A Radio Telescope Search for Axions

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Submitted to Astrophysical Journal. 11 pages of text plus 6 figures

Scientific paper

10.1086/318310

The axion is a hypothetical elementary particle and a cold dark matter candidate. It could dominate potential wells of most astrophysical objects. Axions spontaneously decay into nearly monochromatic microwave photons. We present results from a radio telescope search for these axion decay photons of mass between 298 and 363 micro-eV in Local Group dwarf galaxies. We report a limit on the axion-to-two-photon coupling constant g > 1.0 x 10^(-9) GeV^(-1).

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