Test of the decaying dark matter hypothesis using the Hopkins Ultraviolet Telescope
| Autor: | Gerard A. Kriss, Arthur F. Davidsen, O. Vancura, Samuel T. Durrance, W. V. Dixon, C. W. Bowers, Knox S. Long, Paul D. Feldman, R. A. Kimble, Richard C. Henry, Henry C. Ferguson, Jeffrey W. Kruk, William P. Blair, H. W. Moos |
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| Rok vydání: | 1991 |
| Předmět: |
Physics
Multidisciplinary Astrophysics::High Energy Astrophysical Phenomena Dark matter Astronomy Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Astronomical spectroscopy Galaxy Galaxy groups and clusters Ultraviolet astronomy Hopkins Ultraviolet Telescope Neutrino Astrophysics::Galaxy Astrophysics Galaxy cluster |
| Zdroj: | Nature. 351:128-130 |
| ISSN: | 1476-4687 0028-0836 |
| DOI: | 10.1038/351128a0 |
| Popis: | Sciama's hypothesis that the dark matter associated with galaxies, galaxy clusters, and the intergalactic medium consists of tau neutrinos of rest mass 28-30 eV whose decay generates ultraviolet photons of energy roughly 14-15 eV, has been tested using the Hopkins Ultraviolet Telescope flows aboard the Space Shuttle Columbia. A straightforward application of Sciama's model predicts that a spectral line from neutrino decay photons should be observed from the rich galaxy cluster Abell 665 with an SNR of about 30. No such emission was detected. For neutrinos in the mass range 27.2-32.1 eV, the observations set a lower lifetime limit significantly greater than Sciama's model requires. |
| Databáze: | OpenAIRE |
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