Journal Article

The C/CO ratio in B335 and the decaying dark matter neutrino hypothesis

B. T. Murphy, L. T. Little and M. L. Kelly

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 294, issue 4, pages 635-641
Published in print March 1998 | ISSN: 0035-8711
Published online March 1998 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-8711.1998.01197.x
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] 3P13P0 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.

Keywords: elementary particles; ISM: abundances; ISM: individual: B335; ISM: molecules; dark matter

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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