the supernovae, the photon-axion oscillation in the magnetic field of supernovae and in the magnetic field of their host galaxies are addressed. We find it likely that the initial axion flux is very small and therefore does not pose a problem to the CKT mechanism.
Forward citations
Cited by 2 Pith papers
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Implications for dark energy of cosmic transparency in light of DESI data
No deviation found from the distance duality relation in combined DESI, CMB, and supernova data, ruling out dimming as an explanation of the Hubble tension.
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Active galactic nuclei through the prism of galaxy clusters: bounds on axion-like particles
Stacked gamma-ray spectra of 29 AGN-cluster pairs place new bounds on axion-like particles with masses around 1 to 10 neV, improving previous limits by up to a factor of four under the assumed cluster magnetic fields.
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