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http://hdl.handle.net/20.500.12386/23183
Titolo: | No axions from the Sun | Autori: | Roncadelli, M. TAVECCHIO, Fabrizio |
Data pubblicazione: | 2015 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 450 | Da pagina:: | L26 | Abstract: | Preliminary evidence of solar axions in XMM-Newton observations has quite recently been claimed by Fraser et al. as an interpretation of their detection of a seasonally-modulated excess of the X-ray background. Within such an interpretation, these authors also estimate the axion mass to be m<SUB>a</SUB> ≃ 2.3 × 10<SUP>-6</SUP> eV. Since an axion with this mass behaves as a cold dark matter particle, according to the proposed interpretation the considered detection directly concerns cold dark matter as well. So, the suggested interpretation would lead to a revolutionary discovery if confirmed. Unfortunately, we have identified three distinct problems in this interpretation of the observed result of Fraser et al. which ultimately imply that the detected signal - while extremely interesting in itself - cannot have any relation with hypothetical axions produced by the Sun. Thus, a physically consistent interpretation of the observed seasonally-modulated X-ray excess still remains an exciting challenge. | Acknowledgments: | The work of MR is supported by the INFN grants TaSP and CTA. | URI: | http://hdl.handle.net/20.500.12386/23183 | URL: | https://academic.oup.com/mnrasl/article/450/1/L26/985812 | ISSN: | 0035-8711 | DOI: | 10.1093/mnrasl/slv040 | Bibcode ADS: | 2015MNRAS.450L..26R | Fulltext: | open |
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