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À propos de : The C/CO ratio in B335 and the decaying dark matter neutrino hypothesis        

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  • The C/CO ratio in B335 and the decaying dark matter neutrino hypothesis
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  • Abstract. C18O J = 2−1, C17O J = 2−1 and [C i] 3P1−3P0 emission from the dense cold cloud B335 has been observed and modelled in order to determine the C/CO ratio. The observed ratio is compared with a prediction by Tarafdar who assumes a mechanism in which the CO dissociation is caused by photons of energy ∼ 13.8 eV. These were postulated by Sciama to result from the decay of dark matter neutrinos. Our value for the C/CO ratio sets an upper limit to the strength of the neutrino decay dissociation process, thus providing a significant datum for interstellar chemistry theory.
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