Published April 6, 1998
| Version Published
Journal Article
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New Limits to the Infrared Background: Bounds on Radiative Neutrino Decay and on Contributions of Very Massive Objects to the Dark Matter Problem
Creators
- Biller, S. D.1
- Buckley, J.2
- Burdett, A.3
- Bussons Gordo, J.4
- Carter-Lewis, D. A.5
- Fegan, D. J.4
- Finley, J.6
- Gaidos, J. A.6
- Hillas, A. M.3
- Krennrich, F.5
- Lamb, R. C.7
- Lessard, R.6
- McEnery, J. E.4
- Mohanty, G.5
- Quinn, J.4
- Rodgers, A. J.3
- Rose, H. J.3
- Samuelson, F.5
- Sembroski, G.6
- Skelton, P.3
- Weekes, T. C.
- Zweerink, J.5
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1.
University of Oxford
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2.
Washington University in St. Louis
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3.
University of Leeds
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4.
University College Dublin
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5.
Iowa State University
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6.
Purdue University West Lafayette
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7.
California Institute of Technology
Abstract
From considering the effect of γ-γ interactions on recently observed TeV gamma-ray spectra, improved limits are set to the density of extragalactic infrared photons which are robust and essentially model independent. The resulting limits are more than an order of magnitude more restrictive than direct observations in the 0.025–0.3 eV regime. These limits are used to improve constraints on radiative neutrino decay in the mass range above 0.05 eV and to rule out very massive objects as providing the dark matter needed to explain galaxy rotation curves. Lower bounds on the maximum distance which TeV gamma rays may probe are also derived.
Additional Information
©1998 The American Physical Society. Received 19 September 1997; revised 9 December 1997. This work has been supported in part by PPARC, Forbairt, the U.S. Department of Energy, NASA, and the Smithsonian Institution. See Also: Comment: Georg G. Raffelt, Comment on "New Limits to the Infrared Background: Bounds on Radiative Neutrino Decay and on Contributions of Very Massive Objects to the Dark Matter Problem", Phys. Rev. Lett. 81, 4020 (1998). Focus Story: Phys. Rev. Focus 1, story 8Attached Files
Published - BILprl98.pdf
Files
BILprl98.pdf
Additional details
Identifiers
- Eprint ID
- 11272
- Resolver ID
- CaltechAUTHORS:BILprl98
Funding
- PPARC
- Forbairt
- Department of Energy
- NASA
- Smithsonian Institution
Dates
- Created
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2008-07-29Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field